Research on the Kinetic Energy of Rainfall Erosion At Xiaoliang water and Soil Conservation Experiment Station

Chen Fayang; Wang Zhiming

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Research on the Kinetic Energy of Rainfall Erosion At Xiaoliang water and Soil Conservation Experiment Station

- Research on the Kinetic Energy of Rainfall Erosion At Xiaoliang water and Soil Conservation Experiment Station
- Bulletin of Soiland Water Conservation Vol. 11, Issue 1, Pages: 42-51(1992)
- 作者机构：
  
  1. 水利部南昌水利水电专科学校,南昌市,330029
  2. 广东省小良水土保持试验站, 广东电白县
- 作者简介：
- 基金信息：
- DOI：
  CLC： S157.1
- Published：1992
- 稿件说明：
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Chen Fayang, Wang Zhiming. Research on the Kinetic Energy of Rainfall Erosion At Xiaoliang water and Soil Conservation Experiment Station[J]. Bulletin of Soiland Water Conservation, 1992, 11(1): 42-51.
DOI：

Chen Fayang, Wang Zhiming. Research on the Kinetic Energy of Rainfall Erosion At Xiaoliang water and Soil Conservation Experiment Station[J]. Bulletin of Soiland Water Conservation, 1992, 11(1): 42-51. DOI：

摘要

该文以小良水土保持试验站3号试验场（光板地）1983年至1989年7年间观测到的有关降雨侵蚀资料为研究内容

运用计算机技术

对小良水保站的降雨侵蚀动能作了比较深入的分析。对小良站的雨型、瞬时雨强所产生的侵蚀动能以及由此而产生的土壤侵蚀等方面

都作了有益的探讨;对引起土壤侵蚀的临界降雨强度即侵蚀性降雨的底值（X）作了定量描述

即X =9.4mm（-次降雨雨量）I

=8.7mm/h 或I

=20.6mm/h。在应用通用土壤流失方程时

对小良水土保持试验站的降雨因子作了必要的修正

并给定了适合在各种情况下的综合雨型系数。同时

在回旧分析的基础上

建立了瞬时雨强和相应土壤侵蚀量之间的模拟方程

并具有较高的置信度。

Abstract

With some rainfall erosion data measured in 7 years from 1983 to 1989 in No.3 Te-sting Field (by bare land) at xiaoliang water and soil conservation station as theresearch contents

computer techniques are used to make a rather detailed analysisof kinetic energy of rainfall erosion at xiaoliang water and soil conservationStation. Also

a benefit discussion was made on rainfall types

erosion kinetic energy produced by instant rainfall

intensity thereby to cause soil erosion in thispaper. At the same time

the critical rainfall intensity to cause soil erosion i.e. thebottom value (X) of erosive rainfall was described quantitatively

i. e. X = 9.4mm(rainfall in one time)

I30 = 8.7mm/h or I5 = 20.6mm/h. When using universalsoil loss equation

the necessary modification was made to rainfall factorat XiaoliangWater and Soil Conservation Station

and also the coefficients of comprehensiverainfall typs in various cases were given. Meanwhile

based on the regressionanalysis

the simulation equation between instant rainfall intensity and the amountof corresponding soil erosion was established with a high reliability.

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