田间渠系水量优化配置模型的应用研究

Field Ditch Water Optimization Scheme Model Research in Irrigation Area

田间渠系水量优化配置是水资源优化配置的重要手段之一,对于缓解绿洲区水资源供需矛盾具有重要意义。以玛纳斯河流域石河子乡灌区为绿洲区典型区域,根据该灌区实际情况分别建立了灌区来水大、小两种情况下的田间渠系优化配水模型,采用Matlab编制程序并进行了实例计算,得出了流量分别为1m3/s和0.4 m3/s情况下的田间渠系渠系优化配水方案,优化结果比预期节约时间分别为26.45h和35.1h,结果表明两种模型划分出的轮灌组,划分结构紧密、分布集中、有利于田间管理,方便运行,节约了灌水时间,在一定程度上缓解了水资源供需的矛盾。

Field ditch water optimization scheme is one of the most important measures in water optimization. It is useful to decrease the contradiction of water demand and supply in oasies. Shihezi country irrigation areai s taken as a typical area in oasis,based on the fact of the irrigation area,two kinds of field ditch water optimization model （great and little coming water quantity） are established and the model is completed with computer language matlab. The field ditch water scheme results showed that it saved 26.45h and 35. lh in the two kind of current quantity （1m^3/s and 0.4m^3/s）. It is showed that alternation irrigation team configuration tightness and distribution convergence, and it is convenience to manage in the field. The two models can save irrigation time and decrease the contradiction of water demand and supply.