Australian Natural Resources Atlas

Economics - Mitchell River

Mitchell River

Location map of Basin Mitchell River

What was included in the economic assessment of Australia's natural resource base?

New data sets have been developed through the National Land and Water Resources Audit that relate to economic aspects of natural resource management in Australia. There is a focus on resources used to support agriculture and resources impacted by agriculture. The Australia-wide report provides:

Consistent with protocols used by the Australian Bureau of Statistics and the Australian Bureau of Agriculture and Resource Economics, the database provides a new capacity to integrate natural resource information in Australia. The data sets are primarily built for the 1996/97 financial year, the year of an agricultural census. Except where stated otherwise, all dollar values given are in 1996/97 dollars.

Most of the data is represented on a 1km by 1km grid covering agricultural land. Whilst modelled at this level of spatial detail interpretation should generally occur at coarser levels. Data on downstream infrastructure costs of deteriorating water quality has been assembled by river basin.

Context for understanding the natural resource accounts for Mitchell River

Attribute Unit Basin value Median Australia-wide value
Total basin area ha 487,699 909,531
Non-agricultural area ha 414,266 299,341
Agricultural area ha 73,433 477,706
Irrigated agricultural area in 1996/97 ha 2,542 2,458
Dryland agricultural area in 1996/97 ha 70,892 468,383

Agricultural profit in Mitchell River

Attribute Unit Basin value Median Australia-wide value
1996/97 Gross revenue $000 29,453 27,636
1996/97 Variable costs $000 9,127 8,654
1996/97 Fixed costs $000 14,473 12,744
1996/97 Profit at full equity $000 5,854 2,621
1996/97 Government Support $000 2,366 1,827
1996/97 Economic returns $000 3,488 707
5yr (1992/93 - 1996/97) Gross revenue $000 30,621 31,139
5yr (1992/93 - 1996/97) Total costs $000 23,408 23,408
5yr (1992/93 - 1996/97) Profit at full equity $000 7,213 6,194
Irrigated agriculture 5yr profit at full equity $000 5,637 4,226
Dryland agriculture 5yr profit at full equity $000 1,576 2,817
Minimum area of basin needed to produce 80% of profit at full equity within basin ha 2,151 16,340
Ranking of basin in order of contribution to national 1996/97 profit at full equity # 112 no data

Costs of resource use to agriculture in Mitchell River

Attribute Unit Basin value Median Australia-wide value
Area where NPV of lime application is positive ha 2,840 7,265
Area where NPV of gypsum application is positive ha 390 2,013
Area where NPV of lime and gypsum application is positive ha 1,956 1,496
Area where dryland salinity caused yield loss in 2000 ha 126 1,015
Area where dryland salinity may cause yield loss in 2020 ha 159 1,702
Gross benefit from ameliorating acidic soils $000 3,965 1,232
Gross benefit from ameliorating sodic soils $000 1,078 666
Gross benefit from ameliorating saline soils $000 7 152
Limiting factor gross benefit $000 4,589 2,422
Impact cost of dryland salinity to agriculture from 2000 to 2020 $000 2 48
Present value of dryland salinity impact cost to agriculture from 2000 to 2020 $000 13 266
Net present value of lime application $000 20,774 10,411
Net present value of gypsum application $000 360 1,046
Net present value of lime and gypsum application $000 16,389 4,133

Costs of resource use - offsite / downstream in Mitchell River

Attribute Unit Basin value Median Australia-wide value
Local infrastructure cost of salinity and water table rise 2000 $000/yr 2 56
Local infrastructure cost of salinity and water table rise 2020 $000/yr 2 79
Present value of increase in local infrastructure costs from salinity & rising water tables from 2000 to 2020 2 76
•1% increase in salt loads $000 no data 240
•5% increase in salt loads $000 no data 1,201
•10% increase in salt loads $000 no data 2,401
•1% increase in turbidity $000 46 169
•5% increase in turbidity $000 228 414
•10% increase in turbidity $000 447 744
•1% increase in sediment loads $000 1 4
•5% increase in sediment loads $000 5 19
•10% increase in sediment loads $000 10 35

Further information

View the Australians and Natural Resource Management 2002 (theme) report.

View other Audit assessments by clicking the links below:

View "Natural Resource Economics" project and technical reports:

A project report has been prepared by CSIRO Land and Water Policy and Economic Research Unit in the development of this work:

The technical appendices of "Values of returns to land and water and costs of degradation" report contain detailed descriptions of the methods used in this work:

The technical appendices of "Values of returns to land and water and costs of degradation" report also includes a number of component project reports. These report may be viewed separately:

Case study: View or download a technical report and appendices on dryland salinity:
View "People" project and technical reports:

This report does not contain maps and needs to be read in conjunction with:

Link to the Map Maker to view economic data.

Link to the Australian Natural Resources Data Library - to download economic and social data

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