对大明山不同环境梯度的物种多样性进行了分析。研究表明 ,时间和空间上的环境异质性有利于增加物种多样性 ,但其物种多样性的增加是非线性的。人类活动的干扰有利于生活周期短的物种发展 ,而不利于生活周期长的物种。环境梯度的增大 ,使群落的共有种减少 ,相似性降低 ,β多样性增大 The species diversity of different environmental gradients in Daming Mountain was analyzed. Studies have shown that temporal and spatial heterogeneity of the environment contributes to increased species diversity, but increases in species diversity are non-linear. Interference from human activities favors the development of species with short life cycles, but not species with long life cycles. With the increase of environmental gradient, the common species in the community decreased, the similarity decreased and the β diversity increased