文献类型：期刊文献

中文题名：Functional trait space and redundancy of plant communities decrease toward cold temperature at high altitudes in Southwest China

作者：Lan Zhang[1] Xiaojuan Liu[1] Zhenhua Sun[2] Wensheng Bu[3] Franca J.Bongers[1] Xiaoyang Song[2] Jie Yang[2] Zhenkai Sun[4] Yin Li[5] Shan Li[1] Min Cao[2] Keping Ma[1] Nathan G.Swenson[6]

第一作者：Lan Zhang

机构：[1]State Key Laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;[2]Key Laboratory of Tropical Forest Ecology,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla 666303,China;[3]Key Laboratory of State Forestry Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed,College of Forestry,Jiangxi Agricultural University,Nanchang 330045,China;[4]Key Laboratory of Tree Breeding and Cultivation,Forestry and Grassland Administration,Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China;[5]Fujian Provincial Key Laboratory of Resources and Environmental Monitoring and Sustainable Management and Utilization,Sanming University,Sanming 365004,China;[6]Department of Biological Sciences,University of Notre Dame,Notre Dame,Indiana 46556,USA

年份：2023

卷号：66

期号：2

起止页码：376-384

中文期刊名：中国科学：生命科学英文版

外文期刊名：Science China: Life Sciences

收录：CSTPCD;;Scopus;CSCD:【CSCD2023_2024】；PubMed;

基金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB31000000);the National Natural Science Foundation of China(31870409,32061123003);the National Science and Technology Ministry Major Project(2017YFA0605103);CAS Interdisciplinary Innovation Team(JCTD-201806);the Youth Innovation Promotion Association CAS(2019082);the National Science Foundation of the United States(DEB-2029997)。

语种：英文

中文关键词：leaf trait;plant community;hypervolume;redundancy;altitude;natural forest

分类号：Q94

摘要：Plant communities in mountainous areas shift gradually as climatic conditions change with altitude. How trait structure in multivariate space adapts to these varying climates in natural forest stands is unclear. Studying the multivariate functional trait structure and redundancy of tree communities along altitude gradients is crucial to understanding how temperature change affects natural forest stands. In this study, the leaf area, specific leaf area, leaf carbon, nitrogen, and phosphorous content from 1,590 trees were collected and used to construct the functional trait space of 12 plant communities at altitudes ranging from 800 m to 3,800 m across three mountains. Hypervolume overlap was calculated to quantify species trait redundancy per community. First,hypervolumes of species exclusion and full species set were calculated, respectively. Second, the overlap between these two volumes was calculated to obtain hypervolume overlap. Results showed that the functional trait space significantly increased with mean annual temperature toward lower altitudes within and across three mountains, whereas species trait redundancy had different patterns between mountains. Thus, warming can widen functional trait space and alter the redundancy in plant communities. The inconsistent patterns of redundancy between mountains suggest that warming exerts varying influences on different ecosystems. Identification of climate-vulnerable ecosystems is important in the face of global warming.