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Elevational patterns and determinants of plant diversity in the Baekdudaegan Mountains,South Korea:Species vs.functional diversity

查看全文 作　　者：LEE [1]ChangBae;CHUN [2]JungHwa;CHO [3]HyunJe 高影响力作者 机构地区：[1]Korea Green Promotion Agency, 121 Dunsanbukro,Seogu, Daejeon 302-831, Korea;[2]Division of Forest Ecology, Korea Forest Research Institute, 57 Hoegiro,Dongdaemungu, Seoul 130-712, Korea;[3]Korea Forest Ecosystems Institute, 7-19 Hobukro 43gil,Bukgu, Daegu 702-110, Korea高影响力机构 出　　处：《Chinese Science Bulletin》索引2013年第58卷第31期,共13页高影响力期刊 基　　金：supported from a part of the‘Korea Big Tree Project’ funded by the Korea Green Promotion Agency,Korea Forest Service 摘　　要：The elevational gradient present in mountainous areas provides the most powerful natural experimental system available to clarify the ecological and evolutionary responses of living organisms to geophysical influences.In this study,we explored the elevational patterns of plant species and functional diversity and the effects of area,mid-domain effect,climatic variables and net primary productivity on the observed diversity patterns along the ridge of the Baekdudaegan Mountains,South Korea.Rapoport’s elevational rule was also evaluated by examining the relationship between elevational range size of plant species and elevation.A total of 802 plant species from 97 families and 342 genera were found in 1100 plots along a 200-–1900-m elevational gradient along the ridge.The elevational patterns of plant species diversity along the ridge of the Baekdudaegan depicted distinctly hump-shaped patterns,whereas the functional diversity decreased monotonically with elevation.The mid-domain effect was the most powerful explanatory variable for species diversity patterns.However,climatic variables were better predictors for functional diversity.Moreover,Rapoport’s elevational rule was not supported.Our study suggests that different elevational patterns may be observed among different diversity measurements even in the same taxon and that there may be fundamental differences in the mechanisms underlying these diversity patterns. 关 键 词：垂直分布格局 功能多样性 植物多样性 山脉 韩国 植物物种多样性 海拔梯度 净初级生产力
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