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影响嘉陵江流域水土流失的驱动力因素分析——以岷县境内燕子河流域为例
引用本文:贵立德,焦金鱼.影响嘉陵江流域水土流失的驱动力因素分析——以岷县境内燕子河流域为例[J].地质灾害与环境保护,2010,21(2):105-108.
作者姓名:贵立德  焦金鱼
作者单位:1. 甘肃省定西市水土保持科学研究所,定西,743000
2. 定西师范高等专科学校,定西,743000
基金项目:甘肃省长江流域嘉陵江支流燕子河小流域综合治理工程 
摘    要:以长江流域支流燕子河流域为例,选取了坡耕地面积比、垦殖指数、植被覆盖率、农业人口密度、农业总产值、农业人均产粮、农业人均年收入和沟壑密度等8个指标来表征影响区域水土流失状况的驱动力因素。运用灰色系统分析法确定了各个指标因子的关联程度,并根据综合干扰度进行了水土流失生态分区。

关 键 词:嘉陵江流域  水土流失  驱动力因素

ANALYSIS ON THE DRIVING FORCE AND INFLUENCING FACTORS ON SOIL EROSION OF THE JIALING RIVER BASIN--A CASE OF THE YANZI RIVER WATERSHED IN MIN COUNTY
GUI Li-de,JIAO Jin-yu.ANALYSIS ON THE DRIVING FORCE AND INFLUENCING FACTORS ON SOIL EROSION OF THE JIALING RIVER BASIN--A CASE OF THE YANZI RIVER WATERSHED IN MIN COUNTY[J].Journal of Geological Hazards and Environment Preservation,2010,21(2):105-108.
Authors:GUI Li-de  JIAO Jin-yu
Institution:1.Soil and Water Conservation Science Institute,Dingxi 743000,China;2.College of Geography and Environmental Sciences,Dingxi Normal University,Dingxi 743000,China)
Abstract:In this paper,as an example for the Yanzi river valley of the Changjiang river basin tributary,selected eight index of area ration of sloping land,Cultivation index,Vegetation coverage,density of agricultural population,agricultural GDP,agricultural per capita income and gully density to indicate the influencing states of soil erosion due to driving force factors,and then,determined connection degree of various indicators by using analysis method of gray system.Finally,according to comprehensive disturbance degree the paper suggested the soil erosion degree divisions.
Keywords:Jialing river basin  soil erosion  driving force factors
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