| 三峡库区不同厚度紫色土坡耕地产流机制分析 |
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| 引用本文： | 付智勇,李朝霞,蔡崇法,郭忠录.三峡库区不同厚度紫色土坡耕地产流机制分析[J].水科学进展,2011,22(5):680-688. |
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| 作者姓名： | 付智勇 李朝霞 蔡崇法 郭忠录 |
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| 作者单位： | 华中农业大学水土保持研究中心农业部亚热带农业资源与环境重点实验室, 湖北武汉 430070 |
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| 基金项目： | 国家自然科学基金资助项目(40930529;41171223)~~ |
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| 摘 要： | 土层厚度是影响坡面水文过程的决定性因素之一.通过野外模拟降雨试验(设计雨强60 mm/h),在小区尺度上研究了一个完整坡面上典型土层厚度紫色土坡耕地坡面产流机制.结果表明:对于地表径流,土层厚度为23 cm小区表现为饱和产流,而土层厚度为45 em和76 cm小区均表现为超渗产流；对于壤中流,土层厚度为76 em小区以...
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| 关 键 词： | 土层厚度 紫色土 壤中流 优先流 降雨产流关系 |
| 收稿时间： | 2011-01-11 |
Mechanism of runoff generation on the sloped land of purple soil with different thicknesses in the Three Gorges Region |
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| FU Zhi-yong,LI Zhao-xia,CAI Chong-fa,GUO Zhong-lu.Mechanism of runoff generation on the sloped land of purple soil with different thicknesses in the Three Gorges Region[J].Advances in Water Science,2011,22(5):680-688. |
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| Authors: | FU Zhi-yong LI Zhao-xia CAI Chong-fa GUO Zhong-lu |
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| Institution: | Soil and Water Conservation Research Centre of Huazhong Agricultural University, Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture, Wuhan 430070, China |
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| Abstract: | Soil thickness is one of the most important factors determining the hydrological process on hillslopes.Using a portable rainfall simulator,file experiments were conducted on three sloped land sites along a hillslope to investigate the mechanism of runoff generation under artificial rainfall intensities of 60 mm/h.The sites contain purple soil with different depths(23 cm,45 cm,and 76 cm).The results show that saturation excess runoff contributes a large portion of overland flow on the 23 cm soil site;it is i... |
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| Keywords: | soil thickness purple soil subsurface flow preferential flow rainfall-runoff relationships |
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