期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2005
卷号：XXXVI-2/W25
出版社：Copernicus Publications
摘要：Taken 1:10000 Scale topographic map in the small watershed of Genxi River as an example, under the support of ARCVIEW and ARC/INFO software of GIS, through digitizing topographic map and other special maps to set up a spatial geodatabase. This paper forms a digital elevation model and has an analysis of slope and aspect, also discovered knowledge referenced for soil and water conservation. The results show that slopes of most of the soil and water losing region are between 15° to 25° , and 45° to 90° for the landslip region, the aspect of which is almost to the south or around the south. At last, the basic measures for fathering soil and water loss has been brought forward on the base of data mining and knowledge discovering
关键词：DEM; Data mining; Knowledge discovering; Slope and aspect analysis; Slump gullies; Genxi River
