Abstract: Through plot investigation and by using the indices of species diversity and community evenness,this paper analyzed the plant diversity of evergreen broadleaf forests in Taishan Mountain of Lishui,Zhejiang Province.The results showed that the species number of arbor in the evergreen broadleaf forest community was in simplification,and the species diversity and evenness varied among different community layers.The species diversity index of shrub layer was the highest,followed by arbor layer,and herb layer.Based on the habitat,community structure and species composition,three main community typesi.e.,Schima superba-Castanopsis eyrei,Cyclobalanopsis glauca-Lithocarpus glaber,andCyclobalanopsis stewardiana were recognized.

Key words: Aluminum form, Acid Sulfate Soils, Sequential extraction