Abstract: Based on the numerical classification of forest communities in Macaca mulatta habitat in Lishan National Nature Reserve, species diversity of these forest communities in the reserve was evaluated by species richness index, species diversity index and evenness index. Furthermore, the correlation between diversity indices among different synusiae of forest communities was analyzed. The results indicated that: (1) The variation patterns of the diversity of the twelve associations could be well represented by species richness index, species diversity index and evenness index. (2) The variation tendencies of Patrick richness index (R), Shannon diversity index (H), Hill diversity index (N₁ and N₂), Alatalo evenness index and Pielou evenness index were similar for all forest communities, while the tendency of Simpson diversity index (λ) was opposite to that of H index. (3) Changes of the richness, diversity, and evenness indexes of the forest communities presented a tendency of diversification. The richness index and diversity index in various synusiae were in order of herb layer > arbor layer > shrub layer. However, differences of evenness index in each synusia existed among the different forest communities. Greater difference of evenness index was observed in shrub layer among different communities, while lesser difference of evenness index was in arbor layer and herb layer.

Key words: antioxidase system, osmotic adjustment, photosynthesis, drought and recovery, Taxodium hybrid ‘Zhongshanshan’