Application of Universal Soil Loss Equation At Xiaoliang Water and Soil Conservation Experiment Station

Chen Fayang; Wang Zhiming

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Application of Universal Soil Loss Equation At Xiaoliang Water and Soil Conservation Experiment Station

- Application of Universal Soil Loss Equation At Xiaoliang Water and Soil Conservation Experiment Station
- Bulletin of Soiland Water Conservation Vol. 11, Issue 1, Pages: 23-41(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. Application of Universal Soil Loss Equation At Xiaoliang Water and Soil Conservation Experiment Station[J]. Bulletin of Soiland Water Conservation, 1992, 11(1): 23-41.
DOI：

Chen Fayang, Wang Zhiming. Application of Universal Soil Loss Equation At Xiaoliang Water and Soil Conservation Experiment Station[J]. Bulletin of Soiland Water Conservation, 1992, 11(1): 23-41. DOI：

摘要

通用土壤流失方程式(USLE)是研究土壤侵蚀中被广泛采用的公式。但是鉴于土壤侵蚀的复杂性

在很多情况下

不同地方的土壤侵蚀情况千差万别。因而

在应用该方程的过程中

往往需要对引起土壤侵蚀的各种因子作必要的修正。本文应用广东省小良水土保持试验站2号试验场(纯桉树林)和3号试验场(光板地)多年采集的有关数据

在建立数据库的基础上

运用多元回归分析方法

成功地对该方程中的各个因子进行了切合实际的修正

从而得到了能用于本地区土壤侵蚀预测预报的经验公式。本文重点阐述了通用土壤流失方程中的侵蚀动能因子(R)

认为用5min 雨强(EI5法)或30min 雨强(即EI30法)来估算本地区的土壤流失量是比较切合实际的。

Abstract

Universal soil loss equation(USLE) is a widely-used equation in studying soilerosion in different locations under different conditions. In applying this equation

it is necessary to make some modifications to each factor affecting soil erosion. Some related data from No.2 testing fields (by pure eucalyptus forest) and No.3 testingfields (by bare land) collected for many years were used in this paper. Based on theestablishment of data base

multiple regression analysis method was employed to makesome practical modifications to each factor in the equation successfully thereby toobtain an empirical equation applicable to predict and pre-estimate soil erosion inthis region. This paper stresses the importance of R-factor in universal soil lossequation

and holds that it is more practical to estimate the amount of soil loss in thisregion using rainfall intensity in 5 minutes (EI 5 method) or rainfall intensity in 30minutes (EI 30 method).

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Keywords

references

美国土壤保持协会.《土壤侵蚀预报与控制》.北京:农业出版社,1981年

辛树帜,蒋德麒.《中国水土保持概论》.北京:农业出版社,1982年

H·N 马卡韦耶夫 P·恰C 洛夫.《侵蚀过程》.中国水土保持编辑部,1985年

王礼先.“侵蚀指数微分计算法”.《中国水土保持》,1987年

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