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格氏栲群落林窗边缘效应研究
引用本文:刘金福,洪伟,李俊清,林荣福.格氏栲群落林窗边缘效应研究[J].应用生态学报,2003,14(9):1421-1426.
作者姓名:刘金福  洪伟  李俊清  林荣福
作者单位:1. 福建农林大学林学院,南平,353001
2. 北京林业大学资源与环境学院,北京,100083
基金项目:国家自然科学基金项目(30270261),福建省自然科学基金项目(D0210016),福建省教委科学基金资助项目(K20043)
摘    要:应用Shannon—Wiener物种多样性指数、Simpson生态优势度指标以及边缘效应强度指数,对福建三明格氏栲保护区森林群落林窗的边缘效应现象进行了研究.格氏栲群落的38个林窗样地不同部位上述指标的测定结果表明,用物种多样性指数测定的林窗边缘效应强度值为0.7~1.3左右;而用生态优势度值测定的林窗边缘效应强度值为0.3~1.8左右,林窗边缘区由于边缘效应的作用有增大物种多样性的趋势,林窗的面积及林窗所在的森林群落类型,都对处于不同发育阶段的林窗的边缘效应强度产生影响.从而为格氏栲群落生物多样性保护与森林经营管理提供理论基础.

关 键 词:格氏栲群落  林窗  物种多样性  边缘效应
文章编号:1001-9332(2003)09-1421-06
修稿时间:2001年7月30日

Gap edge effect of Castanopsis kawakamii community
LIU Jinfu,HONG Wei,I.I Junqing,LIN Rongfu.Gap edge effect of Castanopsis kawakamii community[J].Chinese Journal of Applied Ecology,2003,14(9):1421-1426.
Authors:LIU Jinfu  HONG Wei  II Junqing  LIN Rongfu
Institution:Forestry College of Fujian Agriculture and Forestry University, Nanping 353001, China. ljf802@public.npptt.fj.cn
Abstract:This paper reported the characters of gap edge effect of Castanopsis kawakamii community in Sanming, Fujian Province. The species diversity, ecological dominance, and edge effect strength of 38 forest gaps with different development stages in different stands of Castanopsis kawakamii community were measured, and Shannon-Wiener index, Simpson index, and index of edge effect strength were calculated. The results showed that the index of the gap edge effect of Castanopsis kawakamii community was about 0.7-1.3 (according to the species diversity index) and 0.3 -1.8 (according to the ecological dominance index). The gap edge effect had the trend of increasing the species diversity of forest communities. The index of gap effect was affected by the size and development stage of the gap and the related forest type. The study provided a theoretical basis for the maintenance of species diversity and the forest management in Castanopsis kawakamii community.
Keywords:Castanopsis kawakamii community  Gap  Species diversity  Edge effect  
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