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Experimental Research on Distribution of Sprinkler Irrigation Water by Corn Canopy
Authors
冯浩
范兴科
郝芝建
阳晓原
Publication date
1 January 2008
Publisher
Abstract
通过喷灌玉米田间试验,研究了喷灌水经玉米冠层再分配后的分布状况。结果表明:在玉米全生育期,茎秆下流水量占灌水量的均值为44%左右,棵间穿透水量占灌水量的均值为48%左右,冠层截留量在0.8 ̄2.9mm之间变化。一次灌水中,喷灌水在地表的分布很不均匀,43.2%的灌水量经茎秆下流到根区,在距离茎秆7cm,15cm,25cm和32.5cm处,地表接收的水量占总灌水量的比例分别为18.9%、43.5%、66.9%和84.5%。灌水量、种植密度、株高和叶面积指数等都影响着喷灌水在地表的分布
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018