摘要
以富屯溪流域为研究对象,运用GIS软件的空间分析功能提取流域的高程、坡度、基础设施缓冲区、居民点缓冲区等水土侵蚀影响因子的数字格式,分别与流域土壤侵蚀图进行叠加分析,比较各侵蚀因子对侵蚀的影响关系.结果显示,高程和坡度与土壤侵蚀程度呈正相关关系;在人为因素的干扰下,土壤侵蚀主要发生在距离居民点1000 m及距离基础设施500m之内.
Based on GIS, digital data of erosion factors in various elevation, solpe and buffer area of infrastructure and residential area in the watershed of Futun River were extracted, which were used for overlay analysis of soil erosion with erosion figure. The resalt showed that elevation and solpe were positively correlatod with soil erosion, and circumjacent areas of less than 1000 meters away from residential area and 500 meters away from infrastructure eroded more severely.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2008年第2期216-220,共5页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
福建省科技攻关计划重点项目(2005N006)
福建省教育厅资助项目(JA04185)
关键词
GIS
富屯溪流域
土壤侵蚀
叠加分析
GIS
watershed of Futun River
soil erosion
overlay analysis
