| 坡面流及土壤侵蚀动力学(I)——————坡面流 |
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| 引用本文： | 刘青泉,李家春,陈力,向华.坡面流及土壤侵蚀动力学(I)——————坡面流[J].力学进展,2004,34(3):360-372. |
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| 作者姓名： | 刘青泉 李家春 陈力 向华 |
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| 作者单位： | 中科院力学所 |
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| 基金项目： | 国家自然科学重点基金(10332050)及中国科学院创新研究方向(KJCX2-SW-L1)资助项目 |
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| 摘 要： | 坡面流是坡面土壤侵蚀的根本动力,是研究土壤侵蚀动力学过程的基础.本文简要介
绍了坡面流的基本特征和水力学特性,综述了坡面入渗产流过程、坡面流阻力,以及
坡面流运动的数学描述和预报模型等方面的研究进展.指出复杂坡面条件下的坡面
流运动,以及从小尺度过渡到大尺度将是今后坡面流研究的重要发展方向.
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| 关 键 词： | 坡面流 水力特性 水流阻力 流态 坡面流模型 |
DYNAMICS OF OVERLAND FLOW AND SOIL EROSION (I)--OVERLAND FLOW |
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| LIU Qingquan LI Jiachun CHEN Li XIANG Hua
Institute of Mechanics,Chinese Academy of Sciences,Beijing ,China.DYNAMICS OF OVERLAND FLOW AND SOIL EROSION (I)--OVERLAND FLOW[J].Advances in Mechanics,2004,34(3):360-372. |
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| Authors: | LIU Qingquan LI Jiachun CHEN Li XIANG Hua
Institute of Mechanics Chinese Academy of Sciences Beijing China |
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| Affiliation: | LIU Qingquan LI Jiachun CHEN Li XIANG Hua
Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | Overland flow produces eroding force and plays a basic role in the study of the dynamics process of soil erosion. This paper briefly introduces the basic characteristics and hydraulics properties of overland flow, and summarizes the research advances in the processes of soil infiltration, runoff generation, the resistance of overland flow, and the prediction model of overland flow. It is shown that the motion of overland flow on hillslopes with complex surface conditions,and the modeling of runoff generation in the various scales will be the future trends of overland flow dynamics. |
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| Keywords: | overland flow hydraulic characteristics flow resistance flow pattern overland flow model |
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