河北小五台山华北落叶松林下生物多样性研究

Study on plant diversity of Larix principis-rupprechtii in Hebei Xiaowutai mountain

该文以河北省小五台山7块落叶松样地为研究对象,调查林下灌木层和草本层物种构成以及物种多样性指数、丰富度指数、均匀度指数等,研究结果显示:小五台山落叶松林下植物隶属于17个科,30个属,31个种,其中蔷薇科、毛茛科和菊科的物种数较多,在郁闭度为75%的华北落叶松林物种数、丰富度指数、多样性指数、均匀度指数较其它样地的都偏高,这一结论运用到生产上可以指导落叶松生产经营。

Seven Larch plots selected in this paper are taken as research objects.The species composition,species diversity index,species richness index and species evenness index of the understory shrub and herb layers were analyzed.The results showed that the understory plants of Larix principis-rupprechtii in Xiaowutai Mountain belonged to 17 families,30 genera and 31 species,among which Rosaceae,Ranunculaceae and Compositae had a large number of species,and the species diversity was 75%of Larix principis-rupprechtii species with canopy density.The richness index,diversity index and evenness index are on the high side.This conclusion can guide the production and management of Larix principis-rupprechtii.