克拉玛依植物群落物种多样性研究

根据30个样地102个样方的调查资料,采用Simpson多样性指数、Shannon-Wiener多样性指数、Gleason丰富度指数[17]、Simpson优势度指数与Pielou均匀度指数[16]对克拉玛依植物群落进行研究。研究结果表明:克拉玛依植物群落结构简单、物种稀少,群落物种多样性水平较低,群落多样性指数的顺序为:胡杨群落﹥柽柳群落﹥梭梭群落﹥琵琶柴群落﹥芦苇群落﹥假木贼群落﹥猪毛菜群落﹥盐节木群落﹥碱蓬+麻黄群落﹥盐穗木群落。随着水分与土壤盐碱度的变化,群落物种多样性出现相应的变化趋势:乔木群落﹥灌木群落﹥草本群落。

Species diversity of the plant community in Karamay

Based on 30 plots 102 quadrats of plant communities investigation in Karamay,using the species diversity index,richness index,evenness index and dominance index,the plant community of the area was studied.The results indicated that:the structure of the plant communities is simple and the species are fewer,the plant communities diversity level is lower.The sequence of plant communities diversity index is:Populus euphratica﹥Tamarix﹥Haloxylon ammodendron﹥Reaumuria songarica﹥Phragmites australis﹥Anabasis﹥Salsola collina﹥Halocnemum strobilaceum﹥Suaeda glauce + Ephedra﹥Halostachys caspica.With the change of water and salinity,the species diversity shows the change trend: Arbor community﹥shrub community﹥herbage community.