| 模拟垄沟灌溉土壤水分入渗特性试验研究 |
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| 引用本文： | 王自奎,吴普特,赵西宁,张勇勇,陈小莉,张凤云.模拟垄沟灌溉土壤水分入渗特性试验研究[J].干旱地区农业研究,2011,29(3):24-28. |
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| 作者姓名： | 王自奎 吴普特 赵西宁 张勇勇 陈小莉 张凤云 |
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| 作者单位： | 西北农林科技大学水利与建筑工程学院;国家节水灌溉杨凌工程技术研究中心;中科院水利部水土保持研究所; |
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| 基金项目： | 国家自然科学基金(50809055); 国家科技支撑计划(2011BAD29B09) |
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| 摘 要： | 采用土箱进行模拟垄沟灌溉入渗试验,探索垄沟灌溉条件下土壤水分的入渗特性.研究结果表明:垄沟灌溉入渗时,湿润锋水平方向与垂直方向的运移距离与入渗时间呈幂函数正相关,其垂向运移距离明显大干一般沟灌;灌水时沟中与垄坡剖面的含水率迅速增加,再分布过程中在水平向水势梯度的作用下垄上剖面的含水率也不断增加,适当减小垄宽可以减少灌溉...
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| 关 键 词： | 垄沟灌溉 间(套)作 湿润锋 土壤含水率 沟底覆膜 |
Simulation experiment on soil water infiltration characteristics under ridge-furrow irrigation |
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| WANG Zikui,WU Pute,ZHAO Xining,ZHANG Yongyong,CHEN Xiaoli,ZHANG Fengyun.Simulation experiment on soil water infiltration characteristics under ridge-furrow irrigation[J].Agricultural Research in the Arid Areas,2011,29(3):24-28. |
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| Authors: | WANG Zikui WU Pute ZHAO Xining ZHANG Yongyong CHEN Xiaoli ZHANG Fengyun |
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| Institution: | WANG Zi-kui1,WU Pu-te1,2,3,ZHAO Xi-ning1,ZHANG Yong-yong3,CHEN Xiao-li2,ZHANG Feng-yun3(1.College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling,Shaanxi 712100,China,2.National Engineering Research Center for Water Saving Irrigation at Yangling,3.Institute of Soil and Water Conservation,Chinese Academy of Science and Ministry of Water Resources,China) |
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| Abstract: | In order to probe the soil water infiltration characteristics for ridge-furrow irrigation,a field test of ridge-furrow intercropping,simulation experiment of ridge-furrow irrigation was carried out.The results showed that,in ridge-furrow irrigation, vertical and horizontal wetting front migration distance and infiltration time were positively related,and the vertical wetting front migration distance was longer than that in general furrow irrigation;The soil moisture content in furrow and slope increased rap... |
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| Keywords: | ridge-furrow irrigation intercropping wetting front soil moisture content bed film-covering |
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