凤阳山常绿阔叶林乔木层优势种群生态位分析  

Study on the niche of the dominant tree species in the evergreen broad-leave forest in Fengyangshan

作　　者：高俊香[1] 鲁小珍[1] 马力[1] 胡绍庆[2] 周丽飞 马毅 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]浙江理工大学建筑工程学院,浙江杭州310018 [3]浙江凤阳山百山祖国家级自然保护区凤阳山管理处,浙江龙泉323700

出　　处：《南京林业大学学报（自然科学版）》2010年第4期157-160,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业局林业公益性行业科研专项项目(200704005/wb02)

摘　　要：基于对凤阳山自然保护区常绿阔叶林的样地调查,采用定量分析的方法,测算了10种乔木层优势种群的生态位宽度、生态位相似性和生态位重叠。结果表明:(1)分别用Levins和Shannon-Wiener两指数测得的生态位宽度结果存在较大的差异性,但两种结果均表明木荷的生态位宽度值最大,其生态位宽度值B(L)i和B(sw)i分别为0.771、1.325。(2)该群落优势种群间的生态位相似性比例较大,表明优势种群之间对资源的利用有较高的相似程度。生态位相似性比例与生态位宽度之间无明显的相关关系。(3)该群落优势种群间的生态位重叠值较大,且Lih值与Lhi值基本一致,说明优势种群间有相似的生态学特性。另外,生态位相似比例大的生态位重叠值也较大,反之亦然。Plots investigation based on evergreen broad-leave forest in Fengyangshan Nature Reserve, we used the method of quantitative analysis to measure the niche breadths, niche similarity and niche overlap of ten dominant tree species. The results showed that： （1）The niche breadths were measured by Levins and Shannon-Wiener index respectively, there were many differences between the results, but the largest niche breadth of them was Schima superba, the value of B_（L）i and B_（sw）i were 0.771 and 1.325 respectively. （2）The niche similarities among the dominant species were very big, this showed that they had high similarity in using the resources. There was no obvious correlation between niche similarity and niche breadths. （3）The niche overlap among the dominant species were very big, and the values of L_ih and L_hi were almost the same, this fully showed that dominant species had similar ecological characteristics. If the niche similarity was big the niche overlap was big, so did the opposite.

关 键 词：常绿阔叶林 生态位宽度 生态位相似性 生态位重叠 凤阳山 

分 类 号：S718.5[农业科学—林学]