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作 者:Shiren Chen Zeyu Yang Yuhang Wu Yong Li Longchenxi Meng Luyao Chen Yingqun Chen Xuerong Shao Mingzhen Sui Guangqi Zhang Danmei Chen Yuejun He Lipeng Zang Qingfu Liu
机构地区:[1]Research Center of Forest Ecology,College of Forestry,Guizhou University,Guiyang,550025,China [2]Guizhou Libo Karst Forest Ecosystem National Observation and Research Station,Libo,558400,China
出 处:《Forest Ecosystems》2024年第6期940-950,共11页森林生态系统(英文版)
基 金:supported by the National Natural Science Foundation of China(Nos.32360380,32360278);the Guizhou Provincial Key Technology R&D Program(General[2023]111);the Basic Research Program in Guizhou Province(ZK[2022]General 098,ZK[2022]General 036,ZK[2022]General 079).
摘 要:The interspecific variations of plant functional traits can characterize the niche positions of species within communities,while the intraspecific variations can accurately display the species’niche breadth.Revealing relative contributions of intra-and interspecific variations to plant functional community structure is crucial in understanding how the species coexist together,especially in species-diverse ecosystems.To explore how the intra-and interspecific variations of plant functional traits change along the successional pathway in heterogeneous conditions,we established a series of plots and measured main plant functional traits along the natural regeneration in karst forest ecosystems.By quantifying the intra-and interspecific variations of plant functional traits,we found that the changes in intraspecific variations were relatively lower compared to changes in interspecific variations throughout the natural regeneration.Further analysis showed that the community spatial structure contributed more to the intraspecific variations of plant functional traits,while the soil physicochemical properties contributed more to interspecific variations.Our study suggested that tree species might tend to narrow their niche and change the positions to release the niche overlap when faced with heterogeneous habitat conditions.
关 键 词:Plant functional traits Intraspecific variation Natural regeneration Community spatial structure
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