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采用样带网格调查方法,选取β多样性测度的相似度系数(CS)和Cody指数(βC),分析帽儿山地区人工天然混红松林群落的β多样性,并与天然次生山杨林群落对比。结果表明:前者与后者群落的草本层、灌木层、乔木层及群落的相似性系数都较低,其中以草本层最低;物种变动速率较大,其中以草本层物种变动速率最大。透光抚育对人工天然混交红松群落植物多样性的影响机制,主要是通过增加草本层和灌木层的物种多样性,而减少乔木层的物种多样性来调节。
Using the sample grid approach, the β diversity index (CS) and the Cody index (βC) were selected to analyze the β diversity of the natural mixed Pinus koraiensis forest in Maoershan region, Forest community comparison. The results showed that the similarity coefficients of the herb layer, the shrub layer, the tree layer and the community in the former and the latter community were lower, among them, the herb layer was the lowest, the rate of species change was large, and that of the herb layer species was the highest. The mechanism of light-induced tending on the plant diversity of artificial mixed Pinus koraiensis communities was mainly adjusted by increasing the species diversity of the herb layer and shrub layer and decreasing the species diversity of tree layer.