Up to 60 per cent of potable water supplied to Perth, Western Australia, is extracted from the groundwater system that lies below the northern part of the metropolitan area. Many of the urban wetlands are groundwater-dependent and excessive groundwater extraction and climate change have resulted...

The potential for supplementing sparse economic data and aggregate production data with a detailed specification of land quality constraints obtained from a Geographical Information System, in order to parameterise a regional model of rice acreage response in Vietnam, is investigated in this...

In this paper, a model is presented which shows the relationship between country grain storage costs and transport bottlenecks that exist in the harvest period. It is shown that transport bottlenecks limit the amount of grain that can be transported from receival points in the peak receival...