Key material budget terms were modelled or collated as part of the Australian Agriculture Assessment 2001 projects. They cover:
Key river basin characteristics such as brad agricultural land use categories and climate are provided for context. All attributes are presented as aggregate mass, rate, ratio or percentage estimate at a river basin scale (Figure A1).
| Attribute |
Units |
Description |
|
| Context |
| Basin number |
Id |
Unique identifier for the river basin |
| Basin name |
Name |
River basin name |
| Basin area |
km2 |
River basin area |
| Improved pasture |
% |
Proportion of basin in Australian Land Use and Management Pastures' (National land use map) Classification code 12 `Grazing Improved |
| Cropping |
% |
Proportion of basin in Australian Land Use and Management Classification code 15 `Permanent Cropping' (National land use map) |
| Horticulture |
% |
Proportion of basin in Australian Land Use and Management lassification code 10 `Agricultural Land' and Australian Land Use and Management Classification code 14 `Horticulture' (National land use map) |
| Total agricultural land proportion |
|
Total agricultural land proportion |
| Climate |
| Rain |
mm/yr |
Mean daily rainfall |
| Total evaporation |
mm/yr |
Mean daily total (canopy + soil) evaporation |
| Run-off |
mm/yr |
Mean run-off (rain - evaporation) |
| Carbon and productivity |
| Net primary production |
t C/ha/yr |
Mean net primary productivity (carbon yield, available for human/animal use) |
| Plant carbon |
ha/ha |
Plant (biomass) carbon—store of carbon in standing plants |
| Litter+soil carbon |
ha/ha |
Litter + soil organic carbon |
| Landscape nutrients |
| Nitrogen from fertiliser |
kg N/ha/yr |
Nitrogen input flux from fertilisation (disaggregated from statistical local area totals, distributed proportionally by land use) |
| Nitrogen fixation |
kg N/ha/yr |
Nitrogen input flux from legumes (disaggregated from statistical local area totals, distributed proportionally by land use) |
| Total nitrogen |
kg N/ha |
Total nitrogen (organic litter + organic soil + mineral) |
| Mineral nitrogen |
ha/ha |
Mineral nitrogen |
| Mineral nitrogen concentration in soil water |
mg N/kg water |
Mineral nitrogen concentration in the soil water |
| Nitrogen leached |
kg N/ha/yr |
Nitrogen loss flux from leaching |
| Nitrogen volatilised |
kg N/ha/yr |
Nitrogen loss flux from volatilisation |
| Phosphorus from fertiliser |
kg P/ha/yr |
Phosphorus input flux from fertilisation (disaggregated from statistical local area totals, distributed proportionally by land use) |
| Total phosphorus |
kg P/ha |
Total phosphorus (organic litter + organic soil + mineral) |
| Dissolved mineral |
kg P/ha |
Dissolved mineral phosphorus readily available to plants phosphorus |
| Phosphorus concentration |
mg P/kg water |
Dissolved mineral phosphorus concentration in the soil water |
| Phosphorus leached |
kg P/m2/yr |
Phosphorus loss flux from leaching |
| Water borne erosion and sediment transport |
| Sediment supplied to rivers |
t/yr |
Total sediment supplied to streams on an annual basis from to rivers hillslope erosion, bank erosion and gully erosion. For some river basins the area assessed is less than the total basin area. |
| Sediment supply |
t/ha/yr |
Average annual rate of sediment supplied to streams from hillslope erosion, bank erosion and gully erosion. |
| Hillslope erosion |
% |
Sum of hillslope erosion (t/yr) divided by the total sediment supply value for each basin (t/yr) |
| Streambank erosion |
% |
Sum of bank erosion (t/yr) divided by the total sediment supply value for each basin (t/yr) |
| Gully erosion |
% |
Sum of gully erosion (t/yr) divided by the total sediment supply value for each basin (t/yr) |
| Length with riverbed deposition |
proportion |
Stream length in each basin with deposition greater than 0.30 m divided by the total stream length |
| European to pre- European sediment |
Ratio |
Average ratio of sediment supply under present land use conditions to that under natural conditions
|
| Sediment export to coast |
t/yr |
Sediment export to the coast |
| Contribution of sediment to coast |
t/ha/yr |
Specific sediment export to the coast |
| Sediment delivery |
Ratio |
River sediment delivery ratio (export/supply to streams) |
| Nutrients delivered to rivers, floodplains, reservoirs and estuaries |
| Phosphorus from fine sediment |
% |
Percentage of average annual total phosphorus load that is delivered to the river network in the basin in association with fine sediments. |
| Phosphorus from point sources |
% |
Percentage of average annual total phosphorus load that is delivered to the river network in the basin in dissolved forms from urban sewage and industrial discharges. |
| Phosphorus - dissolved from diffuse sources |
% |
Percentage of average annual total phosphorus load that is delivered to the river network in the basin in dissolved forms by surface and subsurface run-off. |
| Phosphorus deposited on floodplain |
% |
Percentage of average annual total phosphorus load basin that is deposited with fine sediment on river floodplains in the basin. For internal basins this figure includes the contributions from upstream basins in the budget calculations. |
| Phosphorus deposited in reservoirs |
% |
Percentage of average annual total phosphorus load in the basin that is deposited with fine sediment in on-river reservoirs. For internal basins this figure includes the contributions fromupstream basins in the budget calculations. |
| Phosphorus delivered to estuaries |
% |
Percentage of average annual total phosphorus load in the basin that is delivered to estuarine or coastal waters (or to a downstream basin in the case of internal basins). For internal basins this figure includes the contributions from upstream basins in the budget calculations. |
| Phosphorus—total basin export |
t P/yr |
Average annual export of total phosphorus from the basin in tonnes per year. For internal basins this figure includes the contributions from upstream basins in the budget calculations. |
| Phosphorus—export rate |
kg P/ha/yr |
Average annual total phosphorus areal export rate in kilograms per hectare per year. Contributions from upstream basins are not included in the calculation of this figure, and so some internal basins show as net sinks. |
| Phosphorus load—times pre-European |
ratio |
Network-link averaged ratio of average annual total phosphorus load between current and pre-disturbance conditions. |
| Phosphorus—dissolved to total |
ratio |
Network-link averaged ratio of average annual dissolved phosphorus load to average annual total phosphorus load. |
| Nitrogen from sediments |
% |
Percentage of average annual total nitrogen load that is delivered to the river network in the basin in association with fine sediment. |
| Nitrogen from point sources |
% |
Percentage of average annual total nitrogen load that is delivered to the river network in the basin in dissolved forms from urban sewage and industrial discharges. |
| Nitrogen—dissolved from diffuse sources |
% |
Percentage of average annual total nitrogen load that is delivered to the river network in the basin in dissolved forms by surface and >subsurface run-off. |
| Nitrogen deposited on floodplain |
% |
Percentage of average annual total nitrogen load basin that is deposited with fine sediment on river floodplains in the basin. For internal basins this figure includes the contributions from upstream basins in the budget calculations |
| Nitrogen deposited in reservoirs |
% |
Percentage of average annual total nitrogen load in the basin that is deposited with fine sediment in on-river reservoirs. For internal basins this figure includes the contributions from upstream basins in the budget calculations |
| Nitrogen—denitrified |
% |
Percentage of average annual total nitrogen load in the basin that is lost from the river to the atmosphere by denitrification processes. For internal basins this figure includes the contributions from upstream basins in the budget calculations. |
| Nitrogen delivered to estuary |
% |
Percentage of average annual total nitrogen load in the basin that is delivered to estuarine or coastal waters (or to a downstream basin in the case of internal basins). For internal basins this figure includes the contributions from upstream basins in the budget calculations. |
| Nitrogen—total basin export |
t/yr |
Average annual export of total nitrogen from the basin in tonnes per year. For internal basins this figure includes the contributions from upstream basins in the budget calculations. |
| Nitrogen—export rate |
kg/ha/yr |
Average annual total nitrogen areal export rate in kilograms per hectare per year. Contributions from upstream basins are not included in the calculation of this figure, and so some internal basins show as net sinks. |
| Nitrogen load—times pre-European |
ratio |
Network-link averaged ratio of average annual total nitrogen load between current and pre-disturbance conditions. |
| Nitrogen—dissolved to total |
ratio |
Network-link averaged ratio of average annual dissolved nitrogen load to average annual total nitrogen load. |
| Context |
| Basin number |
101 |
102 |
103 |
104 |
105 |
106 |
107 |
108 |
109 |
110 |
111 |
112 |
113 |
114 |
115 |
116 |
117 |
118 |
119 |
120 |
121 |
| Basin name |
Jacky Jacky Creek |
Olive/Pascoe Rivers River |
Lockhart River |
Stewart River |
Normanby River |
Jeannie River |
Endeavour River |
Daintree River |
Mossman River |
Barron River |
Mulgrave-Russell River |
Johnstone River |
Tully River |
Murray River (QLD) |
Hinchinbrook Island |
Herbert River |
Black River |
Ross River |
Haughton River |
Burdekin River |
|
| Basin area (km2) |
2981 |
4207 |
2859 |
2692 |
24339 |
3923 |
2065 |
1907 |
535 |
2136 |
1998 |
2319 |
1650 |
1212 |
400 |
9854 |
1141 |
1394 |
4357 |
130138 |
3574 |
| Improved pasture (%) |
0.00 |
0.18 |
0.08 |
0.73 |
0.01 |
0.29 |
0.48 |
0.47 |
3.98 |
6.08 |
1.57 |
8.92 |
0.79 |
0.98 |
0.00 |
0.91 |
4.43 |
0.60 |
0.12 |
2.02 |
1.14 |
| Cropping (%) |
0.00 |
0.00 |
0.00 |
0.00 |
0.09 |
0.00 |
0.00 |
2.39 |
2.80 |
1.10 |
12.85 |
17.29 |
3.65 |
2.62 |
0.00 |
5.11 |
1.65 |
0.36 |
8.09 |
0.65 |
0.17 |
| Horticulture (%) |
0.00 |
0.00 |
0.04 |
0.00 |
0.00 |
0.06 |
0.09 |
0.06 |
3.67 |
4.06 |
6.13 |
2.14 |
0.83 |
0.51 |
0.00 |
0.23 |
0.73 |
31.77 |
11.82 |
0.05 |
0.89 |
| Total agricultural land proportion (%) |
0.00 |
0.18 |
0.13 |
0.73 |
0.09 |
0.35 |
0.57 |
2.92 |
10.45 |
11.24 |
20.55 |
28.35 |
5.27 |
4.11 |
0.00 |
6.25 |
6.81 |
32.73 |
