摘要
以节水、高产和高效为目标,在定性分析的基础上,应用层次分析法对采用不同节水灌溉方式时的灌溉面积、节水量、投资额和净现值等的计算问题进行了研究,并以河南省偃师县山化乡为例,进行了实例运算。结果表明,这一方法是可行的。
The selection of water-saving irrigation patterns is studied.The objec- tive of the study is to obtain high level crop production and best economic return with smaller amount of irrigating water.Therefore,based on quanlitative analysis, an analytic hierarchy process model is developed to determine the area of various water-saving irrigation patterns,the amount of water-saving,the investment and its net present value,etc.An example for Shanhua village of the Yanshi county,Henan province is presented.The results indicate that the method presented is feasible.
基金
国家自然科学基金
关键词
节水灌溉
层次分析法
water-saving irrigation
analytic hierarchy process
decision supporting system
