摘要
以玉溪市为研究区域,运用GIS软件对影响土壤侵蚀的因子进行叠加分析,获取玉溪市土壤侵蚀敏感性等级分布图,并与土壤侵蚀现状图加以对比,结果显示:发生土壤侵蚀的地区一定是土壤侵蚀的敏感地区,但土壤侵蚀的敏感地区不一定发生土壤侵蚀:森林覆盖量、质量和人为活动是影响土壤侵蚀的主要原因。
Taking Yuxi region as a case, superposition analysis of influencing soil erosionFactor by GIS produces sensitivity level distribution map which is compared with the map of soil erosion situation. The results show that the areas of being soil erosion must be sensible areas of soil erosion, however, not every sensible areas of soil erosion will be destroyed by soil erosion. Forestry cover rate, environmental quality and man - made activities are the main factors influencing soil erosion.
出处
《云南环境科学》
2006年第2期57-59,共3页
Yunnan Environmental Science
