浙江大雷山夏蜡梅群落植物物种多样性及其与土壤因子相关性  

Plant Species Diversity in Sinocalycanthus chinensis Community and its Correlation with Soil Factors in Dalei Mountain of Zhejiang Province

作　　者：刘丽丽[1,2] 金则新[2] 李建辉[2] 

机构地区：[1]北京林业大学自然保护区学院,北京100083 [2]台州学院生态研究所,临海317000

出　　处：《植物研究》2010年第1期57-64,共8页Bulletin of Botanical Research

基　　金：国家自然科学基金项目(30870392);浙江省自然科学基金项目(Y504220)

摘　　要：分别采用物种丰富度、物种多样性指数和群落均匀度等指标对浙江省大雷山夏蜡梅群落植物物种多样性进行测定,并通过相关分析对各种指数与土壤因子的关系进行研究。据10个样地统计,共有维管植物74科、165属、193种。从种子植物属的地理成分来看,温带分布的类型居多。不同群落木本植物的物种丰富度和多样性指数以杉木+木荷林最高,群落均匀度以杉木林最高,毛竹林的各项指数最低。草本植物的物种丰富度以杉木+马尾松林最高,杉木林最低;多样性指数和群落均匀度以竹林最高,短柄枹+格药柃林最低。在不同群落的垂直结构中,乔木层的物种丰富度和多样性指数均小于灌木层,草本层的物种多样性在不同群落间变化较大。相关分析表明,夏蜡梅群落物种多样性与土壤有机质含量相关性较大,其中,木本植物物种多样性与有机质含量显著正相关,草本植物与有机质含量显著负相关。Plant species diversity of Sinocalycanthus chinensis community in Dalei mountain of Zhejiang Province was determined by using the index of species richness,species diversity and community evenness,and the relationships between the biodiversity indices and soil factors were studied by employing correlation analysis.According to the statistics of ten plots,there are altogether 74 families of vascular plants which can be subdivided into 193 species,165 genera.Most of them are distributed in the temperate zone in terms of the geographic composition of seed plant genera.In different communities,the species richness and species diversity index of the woody plants were highest in Cunninghamia lanceolata＋Schima superba forest,the community evenness was highest in C.lanceolata forest,and these index were lowest in bamboo grove.The species richness of the herbal plants was highest in C.lanceolata＋Pinus massoniana forest and lowest in C.lanceolata forest.The species diversity index and community evenness of the herbal plants was highest in bamboo grove and lowest in Quercus serrata var.brevipetiolata＋Eurya muricata forest.In the vertical structure of these different communities,the species richness and species diversity index of tree layer were lower than those of shrub layer,the species diversity of herb layer was greatly varied in different communities.The correlation analysis showed that there was great correlation existing between the species diversity of S.chinensis community and soil organic matter content in which organic matter content was positively related to species diversity of the woody plants but negative to the herbal plants significantly,respectively.

关 键 词：夏蜡梅 群落 物种多样性 土壤有机质 

分 类 号：Q948[生物学—植物学]