20.03 |
2.71 |
2.21 |
| Climate |
| Rain (mm/yr) |
1655 |
1687 |
1580 |
1255 |
1085 |
1306 |
1733 |
2384 |
1852 |
1311 |
3141 |
3217 |
2739 |
2239 |
2206 |
1194 |
1366 |
977 |
879 |
596 |
840 |
| Total evaporation (mm/yr) |
839 |
890 |
877 |
730 |
723 |
816 |
982 |
1188 |
1073 |
863 |
1332 |
1356 |
1284 |
1143 |
1164 |
837 |
923 |
782 |
765 |
549 |
730 |
| Run-off (mm/yr) |
816 |
797 |
704 |
525 |
361 |
490 |
752 |
1196 |
779 |
449 |
1809 |
1862 |
1455 |
1097 |
1042 |
357 |
443 |
195 |
143 |
48 |
112 |
| Carbon |
| Net primary production (tC/ha/yr) |
3.4 |
4.0 |
5.6 |
2.9 |
2.1 |
3.4 |
5.7 |
9.1 |
7.7 |
5.0 |
9.4 |
9.4 |
8.9 |
8.6 |
8.6 |
4.5 |
5.7 |
2.9 |
3.2 |
1.9 |
2.7 |
| Plant carbon (tC/ha) |
58.5 |
67.5 |
96.1 |
50.6 |
35.5 |
57.6 |
97.2 |
152.5 |
131.1 |
84.9 |
157.1 |
156.6 |
148.4 |
144.3 |
144.4 |
77.6 |
97.1 |
50.2 |
54.9 |
33.7 |
45.8 |
| Litter+soil carbon (tC/ha) |
44.0 |
52.4 |
97.0 |
48.8 |
31.2 |
44.2 |
86.8 |
167.4 |
131.1 |
98.0 |
216.4 |
255.5 |
183.6 |
155.2 |
156.4 |
78.0 |
88.4 |
47.5 |
55.8 |
41.0 |
47.8 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
0.00 |
0.00 |
0.00 |
0.00 |
0.01 |
0.00 |
0.00 |
0.30 |
2.97 |
1.42 |
2.56 |
4.73 |
2.50 |
1.75 |
0.00 |
1.78 |
1.87 |
0.25 |
3.55 |
0.54 |
0.49 |
| Nitrogen fixation (kg N/ha/yr) |
11.39 |
13.18 |
18.74 |
9.80 |
6.97 |
11.22 |
19.08 |
30.20 |
27.09 |
20.51 |
35.76 |
61.08 |
29.62 |
28.64 |
28.66 |
17.50 |
19.04 |
9.74 |
10.66 |
6.79 |
8.88 |
| Total nitrogen (kg N/ha) |
3799 |
4503 |
8407 |
4217 |
2688 |
3806 |
7427 |
14070 |
11210 |
8574 |
17360 |
21210 |
14880 |
12950 |
13290 |
6742 |
7622 |
4104 |
4838 |
3489 |
4129 |
| Mineral nitrogen (kg N/ha) |
77 |
85 |
110 |
54 |
49 |
61 |
112 |
224 |
199 |
143 |
276 |
336 |
258 |
242 |
328 |
121 |
157 |
60 |
68 |
46 |
50 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
33 |
35 |
49 |
33 |
27 |
34 |
45 |
57 |
56 |
46 |
53 |
57 |
52 |
56 |
56 |
45 |
48 |
35 |
39 |
39 |
36 |
| Nitrogen leached (kg N/ha/yr) |
10 |
11 |
12 |
7 |
5 |
8 |
13 |
23 |
18 |
10 |
33 |
35 |
24 |
20 |
20 |
10 |
11 |
5 |
7 |
4 |
5 |
| Nitrogen volatilised (kg N/ha/yr) |
2.28 |
2.64 |
3.75 |
1.96 |
1.38 |
2.24 |
3.82 |
6.04 |
5.15 |
3.33 |
6.29 |
6.25 |
5.92 |
5.73 |
5.73 |
3.02 |
3.81 |
1.95 |
2.13 |
1.30 |
1.78 |
| Phosphorus from fertiliser (kg P/ha/yr) |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.10 |
0.87 |
0.43 |
0.65 |
1.53 |
0.67 |
0.53 |
0.00 |
0.43 |
0.09 |
0.06 |
0.76 |
0.07 |
0.32 |
| Total phosphorus (kg P/ha) |
741 |
844 |
1281 |
653 |
489 |
671 |
1227 |
2293 |
1945 |
1385 |
2782 |
3180 |
2505 |
2283 |
2701 |
1166 |
1436 |
661 |
763 |
525 |
614 |
| Dissolved mineral phosphorus (kg P/ha) |
14.1 |
15.6 |
20.2 |
10.0 |
9.0 |
11.2 |
20.7 |
41.2 |
36.8 |
25.7 |
49.9 |
56.1 |
47.5 |
44.7 |
60.4 |
22.0 |
28.7 |
10.9 |
12.7 |
8.4 |
9.3 |
| Phosphorus concentration (mg P/kg W) |
6.0 |
6.4 |
9.0 |
6.1 |
5.0 |
6.3 |
8.2 |
10.6 |
10.2 |
8.3 |
9.7 |
9.6 |
9.6 |
10.3 |
10.3 |
8.1 |
8.8 |
6.5 |
7.2 |
7.0 |
6.7 |
| Phosphorus leached (kg P/m2/yr) |
1.82 |
1.95 |
2.20 |
1.23 |
0.95 |
1.51 |
2.40 |
4.17 |
3.24 |
1.74 |
5.97 |
6.10 |
4.44 |
3.75 |
3.66 |
1.77 |
2.04 |
1.00 |
1.22 |
0.69 |
0.88 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
429312 |
1002222 |
76457 |
316955 |
3898665 |
499439 |
608736 |
112043 |
18859 |
256782 |
283721 |
389552 |
148375 |
32243 |
1300378 |
120295 |
206769 |
697936 |
18446498 |
932904 |
| Sediment supply (t/ha/yr) |
2.48 |
2.60 |
0.38 |
1.35 |
1.60 |
1.93 |
3.12 |
0.72 |
0.59 |
1.19 |
1.71 |
1.74 |
0.85 |
0.45 |
1.35 |
1.71 |
1.81 |
1.85 |
1.42 |
3.09 |
| Proportion from hillslopes (%) |
85.13 |
79.27 |
22.48 |
69.65 |
88.03 |
93.85 |
97.36 |
81.89 |
77.52 |
79.31 |
69.56 |
64.96 |
32.73 |
26.66 |
74.71 |
91.87 |
87.63 |
81.34 |
66.67 |
85.82 |
| Proportion from bank erosion (%) |
11.29 |
18.03 |
77.25 |
23.55 |
3.12 |
3.86 |
2.06 |
17.41 |
20.85 |
10.44 |
28.49 |
29.26 |
62.60 |
65.19 |
11.75 |
3.99 |
3.87 |
5.49 |
5.99 |
3.39 |
| Proportion from gullies (%) |
3.58 |
2.70 |
0.27 |
6.79 |
8.84 |
2.29 |
0.58 |
0.71 |
1.64 |
10.25 |
1.95 |
5.78 |
4.67 |
8.15 |
13.54 |
4.14 |
8.50 |
13.18 |
27.34 |
10.79 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.00 |
0.00 |
0.00 |
0.05 |
0.02 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.04 |
0.00 |
0.00 |
0.00 |
0.08 |
0.01 |
0.00 |
0.13 |
0.11 |
0.04 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
52 |
46 |
23 |
10 |
3 |
3 |
5 |
4 |
5 |
8 |
6 |
29 |
6 |
6 |
8 |
3 |
2 |
10 |
15 |
11 |
| Sediment export to the coast (t/yr) |
329832 |
712764 |
37137 |
160798 |
1620279 |
355885 |
486871 |
94132 |
15131 |
145877 |
222425 |
305142 |
88084 |
17098 |
664787 |
82887 |
58383 |
172454 |
2443232 |
509528 |
| Specific sediment export to the coast (t/ha/yr) |
1.91 |
1.85 |
0.18 |
0.69 |
0.66 |
1.37 |
2.49 |
0.61 |
0.48 |
0.68 |
1.34 |
1.36 |
0.51 |
0.24 |
0.69 |
1.18 |
0.51 |
0.46 |
0.19 |
1.69 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.77 |
0.71 |
0.49 |
0.51 |
0.42 |
0.71 |
0.80 |
0.84 |
0.80 |
0.57 |
0.78 |
0.78 |
0.59 |
0.53 |
0.51 |
0.69 |
0.28 |
0.25 |
0.13 |
0.55 |
| River nutrients |
| Phosphorus from fine sediments (%) |
98 |
97 |
72 |
93 |
97 |
96 |
97 |
84 |
88 |
81 |
87 |
94 |
81 |
66 |
97 |
96 |
96 |
98 |
99 |
99 |
| Phosphorus from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
15 |
9 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
0 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
2 |
3 |
28 |
7 |
3 |
4 |
3 |
16 |
12 |
3 |
4 |
6 |
19 |
34 |
3 |
4 |
2 |
2 |
1 |
1 |
| Phosphorus deposited on floodplain (%) |
16 |
19 |
14 |
39 |
49 |
25 |
17 |
4 |
11 |
23 |
5 |
4 |
6 |
8 |
32 |
28 |
26 |
66 |
60 |
41 |
| Phosphorus deposited in reservoirs (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
9 |
0 |
0 |
0 |
0 |
0 |
0 |
46 |
10 |
22 |
0 |
| Phosphorus delivered to estuaries (%) |
84 |
81 |
86 |
61 |
51 |
75 |
83 |
96 |
89 |
68 |
95 |
96 |
94 |
92 |
68 |
72 |
28 |
25 |
19 |
59 |
| Phosphorus - total basin export (t P/yr) |
223 |
432 |
28 |
49 |
920 |
159 |
228 |
83 |
20 |
168 |
486 |
430 |
72 |
17 |
702 |
54 |
38 |
137 |
2538 |
372 |
| Phosphorus - export rate (kg P/ha/yr) |
0.75 |
1.03 |
0.10 |
0.18 |
0.38 |
0.43 |
1.04 |
0.38 |
0.31 |
0.72 |
2.41 |
1.86 |
0.42 |
0.15 |
0.64 |
0.50 |
0.29 |
0.31 |
0.19 |
1.02 |
| Phosphorus load - times pre-European (ratio) |
5.5 |
3.4 |
2.1 |
4.1 |
2.4 |
1.1 |
2.8 |
1.4 |
2.1 |
3.9 |
3.7 |
5.0 |
1.9 |
2.1 |
1.4 |
2.3 |
1.3 |
3.7 |
5.9 |
8.0 |
| Phosphorus - dissolved to total (ratio) |
19 |
19 |
44 |
11 |
7 |
17 |
20 |
57 |
29 |
16 |
34 |
37 |
65 |
57 |
13 |
8 |
8 |
5 |
3 |
2 |
| Nitrogen from sediments (%) |
91 |
91 |
31 |
70 |
89 |
89 |
88 |
57 |
68 |
76 |
75 |
70 |
52 |
35 |
85 |
88 |
93 |
91 |
91 |
95 |
| Nitrogen from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
7 |
4 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
9 |
9 |
69 |
30 |
11 |
11 |
12 |
43 |
32 |
17 |
20 |
30 |
48 |
65 |
15 |
12 |
7 |
9 |
9 |
5 |
| Nitrogen deposited on floodplain (%) |
16 |
19 |
6 |
28 |
45 |
24 |
16 |
4 |
9 |
23 |
5 |
4 |
5 |
6 |
28 |
25 |
23 |
61 |
53 |
40 |
| Nitrogen deposited in reservoirs (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
6 |
0 |
0 |
0 |
0 |
0 |
0 |
39 |
9 |
18 |
0 |
| Nitrogen - denitrified (%) |
0 |
0 |
3 |
3 |
1 |
1 |
0 |
1 |
1 |
1 |
0 |
0 |
1 |
1 |
1 |
1 |
1 |
1 |
5 |
1 |
| Nitrogen delivered to estuary (%) |
84 |
81 |
91 |
69 |
54 |
76 |
83 |
95 |
90 |
70 |
94 |
96 |
94 |
93 |
71 |
75 |
37 |
29 |
24 |
60 |
| Nitrogen - total export (t/yr) |
1243 |
2875 |
267 |
295 |
4988 |
1207 |
1370 |
684 |
164 |
718 |
2121 |
1998 |
617 |
195 |
3415 |
409 |
269 |
653 |
10314 |
1367 |
| Nitrogen - export rate (kg/ha/yr) |
4.19 |
6.88 |
0.89 |
1.05 |
2.04 |
3.28 |
6.24 |
3.12 |
2.57 |
3.08 |
10.52 |
8.63 |
3.59 |
1.67 |
3.10 |
3.79 |
2.06 |
1.49 |
0.79 |
3.73 |
| Nitrogen load - times pre-European (ratio) |
3.0 |
2.4 |
1.2 |
2.0 |
1.9 |
1.1 |
2.2 |
1.3 |
1.7 |
2.6 |
2.5 |
2.6 |
1.3 |
1.4 |
1.4 |
2.1 |
1.4 |
3.1 |
3.6 |
5.5 |
| Nitrogen - dissolved to total (ratio) |
28 |
29 |
79 |
43 |
21 |
26 |
30 |
60 |
35 |
26 |
29 |
37 |
66 |
70 |
21 |
16 |
22 |
15 |
18 |
8 |
| Context |
| Basin number |
122 |
123 |
124 |
125 |
126 |
127 |
128 |
129 |
130 |
131 |
132 |
133 |
134 |
135 |
136 |
137 |
138 |
139 |
140 |
141 |
142 |
| Basin name |
Proserpine River |
Whitsunday Island |
O'Connell River |
Pioneer River |
Plane Creek |
Styx River |
Shoalwater Creek |
Water Park Creek |
Fitzroy River (QLD) |
Curtis Island |
Calliope River |
Boyne River |
Baffle Creek |
Kolan River |
Burnett River |
Burrum River |
Mary River (QLD) |
Fraser Island |
Noosa River |
Maroochy River |
Pine River |
| Basin area (km2) |
2592 |
257 |
2373 |
1584 |
2545 |
3062 |
3873 |
1867 |
142677 |
582 |
2211 |
2509 |
4135 |
2909 |
33320 |
3351 |
9422 |
1680 |
1952 |
1598 |
1481 |
| Improved pasture (%) |
3.26 |
0.00 |
4.05 |
0.11 |
3.28 |
1.69 |
1.26 |
0.06 |
9.23 |
0.00 |
0.51 |
0.00 |
4.67 |
2.33 |
2.90 |
2.54 |
5.13 |
0.00 |
1.12 |
2.72 |
0.94 |
| Cropping (%) |
6.84 |
0.00 |
10.65 |
19.84 |
23.52 |
1.48 |
0.00 |
0.00 |
3.16 |
0.00 |
0.05 |
0.00 |
0.11 |
6.26 |
2.29 |
8.27 |
1.68 |
0.00 |
0.18 |
7.70 |
0.20 |
| Horticulture (%) |
0.62 |
0.00 |
0.09 |
0.15 |
0.00 |
0.13 |
0.09 |
0.61 |
3.11 |
27.41 |
39.60 |
46.12 |
0.43 |
0.67 |
1.20 |
3.53 |
2.86 |
0.00 |
7.17 |
24.53 |
21.92 |
| Total agricultural land proportion (%) |
10.71 |
0.00 |
14.80 |
20.10 |
26.80 |
3.30 |
1.35 |
0.67 |
15.50 |
27.41 |
40.17 |
46.12 |
5.22 |
9.26 |
6.39 |
14.35 |
9.67 |
0.00 |
8.47 |
34.95 |
23.05 |
| Climate |
| Rain (mm/yr) |
1339 |
1673 |
1569 |
1471 |
1420 |
795 |
846 |
1219 |
632 |
806 |
806 |
864 |
1029 |
860 |
690 |
906 |
1061 |
1356 |
1402 |
1566 |
1256 |
| Total evaporation (mm/yr) |
980 |
1098 |
1083 |
1066 |
1049 |
725 |
759 |
953 |
602 |
738 |
747 |
788 |
897 |
797 |
653 |
819 |
880 |
1007 |
995 |
1059 |
961 |
| Run off (mm/yr) |
369 |
575 |
494 |
428 |
389 |
70 |
90 |
266 |
30 |
68 |
60 |
77 |
133 |
83 |
40 |
100 |
184 |
350 |
408 |
512 |
295 |
| Carbon |
| Net primary production (tC/ha/yr) |
5.6 |
6.9 |
6.5 |
6.1 |
5.5 |
3.4 |
3.6 |
5.2 |
2.9 |
3.9 |
4.0 |
4.9 |
5.3 |
4.6 |
3.7 |
4.4 |
6.2 |
7.6 |
6.7 |
7.1 |
6.1 |
| Plant carbon (tC/ha) |
94.6 |
115.9 |
109.8 |
104.6 |
93.3 |
58.0 |
61.6 |
87.8 |
51.0 |
67.4 |
69.5 |
85.0 |
90.4 |
78.5 |
67.4 |
74.6 |
111.8 |
128.2 |
113.5 |
121.1 |
113.5 |
| Litter + soil carbon (tC/ha) |
93.3 |
122.2 |
118.2 |
106.7 |
92.2 |
59.5 |
60.9 |
73.6 |
60.9 |
74.8 |
76.5 |
86.8 |
85.7 |
77.0 |
71.1 |
65.5 |
109.8 |
83.4 |
86.8 |
112.8 |
112.2 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
