文献类型：期刊文献

中文题名：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

英文题名：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

作者：贵立德[1];焦金鱼[2]

第一作者：贵立德

机构：[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

第一机构：甘肃省定西市水土保持科学研究所,定西743000

年份：2010

卷号：21

期号：2

起止页码：105

中文期刊名：地质灾害与环境保护

外文期刊名：Journal of Geological Hazards and Environment Preservation

语种：中文

中文关键词：嘉陵江流域;水土流失;驱动力因素

外文关键词：Jialing river basin; soil erosion; driving force factors

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。
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.