SHANG Heying,YIN Zhongdong,ZHANG Peng.Analysis on Soil Erosion Characteristics of Different Types of Small Watersheds in Centre Sichuan Province[J].Research of Soil and Water Conservation,2015,22(05):5-8.
川中不同类型小流域土壤侵蚀特征分析
- Title:
- Analysis on Soil Erosion Characteristics of Different Types of Small Watersheds in Centre Sichuan Province
- Keywords:
- small watershed; land use type; soil erosion
- 分类号:
- S157.1
- 摘要:
- 以川中小流域为研究对象，2004年第5期小流域竣工验收报告为基础数据，以流域土地利用方式面积比例为指标进行聚类，将小流域分为不同类型，然后分别建立以不同类型小流域的土壤侵蚀量为因变量，用地面积为自变量的多元线性回归方程。从而比较区域内部小流域之间的差异，分析不同类型小流域的土壤侵蚀特征，以期更有针对性地为小流域综合治理提供理论和实际依据。研究表明：（1）根据其主要土地利用方式，研究区小流域分为4类；（2）不同类型小流域，水土流失主要及最大来源、侵蚀模数等特征有显著差异。
- Abstract:
- Taking center Sichuan Province as a case study, we used the database from the completed report for its fifth erosion protection project and divided the study area into various small watersheds using cluster analysis in terms of the area proportion for different land-uses. Then we quantified the relationship between soil erosion (dependent variable) and land-use area (explanatory variable) by multiple linear regression analysis. We also analyzed the differences in soil erosion features and land-use patterns among various small watersheds in the study area. The results show that there are four categories of small watersheds according to land-use patterns, and the sources and rate of soil erosion are significantly defferent among these small watersheds.
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备注/Memo
收稿日期:2014-10-19;改回日期:2014-12-09。
基金项目:国家重点基础研究发展计划（2007CB407207-1）；卡拉贝利工程水土流失特征研究课题（klbl2014003）
作者简介:尚河英(1988-),女,河北邯郸人,在读硕士研究生,研究方向为水土保持。E-mail:shangheying2012@sina.com
通讯作者:尹忠东(1969-),男,湖南安仁人,博士,副教授,主要从事水土保持与荒漠化防治研究。E-mail:yaayp@sina.com