System dynamics optimisation approach to irrigation demand management

Abstract

Significant problems of water shortage and deteriorating water quality are contributing to a growing water crisis in many countries. This situation requires creative solutions to achieve sustainable resource management. In the Murrumbidgee river basin, irrigation extraction and land clearing have had major impacts on the river environment (DLWC 1995). Irrigation demand has changed the natural flow regime of the river which has induced significant environmental changes. Increased demands for water have led to reduced river flows and a reversal of the seasonal flow patterns. Finding ways to meet irrigation demands and also achieve positive environmental and economic outcomes requires the aid o..