泰山侧柏、麻栎林森林群落的β多样性研究

STUDY ON β-DIVERSITY OF PLATYCLADUS ORIENTALIS AND QUERCUS ACUTISSIMA FOREST COMMUNITIES IN MT. TAISHAN

本文通过对泰山两种主要森林类型（侧柏林和麻栎林）的研究表明：①随着海拨高度的增加，森林群落的物种数逐渐增多，而个体数逐渐减少；②森林群落间的差异随海拨高差的增加而增大；③在泰山海拨６００～８００ｍ的区域，物种的更替最为明显；④Ｗｈｉｔａｋｅｒ指数和Ｂｒａｙ－Ｃｕｒｔｉｓ指数均能较好地描述森林群落的β多样性。

This paper has studied Platycladus orientalis and Quercus acutissima forest type in Mt.Taishan.The results show that①with altitude rising,the kind of plant species increase,but their amounts decrease,②the bigger the difference between altitudes,the more clear the difference between communities,③when altitude is 600￣800 meters,the replacement of species is very conspicuous,④Whittaker and Bray-Curtis indexes are suitable for describing forest community β-diversity.