大型灌区节水改造投资效益分析

In 1998, China began to implement the project of Large-scale Irrigation District rehabilitation and water-saving reform. To scientifically evaluate the effects achieved, the Cost-Benefit analysis (CBA) of water saving reform is needed. On the basis of actual investigation, the indexes of irrigation benefit-cost analysis are designed and a CBA model of large-scale irrigation water-saving reform is established by using AHP. The model established is used in Typical Irrigation Districts, and the results indicate that the project brought significant economic, social, and ecological benefits.