| 坡面降雨溅蚀及其模拟 |
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| 引用本文： | 汤立群.坡面降雨溅蚀及其模拟[J].水科学进展,1995,6(4):304-310. |
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| 作者姓名： | 汤立群 |
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| 作者单位： | 河海大学水资源水文系 南京 210098 |
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| 基金项目： | “八五”国家重点科技攻关项目;河海大学水资源开发利用国家专业实验室开发基金 |
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| 摘 要： | 对雨滴的溅蚀过程及影响因素作了全面的分析。在揭示黄土地区梁峁上部雨蚀规律的基础上,运用牛顿第二运动定律,推导出雨滴对土粒撞击力的表达式。在假定雨滴溅蚀率与雨滴侵蚀力成线性关系情况下,推导出雨滴溅蚀量表达式,经桥沟流域径流场上应用,效果令人满意。
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| 关 键 词： | 雨滴溅蚀 雨滴侵蚀 撞击力 雨滴终速 黄土结皮 |
| 收稿时间： | 1994-07-02 |
Soil Erosion Caused by on the Sloping Land Impacts of Raindrop and Its Simulation |
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| Tang Liqun.Soil Erosion Caused by on the Sloping Land Impacts of Raindrop and Its Simulation[J].Advances in Water Science,1995,6(4):304-310. |
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| Authors: | Tang Liqun |
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| Affiliation: | Department of Water Resources and Hydrology, Hohai University, Nanjing 210098 |
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| Abstract: | Rainfall erosion and its influence factors have been analysed in this paper.The formula of impact force produced by raindrop is deduced with the Newton's second law of motion based on the law of rainfall erosion on upland of ridge-hill in Loess Plateau regions.1t is assumed that splash rate of raindrop correfates with erosion force of raindrop to be linear,and a splash rate formula of raindrop is developed.It is verified with measured data of runoff plat of Qiaogou catchment and the results are satisfactory. |
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| Keywords: | erosion of raindrop impact erosion force of raindrop impact force terminal velocity of raindrop Surface soil crusting on Loess |
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