Analysis of the Species Diversity of Bush Communities of Jiulongshan in Beijing / 北京九龙山灌丛植被的物种多样性分析

• Published in: Forest research (Beijing) Vol. 7; no. 2; p. 143
• Main Authors: 刘创民, 李昌哲, 苏云良, 张满屯, 焦桐林, 金铃
• Format: Journal Article
• Language: Chinese
• Published: Beijing Chinese Academy of Forestry 01.01.1994
• Subjects: Biodiversity; Beijing China
• ISSN: 1001-1498

The species diversity of 18 bush communities of Jiulongshan in Beijing are measured by means of Shannon—Wiener index,And community evenness and ecological dominance of these plant communities are measured also,The Shannon—Wiener species diversity index is around 1.55～3.44,the communities evenness 0.54～0.89,and the ecological dominance 0.12～0.47.The species diversity increases as the habitat condition becomes better,latitude higher,and commtinity structure more complicated.The species diversity has intimate correlation with community structure,which goes up with the ascent of commtinity evenness and goes down when the ecological dominance increases. The restilt of the research will help to raise the level of study on the structure model of natural shrub forest for water and soil conservation. 应用物种多样性的Shannon-Wiener指数(H)、均匀度(J)、生态优势度(C)等指标,测定了北京九龙山18个天然次生灌丛植物群落的物种多样性、均匀度和生态优势度。结果是;H为1.55～3.44,J为0.54～0.89,C为0.12～0.41.物种多样性随生境条件渐好、海拔的递增以及群落结构的复杂性而递增。物种多样性与群落结构有密切关系,它随均匀度增大而增加,与生态优势度的增加而递减。这项研究有助于对水土保持天然灌木林结构模式的研究