ANALYSIS OF SOIL EROSION STATUS AND ITS HARMS

Using newly developed soil loss equation of the sloping cultivated land in the northeast mountain region of Yunnan province,the author in the paper calculated the annual averge soil loss amount of the sloping cultivated land in this region,approached the seriousness and basic characteristics of soil erosion,and analysed its harms to the suitability and sustainability of cultivated land.The main conclusions were