| 土壤质地对坡地土壤水分运动与转化特征的影响研究 |
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| 引用本文： | 张亚丽,李怀恩,张兴昌.土壤质地对坡地土壤水分运动与转化特征的影响研究[J].灌溉排水学报,2008,27(6):27-30. |
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| 作者姓名： | 张亚丽 李怀恩 张兴昌 |
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| 作者单位： | [1]河南农业大学资环学院,郑州450002 [2]西安理工大学西北水资源与环境生态教育部重点实验室,西安710048 [3]中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100 |
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| 基金项目： | 国家自然科学基金
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国家科技支撑计划
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河南农业大学校科研和教改项目
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| 摘 要： | 通过室内模拟降雨试验,研究了杨凌塿土、安塞黄绵土和神木绵砂土的水分迁移特征。结果表明,随着土壤粘粒含量的增加,坡面产流开始时间提前,坡地平均径流系数、径流量和泥沙量呈增加趋势,入渗率和累计入渗水量呈减少趋势。3种土壤降雨入渗率均可用Kostiakov公式拟合,塿土、黄绵土和绵砂土坡地的平均入渗率分别为0.32、0.83和0.88 mm/min。湿润锋运移速度应该与土壤砂粒百分含量和土层含水量的增量呈正相关关系。为了提高雨水利用率,减少水土流失量,建议加强塿土坡地的保护性耕作措施。
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| 关 键 词： | 模拟降雨 黄土坡地 土壤质地 水分迁移 影响 |
Effects of Soil Texture on Soil Water Movement and Transport on Slope Land |
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| ZHANG Ya-li,,LI Huai-en,ZHANG Xing-chang.Effects of Soil Texture on Soil Water Movement and Transport on Slope Land[J].Journal of Irrigation and Drainage,2008,27(6):27-30. |
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| Authors: | ZHANG Ya-li LI Huai-en ZHANG Xing-chang |
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| Institution: | ZHANG Ya-li1,2,3,LI Huai-en2,ZHANG Xing-chang3(1.Institute of Resources , Environment,Henan University of Agriculture,Zhengzhou 450002,China,2.Northwest Water Resources , Environment Ecology Key Laboratory of MOE,Xi\'an University of Technology,Xi\'an 710048,3.Institute of Soil , Water Conservation,CAS,State Key Lab.of Soil Erosion , Dryl, Farming on Loess Plateau,Yangling 712100,China) |
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| Abstract: | The mechanism of soil water movement and transport is necessary for agricultural management with different soil textures.According to the results of simulation rainfall experiments,the transport traits of soil water on loess slope lands with different soil textures,Yangling sandy clay soil,Ansai loam,Shenmu silt loam,respectively,are investigated.It shows that the initiation runoff time,runoff and sediment also climb with the increase of soil clay particle percent,while the infiltration rate and the cumulat... |
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| Keywords: | simulation rainfall loess slope land soil texture water transport effect |
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