| 由降雨侵蚀引起的山坡面水土流失预测的数学模型 |
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| 引用本文： | 刘阳,王锡魁,彭泽州. 由降雨侵蚀引起的山坡面水土流失预测的数学模型[J]. 吉林大学学报(地球科学版), 2002, 32(2): 174-176 |
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| 作者姓名： | 刘阳 王锡魁 彭泽州 |
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| 作者单位： | 吉林大学地球探测科学与技术学院,吉林,长春,130026;吉林大学地球科学学院,吉林,长春,130026 |
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| 摘 要： | 数学模型包括：坡面水流连续方程、水流运动方程、泥沙连续方程（水土流失方程）、坡面变形方程。考虑到坡面流的流速及非线性双曲型方程,采用迎风有限差分显格式来离散方程,编制计算程序,进行了计算。研究成果可以描述动态坡面降雨侵蚀过程,并可将研究成果扩展到整个小流域,从而为治理水土流失提供依据。
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| 关 键 词： | 坡面 降雨 侵蚀 水土流失 数学模型 |
| 文章编号： | 1671-5888(2002)02-0174-03 |
| 修稿时间： | 2001-08-23 |
MATHEMATIC MODEL OF RUNOFF AND SEDIMENT YIELD BY SLOPE EROSION UNDER RAINFALL |
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| LIU Yang ,WANG Xi kui ,PENG Ze zhou. MATHEMATIC MODEL OF RUNOFF AND SEDIMENT YIELD BY SLOPE EROSION UNDER RAINFALL[J]. Journal of Jilin Unviersity:Earth Science Edition, 2002, 32(2): 174-176 |
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| Authors: | LIU Yang WANG Xi kui PENG Ze zhou |
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| Affiliation: | LIU Yang 1,WANG Xi kui 2,PENG Ze zhou 1 |
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| Abstract: | The mathematic model include slope water continuous equation, water kinematical equation, silt continuous equation, slope surface deformation equation. Considering the velocity of the water streams and the nonlinear equation, facing wind finite difference method being used to solve the equation, and a program was written out. Our research can describe the slope erosion situation trends, and expand to whole watershed, which can provide important basis for administering water and soil erosion. |
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| Keywords: | slope rainfall erosion runoff and sediment yield mathematic model |
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