流域植被覆盖度变化对湟水河含沙量的影响  

Influence of vegetation coverage change on sediment content in Huangshui River Watershed

作　　者：陈首彬[1] 赫晓慧[1,2] 王芳[2] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450001 [2]中国水利水电科学研究院,北京100038

出　　处：《人民长江》2013年第19期78-80,共3页Yangtze River

基　　金：国家自然科学基金项目(41101095)

摘　　要：为分析植被覆盖度变化对湟水河含沙量的影响,应用遥感、地理信息系统与数学分析相结合的方法,分析了该流域近15年来植被覆盖度变化与含沙量变化的趋势及二者之间的关系,并明确了引起这些变化的因素。结果表明,湟水河流域内的含沙量变化是自然因素和人类活动引起的地表植被覆盖度变化情况的综合反映,流域内的含沙量与地表植被覆盖度呈明显的负相关性,同时含沙量还会受到人类活动等其他因素的影响。For studying the influence of vegetation coverage change on sediment content of Huangshui River watershed, we an- alyze the trends of vegetation coverage change and sediment content change and their relations in recent 15 years, and further explore the causes of these changes by using remote sensing （RS） , geographic information system （GIS） and mathematical analysis method comprehensively. The results show that the sediment content change of Huangshui River basin is a comprehensive response to vegetation coverage variation that is induced by natural factors as well as human activities. In the watershed, sediment content has a significant negative relationship with land surface vegetation coverage, besides being affected by other factors such as human activities.

关 键 词：植被覆盖度 含沙量 遥感 地理信息系统 湟水河 

分 类 号：S157[农业科学—土壤学]