Abstract:

In the systems for classifying vegetations,the three primary classes:vegetation-type-formation-association and the two subsidary classess,the subvegetation-type and formation-group,are applied in this article.Forests of subtropical evergreen broad-leaf trees whit species of Fagaceae,Lauraceae,Magnoliaceae,Theaceae and others belong to "evergreen broad-leaf forests in Yunnan represents the western type of the subropical region of China,This type is divided into three subvegetation-types:semihumid,monsoonal and mountain humid evergreen broad-leaf forest.