The region governed by Sichuan Province at lower reaches of Jing-shajiang River is mostly lived in by national minority, being a poor andbackward place. According to local geographical condition, soil and waterloss level and the current state of agricultural development as well as itsdeveloping trend it is divided into dry and hot valley area, middle moun-tain, hills, high and middle mountain and mountainous area.It is raisedto work out combrehensive measures to control, to suit measures to localconditions, to develop rationally and to protect actively, to combine soiland water conservation with the development of commercial economy inorder to enhance virtuous ecological circle.