2.07 |
0.00 |
3.71 |
2.62 |
4.62 |
0.51 |
0.06 |
0.20 |
0.79 |
0.15 |
0.55 |
0.31 |
1.45 |
0.93 |
0.79 |
1.51 |
1.11 |
0.00 |
0.24 |
4.39 |
2.07 |
| Nitrogen fixation (kg N/ha/yr) |
18.56 |
22.87 |
21.63 |
20.42 |
21.47 |
14.52 |
13.99 |
17.34 |
14.26 |
13.08 |
13.96 |
16.23 |
17.91 |
16.67 |
15.94 |
17.97 |
30.42 |
25.31 |
22.45 |
23.62 |
20.28 |
| Total nitrogen (kg N/ha) |
7920 |
10250 |
10070 |
9104 |
7845 |
5156 |
5279 |
6248 |
5276 |
6494 |
6647 |
7481 |
7334 |
6639 |
6170 |
5666 |
9426 |
6759 |
7070 |
9164 |
9449 |
| Mineral nitrogen (kg N/ha) |
90 |
107 |
128 |
177 |
91 |
61 |
67 |
85 |
63 |
62 |
67 |
71 |
83 |
73 |
73 |
90 |
136 |
115 |
137 |
155 |
130 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
46 |
49 |
47 |
45 |
43 |
43 |
43 |
44 |
47 |
46 |
46 |
50 |
48 |
48 |
50 |
46 |
57 |
58 |
51 |
51 |
50 |
| Nitrogen leached (kg N/ha/yr) |
11 |
13 |
14 |
14 |
14 |
6 |
6 |
9 |
5 |
6 |
5 |
6 |
7 |
7 |
6 |
8 |
10 |
15 |
13 |
15 |
10 |
| Nitrogen volatilised (kg N/ha/yr) |
3.71 |
4.58 |
4.33 |
4.08 |
3.67 |
2.25 |
2.39 |
3.44 |
1.94 |
2.62 |
2.70 |
3.25 |
3.53 |
3.04 |
2.46 |
2.92 |
4.15 |
5.06 |
4.49 |
4.72 |
4.06 |
| Phosphorus from fertiliser (kg P/ha/yr) |
0.71 |
0.00 |
1.01 |
0.42 |
0.70 |
0.08 |
0.02 |
0.03 |
0.13 |
0.01 |
0.15 |
0.03 |
0.36 |
0.24 |
0.19 |
0.48 |
0.36 |
0.00 |
0.08 |
0.88 |
0.48 |
| Total phosphorus (kg P/ha) |
1149 |
1414 |
1494 |
1637 |
1127 |
751 |
796 |
1002 |
750 |
871 |
908 |
1016 |
1067 |
953 |
898 |
949 |
1472 |
1277 |
1348 |
1577 |
1462 |
| Dissolved mineral phosphorus (kg P/ha) |
16.7 |
19.8 |
23.8 |
32.5 |
16.4 |
10.9 |
12.2 |
15.7 |
11.1 |
11.4 |
12.3 |
13.0 |
15.3 |
13.4 |
13.2 |
16.2 |
24.0 |
21.3 |
25.3 |
28.7 |
24.0 |
| Phosphorus concentration (mg P/kg W) |
8.5 |
9.0 |
8.7 |
8.3 |
7.8 |
7.7 |
7.8 |
8.1 |
8.2 |
8.5 |
8.5 |
9.3 |
8.9 |
8.8 |
9.0 |
8.3 |
10.2 |
10.7 |
9.3 |
9.4 |
9.3 |
| Phosphorus leached (kg P/m2/yr) |
2.06 |
2.42 |
2.53 |
2.61 |
2.49 |
1.00 |
1.07 |
1.66 |
0.88 |
1.02 |
1.00 |
1.16 |
1.38 |
1.29 |
1.02 |
1.46 |
1.84 |
2.84 |
2.36 |
2.75 |
1.87 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
360226 |
476556 |
394058 |
170267 |
311714 |
121338 |
11823 |
16360557 |
162974 |
104449 |
208395 |
202067 |
2933214 |
84291 |
661576 |
18546 |
79989 |
58966 |
| Sediment supply (t/ha/yr) |
1.95 |
2.41 |
2.33 |
1.11 |
1.24 |
0.46 |
0.21 |
1.15 |
0.84 |
0.42 |
0.61 |
0.72 |
0.87 |
0.29 |
0.70 |
0.15 |
0.74 |
0.47 |
| Proportion from hillslopes (%) |
88.13 |
88.54 |
85.76 |
78.13 |
78.14 |
57.32 |
65.11 |
62.61 |
49.75 |
30.55 |
64.50 |
55.36 |
44.18 |
52.86 |
38.54 |
9.92 |
51.89 |
44.62 |
| Proportion from bank erosion (%) |
6.96 |
7.57 |
10.02 |
13.25 |
7.58 |
17.67 |
14.14 |
12.70 |
16.44 |
36.59 |
14.96 |
18.99 |
24.12 |
27.34 |
44.43 |
52.02 |
28.70 |
33.93 |
| Proportion from gullies (%) |
4.91 |
3.90 |
4.22 |
8.62 |
14.28 |
25.00 |
20.75 |
24.69 |
33.81 |
32.86 |
20.54 |
25.65 |
31.70 |
19.80 |
17.03 |
38.07 |
19.42 |
21.45 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.07 |
0.06 |
0.00 |
0.00 |
0.09 |
0.19 |
0.00 |
0.19 |
0.15 |
0.00 |
0.04 |
0.11 |
0.15 |
0.00 |
0.11 |
0.04 |
0.00 |
0.00 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
31 |
45 |
28 |
46 |
31 |
12 |
27 |
21 |
35 |
8 |
29 |
36 |
96 |
36 |
18 |
15 |
28 |
40 |
| Sediment export to the coast (t/yr) |
227314 |
366309 |
288343 |
114860 |
136011 |
45166 |
7940 |
2635482 |
60772 |
16974 |
103376 |
61589 |
728607 |
33624 |
266713 |
7288 |
45525 |
20687 |
| Specific sediment export to the coast (t/ha/yr) |
1.23 |
1.85 |
1.71 |
0.75 |
0.54 |
0.17 |
0.14 |
0.18 |
0.31 |
0.07 |
0.30 |
0.22 |
0.22 |
0.11 |
0.28 |
0.06 |
0.42 |
0.16 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.63 |
0.77 |
0.73 |
0.67 |
0.44 |
0.37 |
0.67 |
0.16 |
0.37 |
0.16 |
0.50 |
0.30 |
0.25 |
0.40 |
0.40 |
0.39 |
0.57 |
0.35 |
| River nutrients |
| Phosphorus from fine sediments (%) |
97 |
96 |
77 |
91 |
98 |
93 |
70 |
98 |
96 |
90 |
92 |
94 |
95 |
84 |
85 |
47 |
42 |
83 |
| Phosphorus from point sources (%) |
0 |
0 |
20 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
6 |
0 |
53 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
3 |
4 |
3 |
9 |
2 |
7 |
30 |
2 |
4 |
10 |
8 |
6 |
3 |
16 |
9 |
53 |
6 |
17 |
| Phosphorus deposited on floodplain (%) |
31 |
17 |
17 |
21 |
53 |
47 |
12 |
74 |
48 |
21 |
39 |
33 |
63 |
37 |
37 |
15 |
14 |
15 |
| Phosphorus deposited in reservoirs (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
8 |
0 |
45 |
0 |
26 |
15 |
5 |
1 |
0 |
2 |
29 |
| Phosphorus delivered to estuaries (%) |
69 |
83 |
83 |
79 |
47 |
53 |
88 |
18 |
52 |
34 |
61 |
41 |
22 |
58 |
62 |
85 |
84 |
56 |
| Phosphorus - total basin export (t P/yr) |
185 |
221 |
276 |
67 |
109 |
45 |
6 |
2002 |
56 |
19 |
68 |
48 |
429 |
31 |
229 |
9 |
93 |
17 |
| Phosphorus - export rate (kg P/ha/yr) |
0.74 |
0.89 |
1.60 |
0.26 |
0.35 |
0.12 |
0.03 |
0.14 |
0.25 |
0.07 |
0.16 |
0.16 |
0.13 |
0.09 |
0.25 |
0.04 |
0.57 |
0.11 |
| Phosphorus load - times pre-European (ratio) |
10.7 |
10.3 |
7.6 |
8.8 |
14.4 |
2.4 |
2.7 |
6.9 |
7.8 |
2.3 |
5.0 |
6.2 |
6.3 |
2.8 |
3.1 |
1.3 |
5.1 |
2.9 |
| Phosphorus - dissolved to total (ratio) |
8 |
6 |
10 |
13 |
4 |
30 |
41 |
5 |
8 |
25 |
15 |
15 |
8 |
33 |
23 |
66 |
35 |
30 |
| Nitrogen from sediments (%) |
82 |
86 |
84 |
64 |
87 |
63 |
30 |
86 |
78 |
60 |
72 |
76 |
82 |
50 |
68 |
15 |
55 |
61 |
| Nitrogen from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
14 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
18 |
14 |
16 |
36 |
13 |
37 |
70 |
14 |
22 |
40 |
28 |
24 |
18 |
50 |
32 |
85 |
32 |
39 |
| Nitrogen deposited on floodplain (%) |
28 |
17 |
18 |
16 |
45 |
32 |
6 |
66 |
42 |
17 |
29 |
27 |
54 |
21 |
28 |
5 |
12 |
11 |
| Nitrogen deposited in reservoirs (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
8 |
0 |
32 |
0 |
22 |
12 |
4 |
1 |
0 |
2 |
23 |
| Nitrogen - denitrified (%) |
1 |
1 |
2 |
1 |
2 |
4 |
3 |
5 |
3 |
5 |
2 |
3 |
6 |
6 |
4 |
4 |
2 |
2 |
| Nitrogen delivered to estuary (%) |
71 |
82 |
80 |
83 |
53 |
64 |
91 |
22 |
55 |
47 |
69 |
48 |
28 |
69 |
68 |
91 |
84 |
63 |
| Nitrogen - total export (t/yr) |
637 |
1277 |
1073 |
401 |
463 |
220 |
57 |
8831 |
207 |
147 |
499 |
294 |
2397 |
262 |
1638 |
125 |
364 |
179 |
| Nitrogen - export rate (kg/ha/yr) |
2.53 |
5.16 |
6.22 |
1.57 |
1.50 |
0.59 |
0.31 |
0.62 |
0.92 |
0.58 |
1.20 |
1.00 |
0.72 |
0.78 |
1.76 |
0.58 |
2.24 |
1.17 |
| Nitrogen load - times pre-European (ratio) |
4.2 |
5.3 |
3.6 |
3.2 |
5.0 |
1.6 |
1.6 |
3.3 |
2.9 |
1.5 |
2.4 |
2.8 |
3.0 |
1.8 |
1.8 |
1.1 |
2.3 |
1.8 |
| Nitrogen - dissolved to total (ratio) |
20 |
15 |
24 |
34 |
18 |
58 |
63 |
25 |
32 |
56 |
39 |
34 |
32 |
59 |
51 |
86 |
51 |
55 |
| Context |
| Basin number |
143 |
144 |
145 |
146 |
201 |
202 |
203 |
204 |
205 |
206 |
207 |
208 |
209 |
210 |
211 |
212 |
213 |
214 |
215 |
216 |
217 |
| Basin name |
Brisbane River |
Stradbroke Island |
Logan-Albert River |
South Coast |
Tweed River |
Brunswick River |
Richmond River |
Clarence River |
Bellinger River |
Macleay River |
Hastings River |
Manning River |
Karuah River |
Hunter River |
Macquarie-Tuggerah Lakes |
Hawkesbury River |
Sydney Coast - Georges River |
Wollongong Coast |
Shoalhaven River |
Clyde River - Jervis Bay |
Moruya River |
| Basin area (km2) |
13572 |
499 |
4141 |
1349 |
1077 |
508 |
7020 |
22284 |
3461 |
11396 |
4530 |
8174 |
4375 |
21454 |
1575 |
21956 |
1742 |
794 |
7208 |
3269 |
1482 |
| Improved pasture (%) |
2.02 |
0.22 |
2.48 |
0.31 |
0.10 |
0.88 |
1.37 |
3.47 |
1.43 |
13.58 |
0.76 |
2.69 |
1.49 |
5.72 |
0.31 |
5.73 |
0.34 |
1.35 |
9.35 |
0.62 |
3.46 |
| Cropping (%) |
1.37 |
0.00 |
1.77 |
2.43 |
7.88 |
3.02 |
3.14 |
0.99 |
0.05 |
0.48 |
0.04 |
0.09 |
0.00 |
1.86 |
0.00 |
0.43 |
0.00 |
0.00 |
0.50 |
0.04 |
0.00 |
| Horticulture (%) |
12.91 |
21.09 |
11.24 |
24.64 |
14.80 |
26.86 |
5.34 |
0.63 |
10.44 |
0.19 |
2.87 |
3.32 |
5.14 |
4.51 |
33.71 |
12.87 |
8.20 |
21.72 |
3.80 |
0.96 |
0.05 |
| Total agricultural land proportion (%) |
16.30 |
21.31 |
15.49 |
27.38 |
22.78 |
30.75 |
9.86 |
5.09 |
11.92 |
14.26 |
3.67 |
6.10 |
6.63 |
12.09 |
34.01 |
19.03 |
8.54 |
23.07 |
13.65 |
1.62 |
3.51 |
| Climate |
| Rain (mm/yr) |
922 |
1555 |
1055 |
1551 |
1846 |
1879 |
1334 |
1111 |
1517 |
980 |
1352 |
1079 |
1151 |
784 |
1156 |
903 |
1053 |
1329 |
876 |
1062 |
906 |
| Total evaporation (mm/yr) |
800 |
1000 |
862 |
1043 |
1105 |
1131 |
947 |
854 |
993 |
780 |
940 |
826 |
805 |
671 |
847 |
705 |
778 |
866 |
655 |
755 |
694 |
| Run off (mm/yr) |
129 |
555 |
199 |
509 |
742 |
752 |
390 |
257 |
525 |
201 |
413 |
254 |
347 |
118 |
309 |
199 |
277 |
464 |
221 |
307 |
212 |
| Carbon |
| Net primary production (tC/ha/yr) |
5.5 |
4.4 |
5.8 |
6.9 |
8.8 |
8.0 |
6.8 |
7.0 |
8.6 |
6.7 |
8.2 |
7.9 |
7.1 |
5.4 |
7.1 |
6.1 |
4.1 |
6.3 |
6.4 |
7.5 |
7.0 |
| Plant carbon (tC/ha) |
113.0 |
75.0 |
125.1 |
144.1 |
192.6 |
147.2 |
138.2 |
213.3 |
213.1 |
255.0 |
230.7 |
277.5 |
168.4 |
160.8 |
169.8 |
224.1 |
102.1 |
178.3 |
268.2 |
255.6 |
275.9 |
| Litter + soil carbon (tC/ha) |
103.4 |
50.9 |
147.1 |
177.8 |
256.4 |
195.6 |
161.4 |
208.8 |
206.5 |
235.3 |
256.5 |
289.4 |
162.2 |
159.7 |
145.5 |
189.9 |
86.6 |
202.0 |
235.5 |
240.6 |
288.1 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
2.79 |
0.55 |
2.53 |
1.13 |
4.46 |
2.85 |
1.74 |
0.67 |
0.93 |
1.47 |
0.31 |
0.48 |
0.29 |
1.03 |
1.24 |
0.62 |
0.69 |
1.31 |
0.73 |
0.40 |
0.08 |
| Nitrogen fixation (kg N/ha/yr) |
23.58 |
14.81 |
21.59 |
23.08 |
29.41 |
28.28 |
33.43 |
35.81 |
35.54 |
56.20 |
30.34 |
37.10 |
28.95 |
35.66 |
24.76 |
36.77 |
14.09 |
26.32 |
48.81 |
27.56 |
34.91 |
| Total nitrogen (kg N/ha) |
8868 |
3978 |
12610 |
14660 |
20900 |
16000 |
13610 |
17660 |
16450 |
19780 |
21120 |
24460 |
13570 |
13740 |
11970 |
15930 |
7189 |
16630 |
19890 |
20150 |
24560 |
| Mineral nitrogen (kg N/ha) |
103 |
75 |
130 |
161 |
226 |
213 |
167 |
226 |
192 |
180 |
234 |
285 |
181 |
155 |
172 |
185 |
115 |
209 |
193 |
203 |
196 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
57 |
35 |
55 |
52 |
61 |
55 |
59 |
68 |
68 |
78 |
68 |
77 |
65 |
69 |
65 |
74 |
45 |
58 |
85 |
78 |
81 |
| Nitrogen leached (kg N/ha/yr) |
9 |
11 |
9 |
13 |
19 |
16 |
13 |
12 |
17 |
13 |
15 |
13 |
12 |
9 |
12 |
11 |
8 |
12 |
12 |
13 |
11 |
| Nitrogen volatilised (kg N/ha/yr) |
3.68 |
2.96 |
3.86 |
4.62 |
5.85 |
5.35 |
4.57 |
4.68 |
5.76 |
4.49 |
5.46 |
5.30 |
4.71 |
3.60 |
4.70 |
4.08 |
2.74 |
4.17 |
4.25 |
5.03 |
4.65 |
| Phosphorus from fertiliser (kg P/ha/yr) |
0.59 |
0.35 |
0.32 |
0.17 |
0.67 |
1.66 |
0.86 |
0.71 |
0.65 |
1.87 |
0.53 |
0.80 |
0.40 |
0.99 |
1.05 |
0.80 |
0.40 |
1.15 |
1.15 |
0.42 |
0.38 |
