经济自立灌排区最优水价模型

A Model of Optimum Water Price for Self - financial Irrigation and Drainage District

介绍了经济自立灌排区及其农业用水需求弹性计算农业用水需求函数的方法；以 ＳＩＤＤ下供水公司最大利润为目标，建立最优水价模型，推导最优水价公式，并给出一个实际算例说明模型的应用．

This article tries to introduce the concept of Self-- financial Irrigation and Drainage District (SIDD), According to the change. of agricultural water demand, a water demand function is drduced. A model of water price for maximum profit is developed. A fact example is given to explain the application of the model.