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Research on the Characters of Water-conservation Forest Gymnosphaera podophylla Community in Jiulong Lake Area of Zhaoqing

XU Jin-hai et al(School of Life Science,Zhaoqing University,Zhaoqing,Guangdong 526061)  
On the basis of the surveying data of water-conservation forest Gymnosphaera podophylla community in representative plots in Jiulong Lake area of Zhaoqing,its characters were studied.The results showed that there were 143 species of vascular plants in the community,which belonged to 72 families and 111 genera.The tropic had absolute dominance on the distribution types of families and genera,reflecting its characteristics of south sub-tropic flora with the tropic as the main.The morphological characters of the G.podophylla community mainly insisted of herbaceous phanerophytes with simple leaf and nanophyll with entire margin as major leaftype.It had obvious hierarchy in population consisted of tree layer,shrub layer,herb layer and interlayer plants.
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