| Total phosphorus (kg P/ha) |
1309 |
776 |
1702 |
2029 |
2855 |
2362 |
1948 |
2709 |
2464 |
2667 |
3026 |
3592 |
2104 |
1964 |
1974 |
2400 |
1228 |
2484 |
2810 |
2867 |
3139 |
| Dissolved mineral phosphorus (kg P/ha) |
18.4 |
13.9 |
23.7 |
29.6 |
41.6 |
39.6 |
30.1 |
40.6 |
34.8 |
29.9 |
43.2 |
51.3 |
33.0 |
26.8 |
32.1 |
32.2 |
21.3 |
38.1 |
33.0 |
37.3 |
34.8 |
| Phosphorus concentration (mg P/kg W) |
10.2 |
6.5 |
9.9 |
9.5 |
11.3 |
10.3 |
10.5 |
12.0 |
12.4 |
13.0 |
12.5 |
13.9 |
11.9 |
11.9 |
12.2 |
12.7 |
8.3 |
10.7 |
14.3 |
14.3 |
14.4 |
| Phosphorus leached (kg P/m2/yr) |
1.62 |
1.98 |
1.62 |
2.41 |
3.47 |
3.05 |
2.25 |
2.13 |
3.14 |
2.12 |
2.75 |
2.35 |
2.20 |
1.57 |
2.23 |
1.88 |
1.39 |
2.23 |
2.05 |
2.44 |
1.97 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
1267692 |
476644 |
46868 |
92042 |
3162 |
561570 |
1719721 |
143423 |
1028976 |
189596 |
533797 |
175415 |
2950924 |
37218 |
1125630 |
37449 |
21043 |
407591 |
88581 |
60453 |
| Sediment supply (t/ha/yr) |
0.93 |
1.18 |
0.42 |
0.87 |
0.24 |
0.83 |
0.78 |
0.47 |
0.90 |
0.45 |
0.67 |
0.48 |
1.40 |
0.27 |
0.52 |
0.25 |
0.43 |
0.57 |
0.33 |
0.40 |
| Proportion from hillslopes (%) |
54.26 |
57.86 |
20.81 |
52.91 |
49.17 |
41.88 |
24.55 |
7.05 |
29.67 |
6.53 |
14.53 |
15.73 |
33.42 |
10.70 |
21.46 |
6.54 |
12.34 |
13.88 |
4.72 |
14.32 |
| Proportion from bank erosion (%) |
26.07 |
24.52 |
53.78 |
40.72 |
35.21 |
41.33 |
43.64 |
64.65 |
29.48 |
69.70 |
46.64 |
40.00 |
20.35 |
30.35 |
28.47 |
53.04 |
20.93 |
26.04 |
27.69 |
19.47 |
| Proportion from gullies (%) |
19.67 |
17.62 |
25.41 |
6.36 |
15.62 |
16.79 |
31.81 |
28.30 |
40.84 |
23.77 |
38.83 |
44.27 |
46.23 |
58.95 |
50.07 |
40.42 |
66.73 |
60.08 |
67.59 |
66.21 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.07 |
0.19 |
0.00 |
0.25 |
0.00 |
0.13 |
0.07 |
0.08 |
0.13 |
0.09 |
0.03 |
0.15 |
0.33 |
0.32 |
0.08 |
0.09 |
0.00 |
0.10 |
0.18 |
0.10 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
37 |
35 |
10 |
16 |
5 |
32 |
198 |
101 |
65 |
332 |
56 |
161 |
630 |
111 |
211 |
323 |
3 |
27 |
20 |
44 |
| Sediment export to the coast (t/yr) |
247194 |
189138 |
20641 |
58498 |
2158 |
240825 |
683379 |
61591 |
345455 |
83255 |
224159 |
72363 |
743606 |
13915 |
233011 |
11226 |
8904 |
135530 |
34173 |
24362 |
| Specific sediment export to the coast (t/ha/yr) |
0.18 |
0.47 |
0.19 |
0.55 |
0.16 |
0.36 |
0.31 |
0.20 |
0.30 |
0.20 |
0.28 |
0.20 |
0.35 |
0.10 |
0.11 |
0.07 |
0.18 |
0.19 |
0.13 |
0.16 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.19 |
0.40 |
0.44 |
0.64 |
0.68 |
0.43 |
0.40 |
0.43 |
0.34 |
0.44 |
0.42 |
0.41 |
0.25 |
0.37 |
0.21 |
0.30 |
0.42 |
0.33 |
0.39 |
0.40 |
| River nutrients |
| Phosphorus from fine sediments (%) |
71 |
65 |
20 |
86 |
73 |
90 |
89 |
68 |
91 |
71 |
83 |
79 |
97 |
70 |
78 |
72 |
72 |
78 |
66 |
82 |
| Phosphorus from point sources (%) |
25 |
32 |
75 |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
11 |
0 |
0 |
9 |
0 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
4 |
3 |
5 |
14 |
27 |
9 |
11 |
32 |
9 |
29 |
17 |
21 |
3 |
30 |
11 |
28 |
28 |
13 |
34 |
18 |
| Phosphorus deposited on floodplain (%) |
25 |
41 |
11 |
14 |
4 |
30 |
28 |
14 |
39 |
13 |
19 |
23 |
49 |
23 |
27 |
35 |
7 |
30 |
21 |
27 |
| Phosphorus deposited in reservoirs (%) |
19 |
2 |
2 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
0 |
0 |
5 |
0 |
26 |
0 |
12 |
0 |
0 |
0 |
| Phosphorus delivered to estuaries (%) |
56 |
56 |
87 |
86 |
96 |
70 |
72 |
86 |
59 |
87 |
81 |
77 |
46 |
77 |
47 |
65 |
81 |
70 |
79 |
73 |
| Phosphorus - total basin export (t P/yr) |
685 |
265 |
93 |
46 |
3 |
235 |
624 |
54 |
319 |
71 |
176 |
60 |
891 |
15 |
344 |
10 |
7 |
161 |
30 |
23 |
| Phosphorus - export rate (kg P/ha/yr) |
0.50 |
0.64 |
0.67 |
0.42 |
0.06 |
0.33 |
0.28 |
0.15 |
0.28 |
0.16 |
0.22 |
0.13 |
0.42 |
0.09 |
0.16 |
0.05 |
0.09 |
0.23 |
0.09 |
0.15 |
| Phosphorus load - times pre-European (ratio) |
5.3 |
4.7 |
1.4 |
1.8 |
2.1 |
2.9 |
3.8 |
2.4 |
4.8 |
2.4 |
2.7 |
3.1 |
4.6 |
2.4 |
2.4 |
2.3 |
1.3 |
2.6 |
1.7 |
3.4 |
| Phosphorus - dissolved to total (ratio) |
17 |
16 |
47 |
40 |
56 |
21 |
20 |
40 |
13 |
41 |
20 |
29 |
9 |
33 |
26 |
35 |
35 |
20 |
33 |
18 |
| Nitrogen from sediments (%) |
69 |
78 |
24 |
71 |
43 |
75 |
67 |
34 |
76 |
33 |
55 |
50 |
83 |
36 |
55 |
40 |
41 |
57 |
29 |
48 |
| Nitrogen from point sources (%) |
15 |
8 |
48 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
11 |
0 |
0 |
2 |
0 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
16 |
13 |
28 |
29 |
57 |
25 |
33 |
66 |
24 |
67 |
45 |
50 |
17 |
64 |
34 |
60 |
59 |
41 |
71 |
52 |
| Nitrogen deposited on floodplain (%) |
18 |
39 |
5 |
11 |
4 |
26 |
21 |
7 |
33 |
6 |
12 |
16 |
41 |
11 |
17 |
19 |
4 |
20 |
8 |
15 |
| Nitrogen deposited in reservoirs (%) |
27 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
6 |
0 |
19 |
0 |
6 |
0 |
0 |
0 |
| Nitrogen - denitrified (%) |
3 |
2 |
2 |
1 |
1 |
2 |
3 |
3 |
3 |
4 |
4 |
3 |
3 |
3 |
6 |
5 |
2 |
4 |
4 |
4 |
| Nitrogen delivered to estuary (%) |
52 |
59 |
91 |
88 |
96 |
73 |
76 |
90 |
63 |
91 |
84 |
81 |
50 |
85 |
59 |
76 |
88 |
77 |
88 |
81 |
| Nitrogen - total export (t/yr) |
3162 |
1251 |
397 |
499 |
35 |
1941 |
4799 |
599 |
2944 |
686 |
1546 |
571 |
4444 |
162 |
3234 |
114 |
82 |
1256 |
348 |
205 |
| Nitrogen - export rate (kg/ha/yr) |
2.33 |
3.01 |
2.89 |
4.58 |
0.64 |
2.77 |
2.16 |
1.69 |
2.59 |
1.52 |
1.89 |
1.29 |
2.07 |
1.02 |
1.47 |
0.64 |
1.00 |
1.75 |
1.03 |
1.35 |
| Nitrogen load - times pre-European (ratio) |
2.7 |
3.2 |
1.5 |
1.4 |
1.5 |
2.3 |
2.0 |
1.4 |
3.1 |
1.3 |
1.7 |
1.6 |
2.7 |
1.4 |
1.7 |
1.4 |
1.0 |
1.7 |
1.2 |
1.7 |
| Nitrogen - dissolved to total (ratio) |
37 |
33 |
75 |
55 |
59 |
37 |
49 |
71 |
31 |
76 |
59 |
59 |
33 |
70 |
59 |
68 |
68 |
56 |
78 |
57 |
| Context |
| Basin number |
218 |
219 |
220 |
221 |
222 |
223 |
224 |
225 |
226 |
227 |
228 |
229 |
230 |
231 |
232 |
233 |
234 |
235 |
236 |
237 |
238 |
| Basin name |
Tuross River |
Bega River |
Towamba River |
East Gippsland |
Snowy River |
Tambo River |
Mitchell River |
Thomson River |
Latrobe River |
South gippsland |
Bunyip River |
Yarra River |
Maribyrnong River |
Werribee River |
Moorabool River |
Barwon River |
Lake Corangamite |
Otway Coast |
Hopkins River |
Portland Coast |
Glenelg River |
| Basin area (km2) |
2166 |
2838 |
2193 |
5648 |
15772 |
4217 |
4866 |
6413 |
4681 |
6777 |
4077 |
4118 |
1456 |
1970 |
2229 |
3798 |
4087 |
3879 |
10079 |
3957 |
12128 |
| Improved pasture (%) |
6.43 |
2.36 |
0.72 |
0.50 |
9.26 |
4.02 |
3.29 |
6.94 |
22.11 |
33.89 |
15.58 |
4.97 |
18.41 |
12.98 |
28.92 |
26.60 |
34.43 |
28.46 |
34.99 |
41.45 |
38.51 |
| Cropping (%) |
0.37 |
0.19 |
0.00 |
0.00 |
0.46 |
0.00 |
0.19 |
0.26 |
0.39 |
0.13 |
0.31 |
0.02 |
1.00 |
5.66 |
5.28 |
4.20 |
8.08 |
0.20 |
6.37 |
1.14 |
1.80 |
| Horticulture (%) |
0.73 |
6.52 |
0.89 |
0.95 |
1.57 |
4.81 |
1.29 |
0.10 |
11.36 |
0.72 |
28.21 |
25.41 |
20.42 |
13.50 |
12.29 |
6.90 |
1.73 |
2.55 |
6.10 |
9.87 |
0.23 |
| Total agricultural land proportion (%) |
7.53 |
9.07 |
1.61 |
1.45 |
11.28 |
8.82 |
4.77 |
7.30 |
33.86 |
34.74 |
44.09 |
30.41 |
39.83 |
32.14 |
46.49 |
37.71 |
44.24 |
31.21 |
47.46 |
52.46 |
40.54 |
| Climate |
| Rain (mm/yr) |
887 |
871 |
879 |
960 |
821 |
774 |
984 |
873 |
958 |
898 |
908 |
1049 |
681 |
641 |
610 |
666 |
640 |
1019 |
644 |
726 |
664 |
| Total evaporation (mm/yr) |
681 |
672 |
660 |
662 |
567 |
571 |
587 |
555 |
576 |
546 |
562 |
588 |
466 |
464 |
457 |
452 |
426 |
534 |
432 |
441 |
410 |
| Run off (mm/yr) |
207 |
204 |
220 |
298 |
253 |
203 |
397 |
327 |
387 |
354 |
351 |
462 |
214 |
179 |
153 |
214 |
217 |
486 |
212 |
285 |
256 |
| Carbon |
| Net primary production (tC/ha/yr) |
6.9 |
6.7 |
6.9 |
7.9 |
5.8 |
6.9 |
6.7 |
6.5 |
6.6 |
6.0 |
5.2 |
5.9 |
3.9 |
4.2 |
3.9 |
4.0 |
3.6 |
5.8 |
3.7 |
4.2 |
3.9 |
| Plant carbon (tC/ha) |
295.7 |
275.0 |
282.6 |
324.3 |
348.4 |
347.5 |
423.5 |
369.0 |
312.0 |
256.4 |
205.9 |
280.1 |
193.2 |
203.0 |
177.9 |
170.4 |
154.5 |
249.3 |
163.9 |
173.2 |
166.7 |
| Litter + soil carbon (tC/ha) |
310.4 |
295.9 |
284.4 |
322.1 |
368.0 |
338.2 |
420.2 |
358.3 |
335.1 |
234.1 |
215.8 |
298.3 |
221.7 |
209.7 |
175.3 |
158.6 |
150.3 |
214.1 |
160.0 |
154.4 |
164.7 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
0.47 |
1.58 |
0.24 |
0.03 |
0.25 |
0.08 |
0.14 |
1.41 |
2.04 |
1.72 |
2.65 |
0.66 |
0.23 |
1.92 |
1.81 |
1.42 |
2.33 |
3.04 |
1.66 |
0.89 |
0.57 |
| Nitrogen fixation (kg N/ha/yr) |
47.08 |
30.65 |
25.67 |
28.25 |
44.33 |
23.88 |
22.40 |
33.67 |
45.20 |
48.82 |
17.34 |
19.79 |
41.76 |
20.96 |
49.58 |
26.82 |
19.64 |
19.48 |
29.55 |
52.04 |
44.14 |
| Total nitrogen (kg N/ha) |
26580 |
25280 |
24030 |
27500 |
31380 |
29040 |
35440 |
30540 |
28820 |
20230 |
18620 |
25370 |
19470 |
18180 |
15160 |
13620 |
13020 |
17750 |
13840 |
13380 |
14360 |
| Mineral nitrogen (kg N/ha) |
211 |
193 |
184 |
276 |
212 |
204 |
235 |
226 |
255 |
232 |
162 |
201 |
161 |
134 |
127 |
116 |
119 |
158 |
117 |
142 |
153 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
87 |
81 |
82 |
91 |
88 |
93 |
87 |
95 |
97 |
98 |
72 |
77 |
85 |
79 |
90 |
80 |
76 |
83 |
87 |
96 |
97 |
| Nitrogen leached (kg N/ha/yr) |
12 |
11 |
11 |
13 |
11 |
11 |
14 |
13 |
14 |
14 |
11 |
13 |
9 |
9 |
9 |
9 |
9 |
14 |
10 |
12 |
11 |
| Nitrogen volatilised (kg N/ha/yr) |
4.60 |
4.49 |
4.61 |
5.24 |
3.86 |
4.57 |
4.48 |
4.36 |
4.43 |
4.02 |
3.46 |
3.96 |
2.63 |
2.78 |
2.60 |
2.64 |
2.40 |
3.86 |
2.46 |
2.77 |
2.61 |
| Phosphorus from fertiliser (kg P/ha/yr) |
0.65 |
1.30 |
0.33 |
0.06 |
0.58 |
0.47 |
0.35 |
1.92 |
3.85 |
4.74 |
3.77 |
0.94 |
0.84 |
1.52 |
2.28 |
2.29 |
4.06 |
4.35 |
3.89 |
4.39 |
2.66 |
| Total phosphorus (kg P/ha) |
3352 |
3197 |
3096 |
3912 |
3833 |
3747 |
4541 |
4027 |
3929 |
3095 |
2550 |
3326 |
2390 |
2327 |
1944 |
1850 |
1850 |
2583 |
1894 |
1932 |
2009 |
| Dissolved mineral phosphorus (kg P/ha) |
35.7 |
35.3 |
33.8 |
50.7 |
35.6 |
37.9 |
43.6 |
41.4 |
47.5 |
43.3 |
32.7 |
37.7 |
25.3 |
24.5 |
20.0 |
21.0 |
24.1 |
32.1 |
22.3 |
24.2 |
24.8 |
| Phosphorus concentration (mg P/kg W) |
14.7 |
14.7 |
15.1 |
16.8 |
14.7 |
17.2 |
16.2 |
17.2 |
17.5 |
17.5 |
14.5 |
14.5 |
13.5 |
14.5 |
14.4 |
14.6 |
15.1 |
17.0 |
16.0 |
16.4 |
16.0 |
| Phosphorus leached (kg P/m2/yr) |
2.05 |
1.97 |
1.94 |
2.47 |
1.90 |
1.99 |
2.50 |
2.41 |
2.61 |
2.57 |
2.12 |
2.46 |
1.42 |
1.59 |
1.48 |
1.62 |
1.76 |
2.72 |
1.75 |
1.97 |
1.80 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
70126 |
125308 |
67504 |
64810 |
813701 |
59536 |
70209 |
114798 |
123369 |
104425 |
64453 |
133746 |
75049 |
53505 |
71993 |
114202 |
53076 |
54651 |
444368 |
