豫西黄土区夏玉米非充分灌溉制度研究  

Research on Deficit Irrigation System of Summer Maize in the Loess Area of Western Henan Province

作　　者：王国重[1] 李中原 张继宇 杨丹 程焕玲 王小远 WANG Guozhong;LI Zhongyuan;ZHANG Jiyu;YANG Dan;CHENG Huanling;WANG Xiaoyuan(Hydrology and Water Resources of Yellow River Scientific Research Institute,Zhengzhou 450004;Hydrology and Water Resources Bureau in Henan Province,Zhengzhou 450003;Yellow River Henan Bureau,Zhengzhou 450003;Zhoukou Hydrology and Water Resources Survey Bureau in Henan Province,Zhoukou Henan 466000;Soil and Water Conservation Supervision Central Station in Henan Province,Zhengzhou 450008;Ruida Information Technology Co.,Ltd.,in Henan Province,Zhengzhou 450003)

机构地区：[1]黄河水文水资源科学研究院,郑州450004 [2]河南省水文水资源局,郑州450003 [3]河南黄河河务局,郑州450003 [4]河南省周口水文水资源勘测局,河南周口466000 [5]河南省水土保持监测总站,郑州450008 [6]河南瑞达信息技术有限公司,郑州450003

出　　处：《中国农学通报》2022年第18期8-11,共4页Chinese Agricultural Science Bulletin

基　　金：河南省科技攻关计划“河南省生态清洁小流域建设及关键技术研究”(GG201719)。

摘　　要：豫西黄土区水资源紧缺,为充分利用当地的雨水资源,以非充分灌溉原理和节水农业理论为指导,采用Jensen模型,以夏玉米生长各阶段单位面积上实际产量与可能最大产量之比最大为目标函数,灌溉水量与实际腾发量为决策变量,可分配的水量和计划湿润层内可供利用的水量为状态变量,用动态规划逐次逼近法求解该模型,推求夏玉米的非充分灌溉优化制度。结果表明:优化结果与试验数据相吻合,说明Jensen模型在该地区的适用性。The water resource is short in the loess area of western Henan Province.To achieve efficient use of local rainwater resource,the Jensen model is adopted under the guidance of deficit irrigation principle and water-saving agriculture theory.The objective function is the maximum ratio of actual yield to possible maximum yield per unit area at each stage of summer maize growth,the decision-making variables are the irrigation amount and actual evapotranspiration,and state variables are the allocated water amount and available water amount in planned moisture layer.The model is solved by successive approximation method of dynamic programming to derive the optimal system of deficit irrigation for summer maize.The optimized results are in good agreement with the experimental data,indicating the applicability of Jensen’s model in the area.

关 键 词：非充分灌溉 夏玉米 JENSEN模型 动态规划 逐次逼近法 

分 类 号：S274.1[农业科学—农业水土工程]