不同地点蒙古栎群落相似性的研究

The Research on the Similarity of Quercus mongolica Community in Different Sites

通过 1 3个地点蒙古栎群落物种相似性与两地之间距离的回归比较 ,发现蒙古栎群落物种相似性的大小一般决定于不同地点之间的地理位置 ,两地之间距离越近 ,其相似性越高 ,反之则越低 ,但是群落不同的演替阶段也影响群落的相似性。通过分析蒙古栎群落物种组成的差异及物种相似性系数的比较 ,蒙古栎群落可分为大兴安岭蒙古栎群落、长白山蒙古栎群落、辽西蒙古栎群落和辽冀蒙古栎群落等几种类型。

The similarity of Quercus mongolica community in different sites was calculated. The coefficient of similarity is related to the distance between two sites in general. The shorter the distance between two sites, the bigger the coefficient of similarity is. Through the comparison among coefficient of similarity, Quercus mongolica communities could be divided into 4 types. They were Quercus mongolica communities in Daxinganling, Quercus mongolica communibies in Changbaishan, Quercus mongolica communibies in the west of Liaoning Province, Quercus mongolica communities in the south of Liaoning Province and Hebei Province.