63559 |
700985 |
| Sediment supply (t/ha/yr) |
0.37 |
0.50 |
0.40 |
0.13 |
0.53 |
0.14 |
0.15 |
0.18 |
0.24 |
0.22 |
0.24 |
0.33 |
0.52 |
0.29 |
0.37 |
0.35 |
0.26 |
0.18 |
0.50 |
0.18 |
0.60 |
| Proportion from hillslopes (%) |
6.54 |
8.52 |
4.22 |
6.05 |
20.58 |
9.23 |
11.11 |
6.08 |
5.93 |
15.23 |
6.33 |
2.78 |
8.09 |
23.10 |
12.47 |
7.49 |
7.91 |
11.30 |
2.86 |
4.30 |
2.20 |
| Proportion from bank erosion (%) |
21.59 |
30.54 |
29.43 |
47.37 |
26.34 |
59.12 |
85.42 |
80.88 |
92.44 |
84.77 |
82.66 |
78.25 |
57.09 |
45.98 |
39.16 |
59.40 |
40.50 |
82.21 |
43.97 |
78.83 |
29.92 |
| Proportion from gullies (%) |
71.87 |
60.94 |
66.35 |
46.57 |
53.08 |
31.65 |
3.47 |
13.04 |
1.63 |
0.00 |
11.02 |
18.97 |
34.82 |
30.92 |
48.37 |
33.11 |
51.59 |
6.48 |
53.17 |
16.87 |
67.88 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.13 |
0.12 |
0.04 |
0.01 |
0.04 |
0.02 |
0.02 |
0.01 |
0.08 |
0.01 |
0.00 |
0.00 |
0.00 |
0.01 |
0.04 |
0.13 |
0.12 |
0.09 |
0.22 |
0.04 |
0.38 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
41 |
191 |
48 |
36 |
16 |
19 |
3 |
108 |
5 |
15 |
>1,000 |
7 |
10 |
9 |
70 |
35 |
53 |
16 |
198 |
>1,000 |
309 |
| Sediment export to the coast (t/yr) |
23959 |
40908 |
26302 |
25818 |
303309 |
18114 |
25330 |
23583 |
31953 |
41644 |
21882 |
37091 |
26644 |
8885 |
16766 |
23601 |
0 |
22950 |
64382 |
19143 |
147721 |
| Specific sediment export to the coast (t/ha/yr) |
0.13 |
0.16 |
0.15 |
0.05 |
0.20 |
0.04 |
0.05 |
0.04 |
0.06 |
0.09 |
0.08 |
0.09 |
0.19 |
0.05 |
0.09 |
0.07 |
0.00 |
0.08 |
0.07 |
0.05 |
0.13 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.34 |
0.33 |
0.39 |
0.40 |
0.37 |
0.30 |
0.36 |
0.21 |
0.26 |
0.40 |
0.34 |
0.28 |
0.36 |
0.17 |
0.23 |
0.21 |
0.00 |
0.42 |
0.14 |
0.30 |
0.21 |
| River nutrients |
| Phosphorus from fine sediments (%) |
74 |
79 |
72 |
40 |
85 |
50 |
45 |
47 |
42 |
53 |
56 |
62 |
85 |
73 |
78 |
74 |
67 |
51 |
79 |
57 |
81 |
| Phosphorus from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
26 |
21 |
28 |
60 |
15 |
50 |
55 |
53 |
51 |
47 |
44 |
38 |
15 |
27 |
22 |
26 |
33 |
49 |
21 |
43 |
19 |
| Phosphorus deposited on floodplain (%) |
31 |
30 |
22 |
15 |
35 |
42 |
24 |
37 |
81 |
22 |
27 |
35 |
35 |
30 |
33 |
60 |
54 |
20 |
63 |
30 |
51 |
| Phosphorus deposited in reservoirs (%) |
0 |
6 |
0 |
0 |
0 |
0 |
0 |
15 |
3 |
0 |
0 |
0 |
0 |
35 |
10 |
0 |
0 |
0 |
0 |
0 |
3 |
| Phosphorus delivered to estuaries (%) |
69 |
64 |
78 |
85 |
65 |
58 |
76 |
48 |
16 |
78 |
73 |
65 |
65 |
35 |
57 |
40 |
46 |
80 |
37 |
70 |
46 |
| Phosphorus - total basin export (t P/yr) |
21 |
30 |
19 |
35 |
250 |
19 |
33 |
28 |
8 |
40 |
22 |
35 |
17 |
8 |
15 |
17 |
10 |
27 |
55 |
22 |
102 |
| Phosphorus - export rate (kg P/ha/yr) |
0.10 |
0.10 |
0.09 |
0.06 |
0.16 |
0.33 |
0.03 |
0.05 |
0.01 |
0.06 |
0.05 |
0.06 |
0.12 |
0.04 |
0.14 |
0.03 |
0.03 |
0.07 |
0.05 |
0.06 |
0.07 |
| Phosphorus load - times pre-European (ratio) |
2.2 |
2.7 |
2.5 |
1.3 |
2.1 |
1.3 |
1.0 |
1.1 |
1.3 |
1.5 |
1.3 |
1.3 |
2.0 |
1.1 |
1.6 |
1.9 |
1.9 |
1.5 |
2.3 |
1.8 |
2.1 |
| Phosphorus - dissolved to total (ratio) |
20 |
19 |
19 |
55 |
30 |
51 |
63 |
58 |
43 |
38 |
43 |
45 |
22 |
23 |
22 |
28 |
23 |
44 |
20 |
31 |
21 |
| Nitrogen from sediments (%) |
35 |
44 |
36 |
14 |
54 |
21 |
19 |
19 |
16 |
27 |
26 |
25 |
32 |
47 |
44 |
41 |
33 |
28 |
44 |
20 |
44 |
| Nitrogen from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
10 |
0 |
0 |
7 |
38 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
65 |
56 |
64 |
86 |
46 |
79 |
81 |
81 |
74 |
73 |
74 |
68 |
30 |
53 |
56 |
59 |
67 |
72 |
56 |
80 |
56 |
| Nitrogen deposited on floodplain (%) |
12 |
15 |
9 |
3 |
20 |
11 |
7 |
8 |
14 |
8 |
10 |
11 |
12 |
16 |
17 |
28 |
22 |
7 |
32 |
8 |
24 |
| Nitrogen deposited in reservoirs (%) |
0 |
3 |
0 |
0 |
0 |
0 |
0 |
3 |
1 |
0 |
0 |
0 |
0 |
20 |
4 |
0 |
0 |
0 |
0 |
0 |
1 |
| Nitrogen - denitrified (%) |
7 |
4 |
5 |
5 |
5 |
12 |
9 |
9 |
23 |
6 |
5 |
5 |
10 |
9 |
9 |
10 |
13 |
4 |
11 |
8 |
10 |
| Nitrogen delivered to estuary (%) |
81 |
78 |
86 |
91 |
75 |
76 |
85 |
80 |
62 |
86 |
86 |
84 |
78 |
56 |
71 |
62 |
65 |
89 |
57 |
84 |
65 |
| Nitrogen - total export (t/yr) |
229 |
305 |
202 |
571 |
2230 |
347 |
552 |
670 |
457 |
615 |
296 |
541 |
271 |
136 |
187 |
245 |
151 |
408 |
672 |
337 |
1174 |
| Nitrogen - export rate (kg/ha/yr) |
1.05 |
1.06 |
0.90 |
1.01 |
1.42 |
5.86 |
0.48 |
1.13 |
0.54 |
0.93 |
0.75 |
0.97 |
1.87 |
0.64 |
1.84 |
0.47 |
0.38 |
1.05 |
0.67 |
0.83 |
0.86 |
| Nitrogen load - times pre-European (ratio) |
1.5 |
1.5 |
1.4 |
1.1 |
1.6 |
1.1 |
1.0 |
1.1 |
1.2 |
1.4 |
1.2 |
1.1 |
1.7 |
1.4 |
2.0 |
1.5 |
1.8 |
1.2 |
1.9 |
1.5 |
1.7 |
| Nitrogen - dissolved to total (ratio) |
69 |
64 |
67 |
89 |
59 |
87 |
90 |
90 |
89 |
78 |
84 |
86 |
68 |
70 |
66 |
68 |
71 |
75 |
64 |
81 |
65 |
| Context |
| Basin number |
239 |
301 |
302 |
303 |
304 |
305 |
306 |
307 |
308 |
309 |
310 |
311 |
312 |
313 |
314 |
315 |
316 |
317 |
318 |
319 |
401 |
| Basin name |
Millicent Coast |
Flinders Cape Barren Island |
East Coast |
Coal River |
Derwent River |
Kingston Coast |
Huon River |
South-West Coast |
Gordon River |
King-Henty Rivers |
Pieman River |
Sandy Cape Coast |
Arthur River |
King Island |
Smithton-Burnie Coast |
Forth River |
Mersey River |
Rubicon River |
Tamar River |
Piper-Ringarooma Rivers |
Upper Murray River |
| Basin area (km2) |
34346 |
2005 |
6945 |
684 |
9832 |
746 |
3008 |
5488 |
5917 |
1796 |
4156 |
874 |
2498 |
1086 |
4660 |
1129 |
1968 |
678 |
11344 |
3549 |
15338 |
| Improved pasture (%) |
41.34 |
12.18 |
9.93 |
17.56 |
11.70 |
8.51 |
2.26 |
0.16 |
0.00 |
0.11 |
0.08 |
0.60 |
0.93 |
34.18 |
18.40 |
2.65 |
19.04 |
15.39 |
21.51 |
15.57 |
7.60 |
| Cropping (%) |
9.00 |
0.14 |
0.54 |
0.98 |
0.65 |
0.16 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.02 |
0.00 |
0.34 |
0.43 |
0.98 |
1.16 |
2.35 |
0.10 |
0.67 |
| Horticulture (%) |
2.67 |
0.05 |
0.68 |
5.61 |
1.61 |
11.64 |
5.59 |
0.57 |
0.00 |
0.11 |
1.14 |
0.00 |
1.23 |
0.44 |
9.54 |
13.31 |
7.66 |
12.50 |
2.56 |
3.67 |
0.11 |
| Total agricultural land proportion (%) |
53.01 |
12.37 |
11.15 |
24.15 |
13.96 |
20.31 |
7.85 |
0.73 |
0.00 |
0.21 |
1.22 |
0.60 |
2.18 |
34.62 |
28.29 |
16.39 |
27.68 |
29.04 |
26.42 |
19.34 |
8.39 |
| Climate |
| Rain (mm/yr) |
533 |
703 |
742 |
560 |
1005 |
874 |
1497 |
2035 |
2325 |
2509 |
2148 |
1627 |
1694 |
926 |
1250 |
1905 |
1407 |
881 |
803 |
918 |
1119 |
| Total evaporation (mm/yr) |
352 |
474 |
492 |
406 |
469 |
507 |
584 |
633 |
663 |
688 |
658 |
598 |
607 |
472 |
541 |
624 |
571 |
480 |
459 |
505 |
615 |
| Run off (mm/yr) |
186 |
229 |
250 |
154 |
537 |
367 |
914 |
1401 |
1662 |
1821 |
1490 |
1029 |
1087 |
454 |
713 |
1287 |
850 |
411 |
347 |
416 |
505 |
| Carbon |
| Net primary production (tC/ha/yr) |
2.8 |
4.1 |
5.3 |
3.8 |
4.3 |
4.9 |
4.6 |
3.5 |
4.1 |
4.3 |
4.4 |
4.3 |
5.5 |
5.1 |
6.1 |
5.7 |
6.3 |
6.4 |
5.3 |
6.1 |
6.2 |
| Plant carbon (tC/ha) |
102.6 |
172.8 |
281.0 |
226.6 |
342.0 |
278.9 |
320.6 |
228.4 |
293.8 |
279.9 |
310.2 |
228.4 |
335.1 |
219.2 |
334.8 |
445.2 |
430.5 |
334.4 |
350.3 |
315.5 |
378.7 |
| Litter + soil carbon (tC/ha) |
115.1 |
128.4 |
262.5 |
201.1 |
357.4 |
258.0 |
350.9 |
242.3 |
367.0 |
483.3 |
452.5 |
200.2 |
402.0 |
146.3 |
368.2 |
548.2 |
516.1 |
318.9 |
357.2 |
318.6 |
370.0 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
1.03 |
0.04 |
0.44 |
0.33 |
0.61 |
0.50 |
0.11 |
0.01 |
0.00 |
0.19 |
0.07 |
0.04 |
0.12 |
0.43 |
2.77 |
1.53 |
3.53 |
4.44 |
1.37 |
1.15 |
0.34 |
| Nitrogen fixation (kg N/ha/yr) |
65.48 |
13.78 |
40.11 |
19.62 |
15.49 |
17.60 |
20.77 |
12.10 |
13.60 |
14.43 |
14.65 |
16.20 |
21.29 |
16.97 |
67.17 |
24.23 |
82.70 |
58.71 |
61.11 |
28.12 |
31.91 |
| Total nitrogen (kg N/ha) |
9954 |
11020 |
22610 |
17280 |
29500 |
21420 |
26620 |
16680 |
25960 |
36330 |
34890 |
15570 |
33010 |
12350 |
31850 |
42640 |
43300 |
27940 |
30900 |
27610 |
31000 |
| Mineral nitrogen (kg N/ha) |
149 |
123 |
210 |
112 |
188 |
132 |
173 |
159 |
206 |
240 |
249 |
171 |
318 |
156 |
348 |
268 |
359 |
254 |
250 |
226 |
211 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
114 |
70 |
95 |
81 |
72 |
76 |
64 |
43 |
45 |
47 |
50 |
55 |
69 |
82 |
105 |
71 |
110 |
118 |
114 |
95 |
81 |
| Nitrogen leached (kg N/ha/yr) |
12 |
9 |
11 |
7 |
11 |
10 |
14 |
16 |
19 |
18 |
17 |
16 |
18 |
14 |
21 |
20 |
21 |
17 |
14 |
14 |
14 |
| Nitrogen volatilised (kg N/ha/yr) |
1.89 |
2.76 |
3.55 |
2.56 |
2.88 |
3.28 |
3.07 |
2.34 |
2.72 |
2.89 |
2.93 |
2.88 |
3.70 |
3.39 |
4.09 |
3.79 |
4.19 |
4.26 |
3.56 |
4.06 |
4.15 |
| Phosphorus from fertiliser (kg P/ha/yr) |
2.45 |
1.05 |
1.60 |
1.16 |
1.96 |
1.44 |
0.26 |
0.02 |
0.00 |
0.37 |
0.13 |
0.11 |
0.33 |
5.69 |
6.11 |
1.88 |
6.28 |
8.56 |
3.73 |
3.52 |
0.77 |
| Total phosphorus (kg P/ha) |
1433 |
1764 |
3116 |
2233 |
3733 |
2710 |
3345 |
2428 |
3466 |
4283 |
4258 |
2359 |
4489 |
2211 |
4537 |
5264 |
5516 |
3972 |
4051 |
3787 |
3975 |
| Dissolved mineral phosphorus (kg P/ha) |
19.8 |
23.5 |
36.1 |
20.3 |
35.9 |
25.2 |
31.1 |
29.0 |
37.6 |
44.0 |
45.6 |
31.0 |
58.3 |
33.3 |
60.8 |
50.0 |
59.8 |
48.6 |
42.1 |
43.3 |
37.8 |
| Phosphorus concentration (mg P/kg W) |
15.1 |
13.3 |
16.3 |
14.8 |
14.2 |
14.5 |
11.3 |
7.7 |
8.2 |
8.6 |
9.2 |
10.1 |
12.7 |
17.5 |
18.2 |
13.3 |
18.2 |
22.4 |
18.6 |
18.4 |
14.4 |
| Phosphorus leached (kg P/m2/yr) |
1.54 |
1.65 |
1.90 |
1.31 |
2.07 |
1.91 |
2.46 |
2.82 |
3.40 |
3.33 |
3.12 |
2.96 |
3.24 |
3.10 |
3.56 |
3.64 |
3.57 |
3.26 |
2.41 |
2.68 |
2.57 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
57265 |
87713 |
32163 |
351478 |
1099 |
112375 |
193822 |
276625 |
8337 |
37039 |
5570 |
38779 |
70736 |
16957 |
106546 |
15023 |
463606 |
85848 |
726767 |
| Sediment supply (t/ha/yr) |
0.16 |
0.20 |
0.55 |
0.37 |
0.09 |
0.38 |
0.55 |
0.52 |
0.05 |
0.09 |
0.31 |
0.16 |
0.21 |
0.15 |
0.56 |
0.34 |
0.42 |
0.28 |
0.45 |
| Proportion from hillslopes (%) |
3.89 |
24.46 |
34.08 |
13.13 |
31.92 |
6.99 |
4.63 |
1.93 |
24.00 |
12.04 |
0.62 |
4.19 |
6.09 |
12.18 |
5.89 |
2.62 |
8.74 |
4.56 |
22.93 |
| Proportion from bank erosion (%) |
81.53 |
35.29 |
22.78 |
64.98 |
36.04 |
82.20 |
95.33 |
94.78 |
75.74 |
86.21 |
99.38 |
93.52 |
86.23 |
49.40 |
56.12 |
36.62 |
70.30 |
48.75 |
45.49 |
| Proportion from gullies (%) |
14.58 |
40.24 |
43.14 |
21.89 |
32.04 |
10.81 |
0.04 |
3.29 |
0.26 |
1.75 |
0.00 |
2.29 |
7.68 |
38.41 |
37.99 |
60.75 |
20.96 |
46.68 |
31.58 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.06 |
0.01 |
0.09 |
0.03 |
0.00 |
0.00 |
0.03 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.07 |
0.00 |
0.03 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
77 |
5 |
