Li, Zhou-wei with Zhou Yong, "A S.D. Model for Rational Exploitation and Utilization of Water Resources in Arid and Semi-arid Areas", 1989
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This model, composed of 12 subsystems and more than 220 equations, discusses various factors concerning water resource and the feedback relations of these factors. Through emulations of the different decision plans, it puts forward the most favorable plans for rational and economical exploitation of water resources, the improvement of water utilization ratio and the best use of water under the conditions of a sound ecological balance.