| 紫色土坡地壤中流特征 |
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| 引用本文： | 徐勤学,王天巍,李朝霞,蔡崇法,史志华.紫色土坡地壤中流特征[J].水科学进展,2010,21(2):229-234. |
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| 作者姓名： | 徐勤学 王天巍 李朝霞 蔡崇法 史志华 |
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| 作者单位： | 华中农业大学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： | 国家重点基础研究发展计划(973)资助项目，国家自然科学基金资助项目 |
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| 摘 要： | 壤中流是紫色土坡地径流的重要组成部分。通过野外人工模拟降雨试验,研究了不同降雨条件下紫色土坡地壤中流特征和地表状况变化对壤中流的影响,结果表明:①未扰动荒坡地壤中流径流系数是裸露坡耕地的3～15倍,平均流量是坡耕地的7～33倍,荒坡地和坡耕地壤中流特征差异在大雨强条件下表现更为明显;②坡耕地壤中流径流系数随降雨强度的增加而显著减少,但荒坡地壤中流受雨强的影响不明显;③荒坡地壤中流随地表状况变化而改变,植被覆盖的减少和降雨对疏松地表的压实导致壤中流明显减少。
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| 关 键 词： | 紫色土 降雨强度 壤中流 地表状况 |
| 收稿时间： | 2009-04-06 |
Characteristics of interflow in purple soil of hillslope |
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| XU Qin-xue,WANG Tian-wei,LI Zhao-xia,CAI Chong-fa,SHI Zhi-hua.Characteristics of interflow in purple soil of hillslope[J].Advances in Water Science,2010,21(2):229-234. |
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| Authors: | XU Qin-xue WANG Tian-wei LI Zhao-xia CAI Chong-fa SHI Zhi-hua |
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| Institution: | Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China |
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| Abstract: | The interflow constitutes an important portion of total runoff in purple soil of a hillslope.A series of artificial field simulation experiments were conducted to explore the characteristic of interflow in the purple soil of hillslpoe in the different rainfall intensities and land surface conditions.Experimental results show that the observed runoff coefficient and the average interflow for the interflow on undisturbed wastelands are 3 to 15 times and 7 to 33 times that of the observed on bare cultivated la... |
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| Keywords: | purple soil rainfall intensity interflow soil surface conditions |
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