11 |
47 |
3 |
16 |
9 |
186 |
96 |
138 |
102 |
36 |
27 |
1 |
6 |
12 |
6 |
7 |
8 |
| Sediment export to the coast (t/yr) |
0 |
44400 |
15544 |
149437 |
727 |
57413 |
99086 |
127593 |
4903 |
16698 |
2712 |
19726 |
34941 |
6339 |
51007 |
7020 |
195373 |
39746 |
2783 |
| Specific sediment export to the coast (t/ha/yr) |
0.00 |
0.10 |
0.27 |
0.16 |
0.06 |
0.19 |
0.28 |
0.24 |
0.03 |
0.04 |
0.15 |
0.08 |
0.10 |
0.06 |
0.27 |
0.16 |
0.18 |
0.13 |
0.00 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.00 |
0.51 |
0.48 |
0.43 |
0.66 |
0.51 |
0.51 |
0.46 |
0.59 |
0.45 |
0.49 |
0.51 |
0.49 |
0.37 |
0.48 |
0.47 |
0.42 |
0.46 |
0.00 |
| River nutrients |
| Phosphorus from fine sediments (%) |
54 |
67 |
89 |
68 |
41 |
73 |
77 |
69 |
57 |
46 |
55 |
46 |
48 |
52 |
63 |
58 |
53 |
47 |
78 |
| Phosphorus from point sources (%) |
0 |
0 |
0 |
12 |
0 |
0 |
0 |
0 |
0 |
6 |
0 |
0 |
0 |
0 |
11 |
0 |
31 |
18 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
46 |
33 |
11 |
20 |
59 |
27 |
23 |
31 |
43 |
49 |
45 |
54 |
52 |
48 |
26 |
42 |
17 |
35 |
22 |
| Phosphorus deposited on floodplain (%) |
48 |
13 |
26 |
7 |
0 |
1 |
1 |
4 |
4 |
0 |
1 |
1 |
2 |
0 |
3 |
5 |
11 |
6 |
11 |
| Phosphorus deposited in reservoirs (%) |
0 |
0 |
0 |
9 |
0 |
0 |
0 |
2 |
0 |
1 |
0 |
0 |
0 |
6 |
1 |
0 |
1 |
0 |
71 |
| Phosphorus delivered to estuaries (%) |
52 |
87 |
74 |
85 |
100 |
99 |
99 |
94 |
96 |
99 |
99 |
99 |
98 |
94 |
96 |
95 |
88 |
94 |
18 |
| Phosphorus - total basin export (t P/yr) |
14 |
46 |
11 |
169 |
1 |
52 |
90 |
117 |
24 |
49 |
3 |
30 |
47 |
16 |
49 |
6 |
277 |
45 |
70 |
| Phosphorus - export rate (kg P/ha/yr) |
0.00 |
0.07 |
0.15 |
0.17 |
0.02 |
0.15 |
0.16 |
0.21 |
0.13 |
0.12 |
0.03 |
0.12 |
0.11 |
0.14 |
0.25 |
0.10 |
0.24 |
0.13 |
0.05 |
| Phosphorus load - times pre-European (ratio) |
1.7 |
1.4 |
4.4 |
1.4 |
1.3 |
1.7 |
1.3 |
0.8 |
2.1 |
1.5 |
1.9 |
1.3 |
1.4 |
0.6 |
0.8 |
1.8 |
1.6 |
1.9 |
1.2 |
| Phosphorus - dissolved to total (ratio) |
24 |
42 |
10 |
59 |
63 |
72 |
68 |
75 |
74 |
97 |
72 |
89 |
69 |
93 |
73 |
40 |
37 |
48 |
41 |
| Nitrogen from sediments (%) |
17 |
35 |
74 |
43 |
23 |
37 |
39 |
29 |
20 |
17 |
19 |
17 |
15 |
18 |
29 |
21 |
33 |
25 |
51 |
| Nitrogen from point sources (%) |
0 |
0 |
0 |
7 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
5 |
0 |
4 |
0 |
14 |
0 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
83 |
65 |
26 |
50 |
77 |
63 |
61 |
71 |
80 |
83 |
81 |
83 |
80 |
82 |
66 |
79 |
53 |
75 |
49 |
| Nitrogen deposited on floodplain (%) |
10 |
6 |
20 |
5 |
0 |
1 |
1 |
2 |
2 |
0 |
1 |
0 |
1 |
0 |
1 |
2 |
7 |
3 |
6 |
| Nitrogen deposited in reservoirs (%) |
0 |
0 |
0 |
6 |
0 |
0 |
0 |
5 |
0 |
8 |
0 |
0 |
0 |
9 |
2 |
0 |
1 |
0 |
42 |
| Nitrogen - denitrified (%) |
16 |
2 |
1 |
1 |
1 |
1 |
1 |
2 |
4 |
1 |
0 |
1 |
1 |
1 |
1 |
1 |
2 |
2 |
2 |
| Nitrogen delivered to estuary (%) |
74 |
92 |
79 |
88 |
99 |
99 |
98 |
91 |
94 |
91 |
99 |
99 |
98 |
90 |
96 |
97 |
91 |
95 |
51 |
| Nitrogen - total export (t/yr) |
301 |
565 |
105 |
1435 |
15 |
478 |
750 |
1075 |
280 |
581 |
32 |
421 |
715 |
189 |
469 |
80 |
2182 |
443 |
1920 |
| Nitrogen - export rate (kg/ha/yr) |
0.10 |
0.82 |
1.50 |
1.47 |
0.36 |
1.42 |
1.37 |
1.92 |
1.55 |
1.38 |
0.37 |
1.68 |
1.60 |
1.68 |
2.34 |
1.21 |
1.92 |
1.24 |
1.32 |
| Nitrogen load - times pre-European (ratio) |
2.0 |
1.3 |
2.7 |
1.2 |
1.1 |
1.3 |
1.2 |
0.9 |
1.2 |
1.1 |
1.2 |
1.1 |
1.3 |
0.9 |
0.9 |
1.4 |
1.5 |
1.2 |
1.2 |
| Nitrogen - dissolved to total (ratio) |
83 |
65 |
27 |
72 |
77 |
72 |
65 |
87 |
82 |
89 |
82 |
81 |
82 |
90 |
80 |
77 |
66 |
75 |
70 |
| Context |
| Basin number |
402 |
403 |
404 |
405 |
406 |
407 |
408 |
409 |
410 |
411 |
412 |
413 |
414 |
415 |
416 |
417 |
418 |
419 |
420 |
421 |
422 |
| Basin name |
Kiewa River |
Ovens River |
Broken River |
Goulburn River |
Campaspe River |
Loddon River |
Avoca River |
Murray-Riverina |
Murrumbidgee River |
Lake George |
Lachlan River |
Benanee |
Mallee |
Wimmera-Avon Rivers |
Border River |
Moonie River |
Gwydir River |
Namoi River |
Castlereagh River |
Macquarie-Bogan Rivers |
Condamine-Culgoa Rivers |
| Basin area (km2) |
1916 |
7986 |
7091 |
16853 |
4057 |
15648 |
14192 |
15055 |
81646 |
945 |
90863 |
21349 |
41494 |
30369 |
48034 |
14335 |
26588 |
42004 |
17411 |
74803 |
162602 |
| Improved pasture (%) |
13.87 |
13.85 |
31.60 |
22.75 |
29.68 |
28.57 |
16.52 |
11.13 |
9.44 |
13.98 |
10.57 |
0.28 |
6.49 |
14.59 |
3.58 |
1.67 |
4.72 |
5.89 |
6.91 |
10.60 |
3.22 |
| Cropping (%) |
0.00 |
3.26 |
11.33 |
3.26 |
7.90 |
13.22 |
30.41 |
17.34 |
14.99 |
1.36 |
11.72 |
1.61 |
17.04 |
28.38 |
16.10 |
12.58 |
17.24 |
11.49 |
12.77 |
13.98 |
6.09 |
| Horticulture (%) |
0.40 |
1.01 |
3.38 |
2.79 |
4.73 |
4.31 |
7.31 |
1.67 |
1.48 |
0.06 |
0.62 |
0.30 |
1.74 |
9.81 |
2.57 |
0.33 |
3.70 |
2.49 |
0.32 |
1.18 |
1.05 |
| Total agricultural land proportion (%) |
14.26 |
18.12 |
46.30 |
28.79 |
42.31 |
46.10 |
54.24 |
30.14 |
25.91 |
15.40 |
22.91 |
2.19 |
25.27 |
52.78 |
22.24 |
14.58 |
25.67 |
19.87 |
19.99 |
25.76 |
10.35 |
| Climate |
| Rain (mm/yr) |
1232 |
1027 |
605 |
849 |
600 |
475 |
365 |
399 |
565 |
718 |
482 |
285 |
306 |
408 |
667 |
566 |
662 |
659 |
576 |
548 |
514 |
| Total evaporation (mm/yr) |
622 |
569 |
469 |
509 |
427 |
412 |
322 |
398 |
454 |
478 |
424 |
274 |
276 |
319 |
628 |
547 |
617 |
598 |
527 |
495 |
496 |
| Run off (mm/yr) |
612 |
463 |
189 |
367 |
200 |
118 |
59 |
59 |
129 |
240 |
62 |
12 |
34 |
89 |
48 |
21 |
58 |
71 |
49 |
57 |
20 |
| Carbon |
| Net primary production (tC/ha/yr) |
5.9 |
5.3 |
3.8 |
4.8 |
3.4 |
3.0 |
2.0 |
2.8 |
3.4 |
3.3 |
2.6 |
1.2 |
1.5 |
2.1 |
3.5 |
2.5 |
3.4 |
3.6 |
2.9 |
2.9 |
2.1 |
| Plant carbon (tC/ha) |
321.0 |
260.9 |
141.1 |
233.7 |
144.8 |
109.3 |
63.7 |
84.8 |
138.3 |
167.1 |
81.2 |
31.2 |
42.3 |
76.5 |
88.0 |
43.2 |
92.9 |
100.9 |
72.2 |
86.2 |
39.8 |
| Litter + soil carbon (tC/ha) |
332.6 |
261.2 |
157.1 |
239.8 |
160.3 |
139.4 |
89.9 |
121.4 |
152.3 |
153.7 |
96.6 |
62.8 |
64.7 |
112.6 |
97.7 |
55.2 |
105.3 |
113.8 |
97.1 |
100.0 |
52.2 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
0.46 |
0.43 |
3.32 |
1.11 |
1.10 |
1.19 |
2.23 |
3.19 |
3.04 |
0.61 |
1.82 |
0.42 |
1.10 |
2.44 |
3.26 |
2.64 |
3.29 |
2.78 |
1.43 |
1.66 |
1.50 |
| Nitrogen fixation (kg N/ha/yr) |
24.93 |
21.06 |
23.52 |
36.97 |
40.50 |
26.80 |
30.15 |
40.99 |
41.89 |
20.72 |
37.05 |
5.02 |
17.03 |
33.12 |
32.24 |
18.74 |
35.47 |
37.12 |
31.98 |
39.12 |
13.23 |
| Total nitrogen (kg N/ha) |
27790 |
22210 |
13530 |
20480 |
13860 |
12050 |
7504 |
10410 |
13020 |
13160 |
8243 |
5103 |
5239 |
9607 |
8503 |
4778 |
9179 |
9899 |
8482 |
8644 |
4486 |
| Mineral nitrogen (kg N/ha) |
172 |
156 |
105 |
157 |
111 |
104 |
75 |
112 |
125 |
71 |
101 |
41 |
52 |
108 |
108 |
74 |
114 |
116 |
114 |
108 |
63 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
74 |
74 |
76 |
86 |
84 |
78 |
98 |
92 |
89 |
54 |
78 |
59 |
77 |
98 |
61 |
53 |
62 |
64 |
67 |
73 |
49 |
| Nitrogen leached (kg N/ha/yr) |
14 |
13 |
9 |
12 |
9 |
8 |
10 |
9 |
11 |
6 |
8 |
3 |
6 |
10 |
9 |
6 |
9 |
8 |
8 |
8 |
5 |
| Nitrogen volatilised (kg N/ha/yr) |
3.91 |
3.54 |
2.51 |
3.17 |
2.28 |
1.97 |
1.32 |
1.87 |
2.24 |
2.21 |
1.74 |
0.83 |
0.97 |
1.41 |
2.34 |
1.63 |
2.29 |
2.39 |
1.96 |
1.92 |
1.40 |
| Phosphorus from fertiliser (kg P/ha/yr) |
1.40 |
1.00 |
3.39 |
1.79 |
2.12 |
2.19 |
2.94 |
2.22 |
2.09 |
0.94 |
1.41 |
0.27 |
1.06 |
2.64 |
0.75 |
0.26 |
0.89 |
0.68 |
0.49 |
1.08 |
0.20 |
| Total phosphorus (kg P/ha) |
3454 |
2861 |
1763 |
2651 |
1750 |
1540 |
988 |
1347 |
1719 |
1594 |
1144 |
619 |
691 |
1273 |
1183 |
714 |
1257 |
1337 |
1170 |
1190 |
657 |
| Dissolved mineral phosphorus (kg P/ha) |
31.8 |
28.8 |
19.9 |
27.4 |
18.1 |
18.4 |
12.4 |
17.4 |
20.0 |
12.5 |
15.5 |
7.5 |
8.5 |
17.2 |
16.8 |
11.8 |
17.6 |
17.9 |
17.7 |
16.3 |
10.6 |
| Phosphorus concentration (mg P/kg W) |
13.8 |
13.8 |
14.4 |
14.6 |
13.8 |
13.6 |
16.0 |
14.2 |
14.0 |
9.5 |
12.2 |
10.9 |
12.5 |
15.9 |
9.6 |
8.6 |
9.7 |
10.0 |
10.3 |
11.0 |
8.4 |
| Phosphorus leached (kg P/m2/yr) |
2.62 |
2.35 |
1.72 |
2.11 |
1.48 |
1.36 |
1.59 |
1.36 |
1.67 |
1.05 |
1.22 |
0.51 |
0.90 |
1.61 |
1.32 |
0.96 |
1.33 |
1.25 |
1.13 |
1.21 |
0.79 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
107968 |
422132 |
236215 |
968068 |
443827 |
875014 |
478643 |
1094539 |
4665626 |
25868 |
4612721 |
445956 |
674238 |
4732563 |
324192 |
3070001 |
4933955 |
1017031 |
5108428 |
5551688 |
| Sediment supply (t/ha/yr) |
0.56 |
0.52 |
0.49 |
0.60 |
1.12 |
0.73 |
0.80 |
1.04 |
0.74 |
0.94 |
0.73 |
1.42 |
0.69 |
1.10 |
0.33 |
1.41 |
1.29 |
0.70 |
0.75 |
0.54 |
| Proportion from hillslopes (%) |
13.23 |
9.66 |
6.32 |
8.03 |
2.76 |
3.13 |
4.40 |
1.49 |
12.39 |
27.11 |
13.78 |
1.26 |
4.34 |
18.54 |
24.69 |
21.04 |
27.85 |
17.02 |
21.04 |
28.49 |
| Proportion from bank erosion (%) |
61.84 |
50.26 |
44.61 |
44.90 |
17.58 |
25.08 |
15.98 |
88.05 |
36.13 |
6.97 |
30.07 |
98.70 |
23.60 |
22.59 |
47.66 |
23.74 |
24.81 |
43.05 |
42.98 |
33.84 |
| Proportion from gullies (%) |
24.93 |
40.07 |
49.07 |
47.06 |
79.66 |
71.79 |
79.62 |
10.46 |
51.48 |
65.91 |
56.15 |
0.04 |
72.06 |
58.86 |
27.65 |
55.22 |
47.34 |
39.93 |
35.98 |
37.67 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.00 |
0.09 |
0.22 |
0.19 |
0.52 |
0.47 |
0.55 |
0.25 |
0.34 |
0.94 |
0.30 |
0.27 |
0.47 |
0.47 |
0.22 |
0.34 |
0.32 |
0.33 |
0.25 |
0.28 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
3 |
24 |
17 |
11 |
23 |
44 |
40 |
103 |
434 |
29 |
22 |
9 |
63 |
268 |
22 |
45 |
74 |
220 |
107 |
34 |
| Sediment export to the coast (t/yr) |
4582 |
15788 |
6635 |
46712 |
10690 |
4459 |
0 |
101001 |
109163 |
0 |
21627 |
95127 |
0 |
1548 |
1 |
1415 |
1671 |
178 |
1109 |
231 |
| Specific sediment export to the coast (t/ha/yr) |
0.02 |
0.02 |
0.01 |
0.03 |
0.03 |
0.00 |
0.00 |
0.10 |
0.02 |
0.00 |
0.00 |
0.30 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.04 |
0.04 |
0.03 |
0.05 |
0.02 |
0.01 |
0.00 |
0.09 |
0.02 |
0.00 |
0.00 |
0.21 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
| River nutrients |
| Phosphorus from fine sediments (%) |
68 |
74 |
84 |
74 |
91 |
90 |
0 |
88 |
89 |
0 |
93 |
99 |
0 |
0 |
95 |
86 |
97 |
97 |
96 |
95 |
91 |
| Phosphorus from point sources (%) |
15 |
8 |
0 |
5 |
0 |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
| Phosphorus - dissolved from diffuse sources (%) |
17 |
18 |
16 |
20 |
9 |
10 |
0 |
10 |
11 |
0 |
7 |
1 |
0 |
0 |
5 |
14 |
3 |
3 |
4 |
5 |
6 |
| Phosphorus deposited on floodplain (%) |
14 |
29 |
65 |
45 |
37 |
67 |
0 |
84 |
62 |
0 |
68 |
245 |
0 |
0 |
76 |
85 |
87 |
66 |
100 |
53 |
85 |
| Phosphorus deposited in reservoirs (%) |
0 |
2 |
5 |
