基于TOPSIS黄淮海平原井灌区冬小麦调亏灌溉的多目标优化  

Multi-Objective Optimization of Regulated Deficit Irrigation for Winter Wheat Based on TOPSIS in Huang-Huai-Hai Plain Well Irrigation Area

作　　者：秦海霞 张玉顺 张昆 杨浩晨 邱新强 王艳平 路振广 张明智 Qin Haixia;Zhang Yushun;Zhang Kun;Yang Haochen;Qiu Xinqiang;Wang Yanping;Lu Zhenguang;Zhang Mingzhi(Henan Provincial Water Conservancy Research Institute/Center of Efficient Irrigation Engineering and Technology Research of Henan Province,Zhengzhou 450003,Henan,China;Henan Institute of Technology,Xinxiang 453003,Henan,China)

机构地区：[1]河南省水利科学研究院/河南省节水灌溉工程技术研究中心,河南郑州450003 [2]河南工学院,河南新乡453003

出　　处：《作物杂志》2021年第3期202-209,共8页Crops

基　　金：河南省重点研发与推广专项(212102110069);河南省水利科技攻关计划项目(GG201509,GG201602);河南省基本科研业务费项目。

摘　　要：为探寻黄淮海平原井灌区冬小麦适宜的调亏灌溉控制指标,通过3季(2015-2017年)不同灌水下限与灌水定额(30、60、90、120和180mm)2因素组合试验,研究调亏灌溉对冬小麦产量及作物水分利用效率的影响。灌水下限分别为:轻旱(LD),冬小麦苗期至返青期、拔节期、抽穗期和灌浆成熟期田间持水量分别为田间持水量(field capacity,FC)的50%、55%、60%和50%;中旱(MD),冬小麦苗期至返青期、拔节期、抽穗期和灌浆成熟期田间持水量分别为田间持水量的40%、50%、55%和45%。研究结果表明,随灌水定额的增加,产量呈先增加后下降趋势,水分利用效率呈下降趋势。90mm灌水定额下,随灌水下限的增加,冬小麦产量呈增加趋势。基于CRITIC赋权的TOPSIS法构建冬小麦综合效益多目标优化模型获得的结果与产量和作物水分利用效率分析法获得的结论具有一致性,均表明LD60处理最优。综合考虑,为实现本地区冬小麦稳产与水资源高效利用的双重目标,冬小麦适宜采用轻旱胁迫下灌水定额为60mm的调亏灌溉控制指标。本结论可为黄淮海平原井灌区冬小麦的管理提供科学依据。To explore the suitable regulated deficit irrigation control index of winter wheat in the well irrigation area of Huang-Huai-Hai Plain,the effects of regulated deficit irrigation on winter wheat yield and crop water use efficiency were studied through three-year(2015-2017)experiments with different irrigation lower limits[light drought(LD),the field capacity(FC)of winter wheat was 50%,55%,60%,and 50%at seedling to green stage,jointing stage,heading stage,and grain filling mature stage,respectively;and moderate drought(MD),the field capacity of winter wheat was 40%,50%,55%,and 45%at seedling to green stage,jointing stage,heading stage,grain filling mature stage,respectively]and irrigation quota(30,60,90,120,180 mm).The results showed that with the increase of irrigation quota,the yield increased first and then decreased,and the crop water use efficiency decreased.Under the 90 mm irrigation quota,the yield of winter wheat increased with the increase of the lower limit of irrigation.The result of constructing a multi-objective optimization model of the comprehensive benefit of winter wheat based on the CRITIC weighted TOPSIS method was consistent with that obtained by comprehensive analysis of yield and water use efficiency,which showed that LD60 treatment was the best.Considering comprehensively,to achieve the dual goals of stable yield and efficient utilization of water resources of winter wheat in this region,the suitable irrigation quota under light drought stress degree of winter wheat was60 mm.This study can provide a scientific basis for the management of winter wheat in the well irrigation area of Huang-Huai-Hai Plain in China.

关 键 词：灌水下限 灌水定额 产量 水分利用效率 

分 类 号：S512.11[农业科学—作物学]