Error Analysis on Gradient Information of Sloping Land Derived from the Low-resolution DEM
WANG Li et al(Key Laboratory of Mountain Environment and Regulation,Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041)
By using DEM,slope information was extracted automatically and soil erosion situation was investigated.Then compared with field survey and related research.The results showed that parallel ridge valley in Three Gorges Reservoir Area,the interbedded structures formed by Jurassic purple clay(page) rocks and human activities are the key controlling factors of small-scale sloping terrain.
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.