调亏灌溉对中国玉米产量和水分利用效率影响的Meta分析  

Meta-analysis of the Effect of Deficit Irrigation on Maize Yield and Water Use Efficiency in China

作　　者：刘丹彤 宋长春 辛卓航 房冲 刘志红[1] LIU Dan-tong;SONG Chang-chun;XIN Zhuo-hang;FANG Chong;LIU Zhi-hong(School of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,Liaoning Province,China;Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130102,Jilin Province,China)

机构地区：[1]大连理工大学建设工程学院,辽宁大连116024 [2]中国科学院东北地理与农业生态研究所,吉林长春130102

出　　处：《节水灌溉》2025年第2期85-92,99,共9页Water Saving Irrigation

基　　金：中国科学院黑土地保护与利用科技创新工程专项(XDA28020502)。

摘　　要：在水资源短缺的背景下,分析调亏灌溉对玉米产量和水分利用效率的影响,识别调亏灌溉的最佳策略对于玉米高产高效用水具有重要意义。从44篇文献中收集了调亏灌溉和充分灌溉两种处理下的429对玉米产量观测数据和277对玉米水分利用效率观测数据,利用Meta分析方法探讨了调亏灌溉对玉米产量和水分利用效率的影响,比较了不同的调亏比例、气候条件和土壤质地下调亏灌溉效果的差异,并分析了调亏灌溉下玉米产量和水分利用效率之间的关系。结果显示,与充分灌溉相比,调亏灌溉总体使玉米的水分利用效率提高7.43%,却使产量下降了8.74%。然而,调亏灌溉的效果因调亏比例和土壤气象条件而异,调亏比例小于0.2的调亏灌溉可在不显著降低玉米产量的同时使水分利用效率提高6.65%,在年降水量400~800 mm和年平均气温小于12℃的地区以及粉壤土和壤土上实施调亏灌溉更有可能实现玉米高产和高效用水的双赢,并最小化玉米减产与水分利用效率提升的权衡。In the context of water scarcity,analyzing the effects of deficit irrigation on maize yield and water use efficiency and identifying the optimal deficit irrigation strategy is crucial for achieving high maize yield and efficient water use.We collected 429 pairs of maize yield observations and 277 pairs of maize water use efficiency observations under two treatments of deficit irrigation and full irrigation from 44 papers.We explored the effects of deficit irrigation on maize yield and water use efficiency using meta-analysis,comparing the differences in the effects of deficit irrigation under different deficit ratios,climatic conditions,and soil texture,and analyzing the trade-off or synergistic relationship between maize yield and water use efficiency under deficit irrigation.The results indicated that deficit irrigation overall increased the water use efficiency of maize by 7.43%but decreased yield by 8.74%compared to full irrigation.However,the effects of deficit irrigation vary depending on the deficit ratio and soil-climatic conditions.Deficit irrigation with a deficit adjustment ratio of<0.2 increased water use efficiency by 6.65%without significantly reducing maize yields.Implementation of deficit irrigation is more likely to achieve a win-win strategy of high maize yield and water use efficiency in areas with annual precipitation of 400~800 mm,average annual temperature below 12°C,and soils such as silty loam and loam,while minimizing the trade-off between reduced maize yield and increased water use efficiency.

关 键 词：调亏灌溉 玉米 META分析 玉米产量 水分利用效率 

分 类 号：S274.1[农业科学—农业水土工程] TV93[农业科学—农业工程]