9 |
32 |
26 |
0 |
45 |
25 |
0 |
28 |
0 |
0 |
0 |
6 |
0 |
0 |
22 |
0 |
42 |
10 |
| Phosphorus delivered to estuaries (%) |
86 |
69 |
31 |
46 |
30 |
7 |
0 |
188 |
13 |
0 |
4 |
531 |
0 |
0 |
17 |
15 |
13 |
11 |
0 |
5 |
5 |
| Phosphorus - total basin export (t P/yr) |
52 |
149 |
35 |
144 |
41 |
14 |
0 |
438 |
243 |
0 |
64 |
585 |
0 |
0 |
361 |
19 |
282 |
333 |
0 |
158 |
132 |
| Phosphorus - export rate (kg P/ha/yr) |
0.18 |
0.17 |
0.20 |
0.05 |
0.10 |
0.01 |
0.00 |
-0.09 |
0.03 |
0.00 |
0.01 |
-0.08 |
0.00 |
0.00 |
0.11 |
0.06 |
0.05 |
0.06 |
0.00 |
0.02 |
0.01 |
| Phosphorus load - times pre-European (ratio) |
1.1 |
1.1 |
1.7 |
1.7 |
0.7 |
2.3 |
2.7 |
1.3 |
2.3 |
8.5 |
2.8 |
1.8 |
1.6 |
2.2 |
5.5 |
2.9 |
6.3 |
5.0 |
3.5 |
2.8 |
3.8 |
| Phosphorus - dissolved to total (ratio) |
34 |
36 |
18 |
30 |
17 |
12 |
8 |
20 |
12 |
5 |
9 |
12 |
11 |
13 |
7 |
14 |
5 |
8 |
9 |
10 |
9 |
| Nitrogen from sediments (%) |
50 |
47 |
47 |
48 |
66 |
64 |
0 |
60 |
56 |
0 |
64 |
87 |
0 |
0 |
74 |
45 |
79 |
78 |
60 |
72 |
67 |
| Nitrogen from point sources (%) |
0 |
3 |
0 |
2 |
0 |
0 |
0 |
2 |
6 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
| Nitrogen - dissolved from diffuse sources (%) |
50 |
51 |
53 |
51 |
34 |
36 |
0 |
38 |
38 |
0 |
36 |
13 |
0 |
0 |
26 |
55 |
21 |
22 |
40 |
28 |
32 |
| Nitrogen deposited on floodplain (%) |
8 |
16 |
30 |
24 |
25 |
44 |
0 |
51 |
35 |
0 |
42 |
164 |
0 |
0 |
57 |
40 |
70 |
53 |
65 |
37 |
58 |
| Nitrogen deposited in reservoirs (%) |
0 |
1 |
3 |
5 |
23 |
18 |
0 |
27 |
16 |
0 |
21 |
0 |
0 |
0 |
5 |
0 |
0 |
17 |
0 |
33 |
6 |
| Nitrogen - denitrified (%) |
1 |
3 |
6 |
3 |
3 |
8 |
0 |
21 |
9 |
0 |
10 |
127 |
0 |
0 |
5 |
14 |
4 |
4 |
11 |
8 |
10 |
| Nitrogen delivered to estuary (%) |
91 |
81 |
61 |
68 |
48 |
30 |
0 |
437 |
40 |
0 |
28 |
5243 |
0 |
0 |
33 |
45 |
26 |
25 |
24 |
22 |
26 |
| Nitrogen - total export (t/yr) |
406 |
1360 |
426 |
1961 |
400 |
370 |
0 |
6859 |
5409 |
0 |
2710 |
14452 |
0 |
0 |
3197 |
382 |
1772 |
2874 |
535 |
3494 |
3247 |
| Nitrogen - export rate (kg/ha/yr) |
1.38 |
1.53 |
2.40 |
0.72 |
1.00 |
0.26 |
0.00 |
0.02 |
0.63 |
0.00 |
0.28 |
-0.26 |
0.00 |
0.00 |
0.96 |
1.29 |
0.30 |
0.51 |
0.63 |
0.54 |
0.18 |
| Nitrogen load - times pre-European (ratio) |
1.0 |
1.1 |
1.6 |
1.4 |
1.8 |
1.9 |
2.9 |
1.7 |
2.3 |
3.4 |
2.3 |
1.4 |
1.7 |
2.4 |
2.9 |
1.8 |
3.8 |
3.0 |
2.4 |
2.4 |
2.0 |
| Nitrogen - dissolved to total (ratio) |
62 |
71 |
66 |
64 |
56 |
57 |
59 |
81 |
58 |
25 |
54 |
74 |
68 |
61 |
43 |
68 |
32 |
36 |
54 |
56 |
52 |
| Context |
| Basin number |
423 |
424 |
425 |
426 |
501 |
502 |
503 |
504 |
505 |
506 |
507 |
508 |
509 |
510 |
511 |
512 |
513 |
601 |
602 |
603 |
604 |
| Basin name |
Warrego River |
Paroo River |
Darling River |
Lower Murray River |
Fleurieu Peninsular |
Myponga River |
Onkaparinga River |
Torrens River |
Gawler River |
Wakefield River |
Broughton River |
Mambray Coast |
Willochra Creek |
Lake Torrens |
Spencer Gulf |
Eyre Peninsular |
Kangaroo Island |
Esperance Coast |
Albany Coast |
Denmark River |
Kent River |
| Basin area (km2) |
62937 |
73965 |
112823 |
58286 |
985 |
155 |
915 |
1130 |
4582 |
1913 |
16371 |
5951 |
6615 |
26259 |
10878 |
3199 |
4413 |
20154 |
19608 |
2611 |
2492 |
| Improved pasture (%) |
0.57 |
0.03 |
0.07 |
3.95 |
37.07 |
41.89 |
18.35 |
9.09 |
7.62 |
12.49 |
8.44 |
0.22 |
3.60 |
0.00 |
7.03 |
7.22 |
32.88 |
25.14 |
28.95 |
16.04 |
25.86 |
| Cropping (%) |
0.09 |
0.00 |
0.42 |
4.35 |
2.41 |
3.14 |
2.80 |
0.73 |
33.65 |
53.03 |
45.11 |
2.52 |
11.71 |
0.04 |
18.90 |
14.13 |
5.13 |
19.71 |
20.18 |
0.44 |
3.16 |
| Horticulture (%) |
0.14 |
0.01 |
0.06 |
0.99 |
0.53 |
1.86 |
25.33 |
13.40 |
14.69 |
9.72 |
6.29 |
0.58 |
1.02 |
0.00 |
6.27 |
0.41 |
0.40 |
1.38 |
2.05 |
0.58 |
0.47 |
| Total agricultural land proportion (%) |
0.80 |
0.04 |
0.55 |
9.29 |
40.02 |
46.89 |
46.47 |
23.23 |
55.97 |
75.24 |
59.84 |
3.32 |
16.33 |
0.04 |
32.20 |
21.75 |
38.40 |
46.23 |
51.17 |
17.06 |
29.49 |
| Climate |
| Rain (mm/yr) |
454 |
308 |
296 |
280 |
725 |
742 |
693 |
650 |
465 |
399 |
416 |
295 |
318 |
193 |
291 |
483 |
616 |
445 |
481 |
794 |
784 |
| Total evaporation (mm/yr) |
443 |
305 |
286 |
257 |
408 |
420 |
437 |
414 |
366 |
331 |
333 |
268 |
293 |
154 |
267 |
328 |
348 |
367 |
369 |
461 |
443 |
| Run off (mm/yr) |
11 |
4 |
11 |
26 |
317 |
332 |
288 |
249 |
106 |
68 |
83 |
27 |
26 |
39 |
25 |
156 |
268 |
78 |
112 |
333 |
341 |
| Carbon |
| Net primary production (t C/ha/yr) |
1.6 |
0.8 |
1.0 |
1.1 |
3.5 |
3.3 |
3.3 |
2.9 |
3.0 |
2.9 |
2.6 |
1.2 |
1.5 |
0.3 |
1.3 |
2.5 |
3.5 |
2.4 |
2.6 |
4.3 |
4.4 |
| Plant carbon (t C/ha) |
28.9 |
13.5 |
21.5 |
31.8 |
128.0 |
121.1 |
112.3 |
96.3 |
88.3 |
80.0 |
72.7 |
29.4 |
42.6 |
7.3 |
34.0 |
74.9 |
117.0 |
67.4 |
81.8 |
141.6 |
144.8 |
| Litter + soil carbon (t C/ha) |
40.2 |
25.2 |
38.7 |
52.3 |
132.1 |
122.7 |
115.4 |
100.1 |
109.3 |
110.6 |
101.8 |
47.4 |
70.0 |
15.1 |
53.6 |
91.7 |
115.8 |
75.2 |
82.7 |
110.7 |
116.4 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
0.02 |
0.00 |
0.06 |
0.52 |
1.07 |
1.23 |
2.20 |
1.92 |
5.81 |
7.10 |
5.55 |
0.27 |
1.24 |
0.00 |
1.45 |
2.81 |
0.27 |
2.39 |
4.02 |
0.21 |
0.49 |
| Nitrogen fixation (kg N/ha/yr) |
5.42 |
2.56 |
3.56 |
10.84 |
76.47 |
76.26 |
35.42 |
26.06 |
52.11 |
71.33 |
53.88 |
5.99 |
15.32 |
1.03 |
16.28 |
29.19 |
70.63 |
52.54 |
60.25 |
49.59 |
71.80 |
| Total nitrogen (kg N/ha) |
3377 |
2026 |
3118 |
4243 |
11510 |
10640 |
9912 |
8525 |
9197 |
9217 |
8520 |
3834 |
5696 |
1184 |
4366 |
7705 |
9934 |
6343 |
7035 |
9579 |
10040 |
| Mineral nitrogen (kg N/ha) |
44 |
36 |
35 |
39 |
155 |
134 |
87 |
65 |
96 |
106 |
88 |
32 |
47 |
14 |
48 |
81 |
136 |
96 |
119 |
148 |
159 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
43 |
45 |
51 |
63 |
113 |
107 |
78 |
70 |
117 |
148 |
127 |
56 |
77 |
35 |
78 |
89 |
123 |
103 |
115 |
93 |
111 |
| Nitrogen leached (kg N/ha/yr) |
3 |
2 |
2 |
4 |
14 |
14 |
9 |
8 |
15 |
19 |
17 |
3 |
5 |
1 |
6 |
9 |
14 |
11 |
13 |
13 |
16 |
| Nitrogen volatilised (kg N/ha/yr) |
1.08 |
0.51 |
0.68 |
0.73 |
2.33 |
2.20 |
2.22 |
1.94 |
2.01 |
1.90 |
1.70 |
0.80 |
1.01 |
0.20 |
0.85 |
1.67 |
2.33 |
1.63 |
1.74 |
2.89 |
2.96 |
| Phosphorus from fertiliser (kg P/ha/yr) |
0.00 |
0.00 |
0.04 |
0.52 |
2.54 |
3.07 |
1.78 |
0.83 |
3.79 |
5.38 |
4.90 |
0.28 |
1.55 |
0.00 |
1.75 |
2.47 |
2.04 |
2.69 |
4.04 |
1.65 |
2.56 |
| Total phosphorus (kg P/ha) |
499 |
335 |
430 |
542 |
1619 |
1478 |
1313 |
1098 |
1227 |
1222 |
1111 |
488 |
714 |
163 |
602 |
1062 |
1442 |
946 |
1116 |
1598 |
1641 |
| Dissolved mineral phosphorus (kg P/ha) |
8.0 |
6.5 |
6.4 |
6.6 |
21.0 |
18.3 |
14.3 |
10.8 |
14.5 |
15.1 |
13.5 |
5.7 |
8.3 |
2.5 |
8.4 |
13.4 |
18.3 |
13.4 |
16.9 |
23.4 |
23.3 |
| Phosphorus concentration (mg P/kg W) |
8.0 |
8.2 |
9.3 |
10.8 |
15.3 |
14.7 |
12.8 |
11.5 |
17.7 |
21.2 |
19.6 |
10.1 |
13.7 |
6.3 |
14.0 |
14.9 |
16.7 |
14.4 |
16.3 |
14.6 |
16.1 |
| Phosphorus leached (kg P/m2/yr) |
0.59 |
0.40 |
0.45 |
0.60 |
1.86 |
1.91 |
1.54 |
1.24 |
2.23 |
2.70 |
2.52 |
0.55 |
0.95 |
0.21 |
0.99 |
1.56 |
1.83 |
1.52 |
1.79 |
2.06 |
2.33 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
1622326 |
1046864 |
3592482 |
2057263 |
35434 |
1482 |
12425 |
13590 |
117291 |
44567 |
341609 |
111773 |
222158 |
582864 |
110072 |
11376 |
50235 |
262308 |
432103 |
96073 |
55142 |
| Sediment supply (t/ha/yr) |
0.36 |
0.26 |
0.71 |
0.85 |
0.87 |
0.11 |
0.18 |
0.15 |
0.27 |
0.32 |
0.29 |
0.25 |
0.37 |
0.41 |
0.14 |
0.07 |
0.17 |
0.18 |
0.26 |
0.37 |
0.23 |
| Proportion from hillslopes (%) |
43.16 |
47.33 |
8.75 |
12.58 |
2.85 |
45.33 |
15.58 |
14.51 |
11.75 |
12.80 |
16.32 |
48.89 |
19.71 |
48.22 |
46.83 |
11.74 |
2.99 |
6.89 |
5.70 |
1.28 |
1.32 |
| Proportion from bank erosion (%) |
36.84 |
39.56 |
81.01 |
74.96 |
7.58 |
30.78 |
49.64 |
67.77 |
43.15 |
29.76 |
28.61 |
9.34 |
17.75 |
7.53 |
27.19 |
70.03 |
26.80 |
18.59 |
19.60 |
17.08 |
17.82 |
| Proportion from gullies (%) |
20.01 |
13.10 |
10.24 |
12.46 |
89.57 |
23.89 |
34.78 |
17.73 |
45.10 |
57.44 |
55.06 |
41.77 |
62.55 |
44.24 |
25.98 |
18.23 |
70.20 |
74.53 |
74.70 |
81.64 |
80.86 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.17 |
0.09 |
0.25 |
0.41 |
0.00 |
0.00 |
0.00 |
0.00 |
0.18 |
0.15 |
0.11 |
0.07 |
0.48 |
0.32 |
0.01 |
0.03 |
0.01 |
0.07 |
0.22 |
0.09 |
0.11 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
16 |
13 |
24 |
14 |
12 |
1 |
4 |
2 |
11 |
10 |
9 |
29 |
13 |
13 |
37 |
3 |
63 |
259 |
76 |
36 |
426 |
| Sediment export to the coast (t/yr) |
91 |
0 |
169797 |
564300 |
13310 |
641 |
3820 |
3223 |
25422 |
5466 |
56140 |
29033 |
0 |
1434 |
21507 |
3373 |
17111 |
40274 |
80131 |
31091 |
14816 |
| Specific sediment export to the coast (t/ha/yr) |
0.00 |
0.00 |
0.03 |
0.23 |
0.33 |
0.05 |
0.06 |
0.04 |
0.06 |
0.04 |
0.05 |
0.06 |
0.00 |
0.00 |
0.03 |
0.02 |
0.06 |
0.03 |
0.05 |
0.12 |
0.06 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.00 |
0.00 |
0.05 |
0.27 |
0.38 |
0.43 |
0.31 |
0.24 |
0.22 |
0.12 |
0.16 |
0.26 |
0.00 |
0.00 |
0.20 |
0.30 |
0.34 |
0.15 |
0.19 |
0.32 |
0.27 |
| River nutrients |
| Phosphorus from fine sediments (%) |
93 |
0 |
97 |
94 |
86 |
63 |
24 |
61 |
61 |
61 |
57 |
85 |
81 |
95 |
67 |
35 |
51 |
61 |
64 |
71 |
57 |
| Phosphorus from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
61 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
7 |
0 |
3 |
6 |
14 |
37 |
15 |
39 |
39 |
39 |
43 |
15 |
19 |
5 |
33 |
65 |
49 |
39 |
36 |
29 |
43 |
| Phosphorus deposited on floodplain (%) |
97 |
0 |
262 |
75 |
26 |
5 |
18 |
24 |
44 |
54 |
46 |
60 |
75 |
61 |
57 |
31 |
21 |
52 |
49 |
31 |
34 |
| Phosphorus deposited in reservoirs (%) |
0 |
0 |
0 |
55 |
0 |
0 |
37 |
18 |
0 |
0 |
2 |
3 |
0 |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Phosphorus delivered to estuaries (%) |
3 |
0 |
22 |
257 |
74 |
95 |
45 |
58 |
56 |
46 |
51 |
37 |
25 |
35 |
43 |
69 |
79 |
48 |
51 |
69 |
66 |
| Phosphorus - total basin export (t P/yr) |
20 |
0 |
153 |
661 |
9 |
1 |
7 |
4 |
28 |
9 |
75 |
11 |
16 |
59 |
17 |
6 |
19 |
50 |
85 |
23 |
16 |
| Phosphorus - export rate (kg P/ha/yr) |
0.00 |
0.00 |
-0.11 |
-0.01 |
0.09 |
0.08 |
0.07 |
0.03 |
0.06 |
0.03 |
0.05 |
0.02 |
0.02 |
0.02 |
0.02 |
0.02 |
0.04 |
0.03 |
0.04 |
0.08 |
0.07 |
| Phosphorus load - times pre-European (ratio) |
3.7 |
3.2 |
2.4 |
2.7 |
2.7 |
0.5 |
3.9 |
0.7 |
2.0 |
2.2 |
1.8 |
3.9 |
4.0 |
4.5 |
2.8 |
1.2 |
1.5 |
2.2 |
2.3 |
2.4 |
2.0 |
| Phosphorus - dissolved to total (ratio) |
7 |
7 |
11 |
8 |
5 |
60 |
39 |
52 |
16 |
10 |
10 |
3 |
3 |
1 |
6 |
27 |
36 |
18 |
15 |
21 |
29 |
| Nitrogen from sediments (%) |
71 |
0 |
87 |
71 |
47 |
25 |
20 |
33 |
22 |
20 |
21 |
