Study on the Topographic Effect on Soil Erosion Using RUSLE Model for Small Size Watershe_d

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• 出版年：2006
• 作者：CHEN Chuan-sheng；JIANG Xin
• 单位1：Central South University of Forestry and Technology
• 单位2：Supported by The United School of Agriculture Sciences of Kagoshima University,Japan(1366039)
• 出生年：1970
• 学历：Doctor
• 语种：中文
• 作者关键词：RUSLE；erosion index；rainfall；soil loss；small size watershed
• 起始页：186
• 总页数：3
• 刊名：水土保持研究
• 是否内版：否
• 刊频：双月刊
• 创刊时间：1985
• 主管单位：中国科学院
• 主办单位：中国院水利部水保所；中科院教育部水保生态中心
• 主编：刘国彬
• 卷：13
• 期：5
• 期刊索取号：P396.06141-1
• 核心期刊：中文核心期刊(第四版)农业基础科学类；中国科技论文与引文数据库核心期刊；中国科学引文数据库核心期刊

摘要

Soil erosion and subsequent sedimentation have caused serious environmental and soil degradation problems in Okina-wa Prefecture,Japan.This research aims at evaluating an availability of the Revised Universal Soilloss Equation(RUSLE)forpredicting the range of soil loss values for the Nago watershed in Okinawa.It shows that climatic conditions substantially influ-ence the rainfall amount as a function of the I₃₀ of the rainfall event.The rate of soil loss is higher with increasing in altitude dueto greater slope steepness.By rainfall data analysis,it is concluded that the large difference in soil loss between 2000 and 2001was due to concentrated heavy rainfallin the rainy season or the typhoon season