戴震公园不同群落类型物种多样性与更新调查分析

Investigation and Analysis of Species Diversity and Regeneration of Different Types of Community in Daizhen Park

通过对黄山市城区戴震森林公园中森林群落进行调查,分析不同群落类型的物种多样性及更新情况。结果表明,不同优势树种组成的群落物种多样性存在一定差异,樟树-金钱松-椤木石楠所组成的群落,其丰富度和Shannon-Weine物种多样性指数高,分别为3.9712、2.2235;樟树-重阳木-水杉群落的Simpson指数和均匀度指数最高,分别为0.8869、2.1043;桂花群落相应指标最小,分别为0.3761、0.2782、0.1296、0.5831。更新特征是樟树-金钱松-椤木石楠群落最优,而桂花群落调查期间无更新。

By surveying and analying the species diversity and forest regeneration of the forests in Daizhen Park,Tunxi District,Huangshan City,results showed that there were some differences of species diversity in different compositions of dominant tree species：Richness and Shannon-Weine Species Diversity indices are high in Cinnamomum camphora-Pseudolarix kaempferi-Photinia davidsoniae comm.,come to 3.9712 and 2.2235.Simpson Diversity index and Pielou Evenness in Cinnamomum camphora-Bischofia polycarpa-Metasequoia glyptostroboides comm.are high too,they are 0.8869 and 2.1043.The indicators of Osmanthus fragrans comm.are down on the list,turns to 0.3761,0.2782,0.1296,0.5831.The forest regeneration trends are also different：C.camphora-P.kaempferi-P.davidsoniae comm.is regenerationed in good condition;but it is opposite in O.fragrans comm..