55 |
47 |
80 |
30 |
9 |
14 |
21 |
22 |
29 |
18 |
| Nitrogen from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
28 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
29 |
0 |
13 |
29 |
53 |
75 |
52 |
67 |
78 |
80 |
79 |
45 |
53 |
20 |
70 |
91 |
86 |
79 |
78 |
71 |
82 |
| Nitrogen deposited on floodplain (%) |
69 |
0 |
171 |
42 |
13 |
1 |
4 |
8 |
13 |
16 |
14 |
34 |
39 |
48 |
22 |
4 |
4 |
15 |
14 |
11 |
8 |
| Nitrogen deposited in reservoirs (%) |
0 |
0 |
0 |
42 |
0 |
0 |
7 |
13 |
0 |
0 |
1 |
2 |
0 |
3 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Nitrogen - denitrified (%) |
14 |
0 |
403 |
37 |
5 |
5 |
11 |
10 |
21 |
24 |
26 |
19 |
31 |
14 |
36 |
20 |
11 |
26 |
22 |
7 |
11 |
| Nitrogen delivered to estuary (%) |
16 |
0 |
18 |
1061 |
82 |
94 |
79 |
69 |
66 |
60 |
59 |
45 |
30 |
35 |
43 |
76 |
85 |
60 |
64 |
82 |
80 |
| Nitrogen - total export (t/yr) |
606 |
0 |
579 |
14728 |
74 |
18 |
86 |
57 |
439 |
165 |
1236 |
102 |
157 |
310 |
205 |
117 |
366 |
901 |
1415 |
290 |
267 |
| Nitrogen - export rate (kg/ha/yr) |
0.11 |
0.00 |
-1.57 |
-0.05 |
0.74 |
1.21 |
0.92 |
0.55 |
0.91 |
0.56 |
0.81 |
0.16 |
0.23 |
0.12 |
0.21 |
0.36 |
0.82 |
0.45 |
0.68 |
1.03 |
1.14 |
| Nitrogen load - times pre-European (ratio) |
1.7 |
1.6 |
1.7 |
2.0 |
2.2 |
1.6 |
2.3 |
1.2 |
2.4 |
4.5 |
3.7 |
1.9 |
2.5 |
3.2 |
2.3 |
2.0 |
1.9 |
2.0 |
2.6 |
1.5 |
1.9 |
| Nitrogen - dissolved to total (ratio) |
54 |
56 |
59 |
56 |
43 |
86 |
82 |
87 |
69 |
65 |
67 |
47 |
51 |
18 |
54 |
89 |
84 |
82 |
82 |
85 |
90 |
| Context |
| Basin number |
605 |
606 |
607 |
608 |
609 |
610 |
611 |
612 |
613 |
614 |
615 |
616 |
617 |
618 |
619 |
701 |
702 |
703 |
704 |
705 |
706 |
| Basin name |
Frankland River |
Shannon River |
Warren River |
Donnelly River |
Blackwood River |
Busselton Coast |
Preston River |
Collie River |
Harvey River |
Murray River (WA) |
Avon River |
Swan Coast |
Moore-Hill Rivers |
Yarra Yarra Lakes |
Ninghan |
Greenough River |
Murchison River |
Wooramel River |
Gascoyne River |
Lyndon-Minilya Rivers |
Ashburton River |
| Basin area (km2) |
4657 |
3297 |
4404 |
1731 |
22565 |
3061 |
1134 |
3713 |
2002 |
9941 |
117721 |
8240 |
24515 |
42186 |
20582 |
25043 |
91229 |
41907 |
75818 |
52736 |
75716 |
| Improved pasture (%) |
34.84 |
1.76 |
10.54 |
10.93 |
28.88 |
34.63 |
25.18 |
11.02 |
29.17 |
23.55 |
11.32 |
7.12 |
20.44 |
1.67 |
0.50 |
8.72 |
0.46 |
0.09 |
0.00 |
0.00 |
0.00 |
| Cropping (%) |
12.98 |
0.15 |
1.38 |
0.14 |
22.12 |
0.49 |
0.67 |
0.98 |
1.00 |
10.53 |
25.99 |
2.85 |
18.28 |
8.55 |
4.01 |
22.06 |
0.65 |
0.00 |
0.00 |
0.00 |
0.00 |
| Horticulture (%) |
0.91 |
0.56 |
0.58 |
0.65 |
3.24 |
1.03 |
4.28 |
0.36 |
2.83 |
4.47 |
4.47 |
17.45 |
6.04 |
2.46 |
1.32 |
8.03 |
0.99 |
0.00 |
0.01 |
0.01 |
0.00 |
| Total agricultural land proportion (%) |
48.72 |
2.47 |
12.50 |
11.72 |
54.24 |
36.14 |
30.13 |
12.35 |
33.01 |
38.56 |
41.77 |
27.41 |
44.77 |
12.67 |
5.83 |
38.80 |
2.10 |
0.09 |
0.01 |
0.01 |
0.00 |
| Climate |
| Rain (mm/yr) |
574 |
1051 |
798 |
1039 |
547 |
915 |
879 |
802 |
938 |
706 |
336 |
755 |
494 |
290 |
284 |
369 |
242 |
224 |
251 |
255 |
308 |
| Total evaporation (mm/yr) |
369 |
487 |
418 |
469 |
345 |
410 |
440 |
416 |
447 |
396 |
289 |
427 |
355 |
269 |
265 |
307 |
233 |
213 |
246 |
240 |
301 |
| Run off (mm/yr) |
205 |
565 |
381 |
570 |
202 |
507 |
455 |
390 |
504 |
310 |
47 |
330 |
139 |
21 |
19 |
61 |
9 |
11 |
5 |
14 |
7 |
| Carbon |
| Net primary production (t C/ha/yr) |
3.4 |
5.5 |
4.3 |
5.6 |
3.1 |
2.9 |
3.9 |
3.5 |
3.2 |
3.1 |
1.5 |
2.7 |
2.1 |
0.8 |
0.9 |
1.6 |
0.3 |
0.5 |
0.2 |
0.3 |
0.3 |
| Plant carbon (t C/ha) |
112.5 |
174.5 |
138.4 |
175.6 |
92.7 |
79.2 |
111.2 |
103.7 |
81.6 |
86.1 |
37.3 |
63.8 |
42.2 |
13.8 |
16.3 |
28.8 |
6.0 |
8.1 |
3.6 |
4.6 |
5.6 |
| Litter + soil carbon (t C/ha) |
117.0 |
142.7 |
132.4 |
156.2 |
106.8 |
77.5 |
104.0 |
90.5 |
75.5 |
89.1 |
55.0 |
59.5 |
49.8 |
24.1 |
27.2 |
42.0 |
12.1 |
16.5 |
8.5 |
10.6 |
11.5 |
| Landscape nutrients |
| Nitrogen from fertiliser (kg N/ha/yr) |
1.94 |
0.49 |
1.38 |
0.42 |
3.62 |
2.39 |
5.97 |
0.52 |
4.52 |
1.78 |
3.90 |
0.43 |
3.88 |
1.39 |
0.45 |
4.64 |
0.14 |
0.00 |
0.00 |
0.00 |
0.00 |
| Nitrogen fixation (kg N/ha/yr) |
72.86 |
23.36 |
39.95 |
50.99 |
67.04 |
55.51 |
60.55 |
31.53 |
54.73 |
51.46 |
26.50 |
20.66 |
39.76 |
7.49 |
4.67 |
28.77 |
1.74 |
1.59 |
0.67 |
0.88 |
1.06 |
| Total nitrogen (kg N/ha) |
9938 |
12300 |
11320 |
13470 |
8957 |
6629 |
8873 |
7605 |
6492 |
7426 |
4413 |
4922 |
4040 |
1871 |
2080 |
3330 |
920 |
1196 |
650 |
792 |
909 |
| Mineral nitrogen (kg N/ha) |
125 |
130 |
110 |
144 |
108 |
104 |
114 |
92 |
116 |
90 |
64 |
64 |
79 |
33 |
31 |
61 |
20 |
20 |
15 |
14 |
18 |
| Mineral nitrogen concentration in soil water (mg N/kg W) |
134 |
86 |
93 |
104 |
132 |
90 |
98 |
76 |
85 |
98 |
95 |
60 |
93 |
53 |
49 |
82 |
37 |
39 |
31 |
31 |
31 |
| Nitrogen leached (kg N/ha/yr) |
15 |
16 |
13 |
18 |
15 |
14 |
15 |
12 |
14 |
13 |
9 |
9 |
11 |
4 |
3 |
9 |
2 |
2 |
1 |
1 |
2 |
| Nitrogen volatilised (kg N/ha/yr) |
2.27 |
3.65 |
2.85 |
3.75 |
2.04 |
1.91 |
2.58 |
2.37 |
2.11 |
2.05 |
1.01 |
1.79 |
1.38 |
0.51 |
0.58 |
1.07 |
0.23 |
0.31 |
0.13 |
0.18 |
0.21 |
| Phosphorus from fertiliser (kg P/ha/yr) |
3.58 |
0.75 |
2.55 |
2.07 |
4.51 |
5.15 |
6.90 |
1.96 |
5.23 |
3.09 |
2.38 |
0.45 |
2.91 |
0.65 |
0.22 |
2.84 |
0.10 |
0.00 |
0.00 |
0.00 |
0.00 |
| Total phosphorus (kg P/ha) |
1413 |
1877 |
1606 |
1978 |
1256 |
1074 |
1396 |
1206 |
1112 |
1095 |
660 |
788 |
693 |
310 |
334 |
555 |
171 |
200 |
120 |
131 |
155 |
| Dissolved mineral phosphorus (kg P/ha) |
17.5 |
23.8 |
18.8 |
24.2 |
15.6 |
16.7 |
19.6 |
15.7 |
18.3 |
13.8 |
10.0 |
10.7 |
11.8 |
5.6 |
5.6 |
9.6 |
3.6 |
3.6 |
2.7 |
2.5 |
3.2 |
| Phosphorus concentration (mg P/kg W) |
18.3 |
15.8 |
15.9 |
17.4 |
18.9 |
14.6 |
16.9 |
13.2 |
13.7 |
14.6 |
14.8 |
10.0 |
14.0 |
9.0 |
8.8 |
13.2 |
6.6 |
7.2 |
5.6 |
5.5 |
5.5 |
| Phosphorus leached (kg P/m2/yr) |
2.02 |
2.86 |
2.16 |
3.01 |
2.19 |
2.30 |
2.59 |
1.99 |
2.34 |
1.96 |
1.33 |
1.45 |
1.60 |
0.61 |
0.50 |
1.41 |
0.29 |
0.29 |
0.23 |
0.23 |
0.28 |
| Erosion & sediment transport |
| Sediment supplied to rivers (t/yr) |
191579 |
12817 |
109750 |
16014 |
801185 |
71086 |
72214 |
104569 |
56121 |
459501 |
1631866 |
366825 |
534511 |
152132 |
21065 |
724210 |
1502684 |
| Sediment supply (t/ha/yr) |
0.41 |
0.05 |
0.25 |
0.09 |
0.35 |
0.31 |
0.62 |
0.28 |
0.38 |
0.48 |
0.38 |
0.51 |
0.46 |
0.25 |
0.22 |
0.40 |
0.30 |
| Proportion from hillslopes (%) |
1.30 |
0.65 |
0.87 |
0.98 |
2.63 |
3.05 |
1.71 |
3.30 |
2.94 |
2.35 |
4.39 |
1.96 |
2.77 |
17.31 |
21.54 |
6.30 |
24.60 |
| Proportion from bank erosion (%) |
16.14 |
38.61 |
32.14 |
29.77 |
27.15 |
35.35 |
33.06 |
38.69 |
44.66 |
22.98 |
19.82 |
24.37 |
15.69 |
14.15 |
20.86 |
17.57 |
21.05 |
| Proportion from gullies (%) |
82.56 |
60.74 |
67.00 |
69.25 |
70.22 |
61.60 |
65.23 |
58.01 |
52.41 |
74.67 |
75.79 |
73.67 |
81.55 |
68.54 |
57.60 |
76.13 |
54.34 |
| Proportion of length with bed deposition > 0.30 m (proportion) |
0.57 |
0.00 |
0.08 |
0.01 |
0.37 |
0.05 |
0.00 |
0.11 |
0.11 |
0.55 |
0.60 |
0.32 |
0.54 |
0.10 |
0.00 |
0.45 |
0.14 |
| Sed Ratio (Euro:pre-Euro) (ratio) |
92 |
170 |
80 |
57 |
247 |
817 |
29 |
>1,000 |
106 |
598 |
470 |
418 |
32 |
229 |
415 |
91 |
9 |
| Sediment export to the coast (t/yr) |
26392 |
5264 |
27922 |
5886 |
97576 |
24238 |
24565 |
21630 |
17138 |
84754 |
75636 |
89746 |
50819 |
0 |
0 |
116012 |
21096 |
| Specific sediment export to the coast (t/ha/yr) |
0.06 |
0.02 |
0.06 |
0.03 |
0.04 |
0.10 |
0.21 |
0.06 |
0.12 |
0.09 |
0.02 |
0.12 |
0.04 |
0.00 |
0.00 |
0.06 |
0.00 |
| River sediment delivery ratio (export/supply to streams) (ratio) |
0.14 |
0.41 |
0.25 |
0.37 |
0.12 |
0.34 |
0.34 |
0.21 |
0.31 |
0.18 |
0.05 |
0.24 |
0.10 |
0.00 |
0.00 |
0.16 |
0.01 |
| River nutrients |
| Phosphorus from fine sediments (%) |
72 |
18 |
59 |
28 |
67 |
64 |
75 |
64 |
66 |
76 |
73 |
36 |
79 |
90 |
87 |
77 |
92 |
| Phosphorus from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
56 |
0 |
0 |
0 |
0 |
0 |
| Phosphorus - dissolved from diffuse sources (%) |
28 |
82 |
41 |
72 |
33 |
36 |
25 |
36 |
34 |
24 |
27 |
8 |
21 |
10 |
13 |
23 |
8 |
| Phosphorus deposited on floodplain (%) |
61 |
7 |
37 |
12 |
59 |
24 |
27 |
26 |
19 |
53 |
86 |
51 |
66 |
63 |
55 |
58 |
95 |
| Phosphorus deposited in reservoirs (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
27 |
5 |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
| Phosphorus delivered to estuaries (%) |
39 |
93 |
63 |
88 |
41 |
76 |
73 |
47 |
76 |
47 |
14 |
77 |
34 |
37 |
45 |
42 |
5 |
| Phosphorus - total basin export (t P/yr) |
26 |
17 |
29 |
13 |
122 |
21 |
18 |
19 |
18 |
73 |
78 |
200 |
59 |
14 |
2 |
96 |
19 |
| Phosphorus - export rate (kg P/ha/yr) |
0.05 |
0.05 |
0.07 |
0.07 |
0.05 |
0.07 |
0.15 |
0.05 |
0.10 |
0.07 |
0.01 |
0.33 |
0.02 |
0.00 |
0.00 |
0.04 |
0.00 |
| Phosphorus load - times pre-European (ratio) |
3.3 |
1.2 |
2.1 |
1.2 |
2.4 |
2.8 |
3.9 |
1.6 |
1.7 |
2.6 |
3.0 |
2.0 |
3.9 |
5.7 |
7.7 |
5.3 |
7.2 |
| Phosphorus - dissolved to total (ratio) |
10 |
71 |
25 |
62 |
14 |
26 |
13 |
31 |
45 |
24 |
7 |
32 |
9 |
2 |
3 |
4 |
4 |
| Nitrogen from sediments (%) |
28 |
4 |
21 |
7 |
25 |
26 |
37 |
27 |
28 |
35 |
32 |
25 |
37 |
64 |
61 |
36 |
70 |
| Nitrogen from point sources (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
43 |
0 |
0 |
0 |
0 |
0 |
| Nitrogen - dissolved from diffuse sources (%) |
72 |
96 |
79 |
93 |
75 |
74 |
63 |
73 |
72 |
65 |
68 |
32 |
63 |
36 |
39 |
64 |
30 |
| Nitrogen deposited on floodplain (%) |
21 |
1 |
10 |
2 |
20 |
9 |
12 |
9 |
7 |
22 |
27 |
20 |
29 |
41 |
35 |
26 |
68 |
| Nitrogen deposited in reservoirs (%) |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
8 |
2 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| Nitrogen - denitrified (%) |
18 |
6 |
11 |
7 |
27 |
5 |
7 |
9 |
5 |
13 |
33 |
27 |
23 |
22 |
22 |
23 |
24 |
| Nitrogen delivered to estuary (%) |
61 |
93 |
78 |
91 |
54 |
86 |
81 |
75 |
86 |
65 |
40 |
52 |
48 |
37 |
43 |
51 |
8 |
| Nitrogen - total export (t/yr) |
451 |
311 |
439 |
239 |
1973 |
305 |
185 |
339 |
234 |
1011 |
2332 |
831 |
777 |
88 |
17 |
1132 |
169 |
| Nitrogen - export rate (kg/ha/yr) |
0.93 |
1.02 |
0.98 |
1.39 |
0.87 |
1.00 |
1.58 |
0.91 |
1.25 |
1.02 |
0.19 |
-4.01 |
0.31 |
0.02 |
0.01 |
0.44 |
0.02 |
| Nitrogen load - times pre-European (ratio) |
3.1 |
1.1 |
1.6 |
1.3 |
3.0 |
2.3 |
2.3 |
1.4 |
1.6 |
2.1 |
3.6 |
1.7 |
2.6 |
2.8 |
2.3 |
3.1 |
2.7 |
| Nitrogen - dissolved to total (ratio) |
81 |
98 |
89 |
97 |
84 |
83 |
77 |
90 |
89 |
80 |
77 |
85 |
75 |
53 |
66 |
69 |
51 |