美国爱达荷州东南处6900公顷(17000亩)灌溉工程最少费用的系统重建规划,是运用混合整数模型程序作由的。而且,笔者对于三种自流输水系统(现有的非衬砌渠道,混凝土衬砌渠道和自流管道)以及五种类型的灌溉应用系统(两种自流管道和三种喷灌系统)所组成的综合系统进行了研究,认为按规定的约束条件所编制的混合整数模型程 Systematic reconstruction planning for a minimum cost of 6900 hectares (17000 acres) of irrigation works to the southeast of Idaho, USA, is done using a mixed integer model program. Moreover, I conducted a comprehensive system of three gravity-fed water systems (existing non-lining channels, concrete lining channels and gravity pipes) and five types of irrigation applications (two gravity pipes and three sprinkler systems) The study concluded that the mixed integer model program prepared according to the prescribed constraints