重庆市降雨侵蚀力（R值）的时空分布特征

According tO the continuous rainfall data of ten years at 81 stations，the R value of different areas in Chongqin City were calculated．A systematic analysis and research on the result was made based on the support of ArcView software．The results show：(1)Sharp differences of R value of month exist among different areas，and a notable dynamic change of R value during a year also exist in Chongqing City； (2)The Cz of R value of year is higher in middle area than that in west and northeast areas，and the R value of year is higher in east areas than that in west areas． Based on a fully discussion of the temporal and spatial characteristics of R value of different areas in Chongqing City，some good advices，for how tO prevent soil erosion effectively in Chongqing City，were finally made