Liu Zhigang1£¬Jiang Zhen2
1. Department of Soil and Water Conservation, YRCC, Zhengzhou, Henan Province, China  450003£»2. Department of Personnel Labour Education , YRCC, Zhengzhou, Henan Province, China  450003

Abstract: Based on GIS and Remote Sensing Technology,, the procedure of fast assessment to watershed surface erosion susceptibility by use of decision trees method in the Jiuyuangou watershed on the  Loess Plateau was presented. Obtaining the influence factors of soil erosion, the rule of soil erosion classes and calculation of results were included  in the detailed procedures . The research shows that this method is simple and versatile and be suitable for the poor data areas.

Key words: Decision tree; GIS; Remote Sensing Image; Soil and Water Loss; Jiuyuangou Watershed