With the survey data in Jiufeng National Forest Park,we studied the community structure and species diversity of three kinds of typical artificial forest( Larix gmelinii,Quercus variabilis and Pinus tabulaeformis). The diversity index were consistent with the Simpson index of the biological diversity of the layers,with the largest species diversity of herb layer in L. gmeliniiis plantation,the largest species diversity of shrub layer in Q. variabilis plantation,and the largest species diversity of tree laye...
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