Phytocoenological Features of Tsoongiodendron odorum Forest in Wanmulin Nature Reserve
Zheng Qunrui(Administrative Station of Wanmulin Nature Reserve,Jianou, Fujian 353105)Zhang Xingzheng; Yao Qingtan; Chen Zenhua(Jianou Forestry Committee,Jianou,Fujian 35310O)
Tsoongiodendron odorum forest is one of the main forest types in Wanmulin Nture Reserve,located in the mid-subtropical region in China. Analysis of structure and dynamic indicated that the community was dominated by some species of Magnolia family.The tree layer of the forest can be divided into two sublapers.Tsooglodendron odorum,25～33 metres in height,dominates the first sublayer.Sycopsis dunnii,Litses Subcorlacea and Sloanea sinensis dominate the second sublayer.The shrub layer,altogether 33 species,is less than 3 metres in height and dominated by Litsea subcoriacea, Maesa Japonica,Engelhardtia fenzelii and Cinnamomum Chekiangense etc, In the herb layer are only two fern species. Few Tsoongioderdron odorum seedlings under the canopy suggest its dominance in the fores will decrease as the succession proceeds.