The balance between irrigation profitability and natural resource management
has often been stated as a policy goal but not defined in any quantitative way.
The quatitative information is crucial when examining options, both policy and
on farm, that aim to increase water use efficiency and achieve natural resource
and economic sustainability at a farm level. SWAGMAN Farm® modeling
system developed by scientists at CSIRO Land and Water in Griffith allows the
determination of this balance in a real world context.
SWAGMAN Farm® modeling system is a management-oriented,
multi-disciplinary computer modeling system developed to help determine
cost-effective options to achieve farm scale water and salt balance within irrigation
areas. The model takes into account distribution of soils within the farm,
potential landuses, crop evaporative requirements, current irrigation
practices, leaching requirement, annual rainfall, rainfall runoff, leakage to
deeper aquifers, depth to watertable, capillary upflow from shallow watertable,
salt concentration of irrigation water, groundwater, and rainwater, and the
economic returns from potential landuses.
The model can be used to: provide farmers with a method to simulate and assess
various farm cropping scenarios in terms of economic return and
environmental effects; determine environmentally optimal irrigation intensity
and encourage water use efficiency through water and salinity auditing in an
integrated model; assist irrigation authorities (public & private) develop
policy to achieve improved economic and natural resource sustainability.
Please click on SWAGMAN Farm to log on the SWAGMAN Farm® modeling
system, or click on Log off to log of the system.