中亚热带丝栗栲群落的物种周转速率研究

Studies on the Species Turnover Rate of the Middle-subtropical Castanopsis fargesii Community

在中亚热带丝栗栲群落依不同坡向不同坡位设置8块样地,应用β多样性指数研究了该群落的物种周转速率。结果表明,丝栗栲群落中物种周转速率的最大值出现在中坡的阳坡,该结论对探索正红菇的生态条件提供了重要的参考价值。同时应用二元属性数据进行测度,结果表明βWS与βT具有相同的生态学含义;βR能较好地反映该丝栗栲群落沿不同坡向及坡位的物种周转速率。

Eight quadrats were set in different positions and different directions of the slope in the middle-subtropical Castanopsis fargesii community, then β-diversity indices were used to analyze the species turnover rate in the community. The results which offer important reference to the research on the ecological condition of Russula vinosa lindbl Fr. showed that the quadrats which were distributed on the middle and southern slope had the highest species turnover rate. Measured with binary data, the result showed that βws and βT had the same means on ecology;βR well reflected the species turnover rate of the community.