基于RS和GIS的榆林市流域水土流失动态研究

Xiaofeng Wang, Yonghua Zhao
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摘要

水土流失是全球最严重的环境问题之一。在榆林市,这种现象非常严重。以DEM等数据为基础,利用RS和GIS技术,基于一般土壤侵蚀方程RULSE模型,计算了榆林市不同年份的入侵土壤数量,完成了入侵土壤的空间分布图,进行了水土流失动态研究,并对影响因素进行了分析。结果表明,由于近年来气象站和当地政府的政策和行为,榆林市土壤侵蚀总体上得到了一定的改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Dynamic of Yulin Distract Water and Soil Loss Based on the RS and GIS
Water and soil erosion is one of the most serious global environment. In Yulin Distract this phenomenon is very serious. Based on DEM and other data, using RS and GIS technique, based on general soil erosion equation RULSE model, The study has calculated the quantity of invaded soil in different years, completed the spatial distribution picture of the invaded soil, carried on the dynamic research on water and soil loss and analyses the factors in Yulin. The result indicated that, on the whole soil erosion in Yulin has been improved in some certain, due to the station and local government's policies and behaviors in recent years.
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