榆中县灌溉型水土资源利用系统模型的调控与优化

Control and optimization of utilization system model of irrigational water-land resources in Yuzhong county

从系统的观点出发，给出了榆中县灌溉型水土资源利用系统的模型结构，通过水土平衡机制的调控，制定了相应的灌溉定额和灌溉制度；最后采用线性规划方法对系统进行了优化，并提出了具体可行的节水改土对策和相应的措施．

Using system viewpoint,the paper gives model structure of irrigation al water-land resourcesutilization system in Yuzhong county,and works out suitable irrigation quota and institution by control-ling water-land balance,At last,the paper uses the method of linear progranmming to optimizatc system.and suggests some concrete effective counter-measures of hydrol-control and soil-improvement.