【作者】 刘静艳； 黄英姿；

【Author】 Liu Jingyan~1,Huang Yingzi~2 (1 School of Biological Science,Zhongshan University,Guangzhou 510275) (2 Department of Mathematics,Guangdong Commercial College,Guangzhou 510320)

【机构】 中山大学生命科学学院； 中山大学昆虫研究所； 广东商学院数学部；

【摘要】 在有关陕西米仓山南坡森林植被性质及分类等已有研究的基础上,本文着重就优势种群特征及群落的多样性进行分析。研究表明,各样地的多样性指数与样地中落叶树种所占的比例成显著的负相关关系。常绿种群在该群落中处于显著的优势地位,具有比较稳定的发展趋势,而落叶种群为衰老型种群;常绿优势种群包石栎具有最强的竞争能力,如排除人为干扰,将可能发展成为本区森林植被的生态优势种群;种群分布格局服从集群式分布。更多还原

【Abstract】 In this paper,the characteristics of the dominant populations and the community diversity on the southern slope of the Micanshan Mountain,Shanxi Province,were analyzed.The results show that the diversity index of each quadrat had a significant negative relation to the percentage of the deciduous trees,and that populations of evergreen trees played a more important role in the forest and showed a more stable development tendency than the populations of deciduous trees, which showed a declining development tendency.In the absence of the man-made large-scale disturbance,populations of Lithocarpus cleistocarpus were found to have the strongest competitive ability and would probably become the dominant populations of the forest vegetation in this area.The spatial distribution of the main populations in this area appeared to be of the aggregated pattern.更多还原