基于系统动力学的平原河网型灌区多尺度下灌溉用水量计算方法研究  

Research on the Calculation Method of Multi-scale Irrigation Water Use in the Irrigation System of Plain River Network Based on System Dynamics

作　　者：李其峰 陈彩明 李冬晓 蔡晨凯 王士武 LI Qi-feng;CHEN Cai-ming;LI Dong-xiao;CAI Chen-kai;WANG Shi-wu(Zhejiang Institute of Hydraulics and Estuary(Zhejiang Surveying Institute of Estuary and Coast),Hangzhou 310020,Zhejiang Province,China;Huadong Engineering Corporation Limited,Hangzhou 311122,Zhejiang Province,China)

机构地区：[1]浙江省水利河口研究院(浙江省海洋规划设计研究院),浙江杭州310020 [2]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《中国农村水利水电》2024年第1期25-29,36,共6页China Rural Water and Hydropower

基　　金：浙江省基础公益研究计划项目(LZJWY23E090009);浙江省水利科技计划项目(RB2107)。

摘　　要：以嘉兴市长水塘灌区为研究对象,建立基于系统动力学的灌区水循环过程模拟模型,并引入灌片灌溉水回归系数,应用于灌区灌溉回归水重复利用量模拟分析以及多尺度下灌溉用水量计算。结果表明:通过对模型的率定与验证,模拟得到典型泵站模拟水量与实测值基本吻合,相对差绝对值均在15%以内,模拟得到的灌区河网水位变化趋势与实测过程基本一致。模型能够较好的反映灌区水量转化过程,能够为灌区灌溉用水量统计工作提供支撑。This paper uses the Changshui Pond Irrigation System in Jiaxing City as the research object,and establishes a simulation model of water cycle process in irrigation system based on system dynamics,which can be applied to the simulation analysis of return flow and the cal⁃culation of irrigation water use from multiple scales based on the introduction of irrigation water regression coefficient.The results show that through the calibration and verification of the model,the simulated water volume of any typical pump station is basically consistent with the actual monitored water volume,with the absolute value of the relative error lower than 15%.Also,the simulated water level change process of the river network is basically consistent with the actual monitored water level process.The model can better reflect the water conversion process in irrigation system and provide support for the statistical work of irrigation water use in irrigation system.

关 键 词：灌溉用水量 回归水重复利用 系统动力学 平原河网型灌区 

分 类 号：TV213[水利工程—水文学及水资源]