This study was conducted in Muli county, from July 3 to October 8 in 1992. Muliis located at middle section of eastside in Hengduan Mountains, 27°40'~29°10'N, 100°03' ~101°40'E, the relative altitude is above 2000 m, climate and vegetation are complex andchangeable at horizental level, and it possess obvious vertical zone. There are unpoleutedprimeval evergeen forest. The survey was carred out by sixteen types of habitats as fldri-plainfarmland, hillside farmland, residence farmland, alpine farmland, flnd-p...