Climate change filtered out resource-acquisitive plants in a temperate grassland in Inner Mongolia,China

作     者：Heying Jing Xingshuo Xiong Feng Jiang Xucai Pu Wenhong Ma Daijiang Li Zhongling Liu Zhiheng Wang 

作者机构：Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of EducationCollege of Urban and Environmental SciencesPeking UniversityBeijing 100871China Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian PlateauSchool of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China Department of Biological SciencesLouisiana State UniversityBaton RougeLA 70803USA 

出 版 物：《Science China(Life Sciences)》 (中国科学（生命科学英文版）)

年 卷 期：2024年第67卷第2期

页      面：403-413页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 0713[理学-生态学] 

基　　金：supported by the National Natural Science Foundation of China(32125026,31988102) the National Key Research Development Program of China(2022YFF0802300) the Strategic Priority Research Program of Chinese Academy of Sciences(XDB31000000) 

主　　题：biodiversity ecological strategy functional diversity functional trait long-term change species diversity 

摘      要：Global climate change has led to the decline of species and functional diversity in ecosystems,changing community composition and ecosystem ***,we still know little about how species with different resource-use strategies(different types of resource usage and plant growth of plants as indicated by the spectrum of plant economic traits,including acquisitive resource-use strategy and conservative resource-use strategy)would change in response to climate change,and how the changes in the diversity of species with different resource-use strategies may influence community-level ***,using long-term(1982–2017)observatory data in a temperate grassland in Inner Mongolia,we investigated how climate change had affected the species richness(SR)and functional richness(FRic)for the whole community and for species with different resource-use ***,based on data for four traits representing leaf economics spectrum(leaf carbon concentration,leaf nitrogen concentration,leaf phosphorus concentration,and specific leaf area),we divided 81 plant species appearing in the grassland community into three plant functional types representing resource-acquisitive,medium,and resource-conservative *** then analyzed the changes in community-level productivity in response to the decline of SR and FRic at the community level and for different resource-use *** found that community-level SR and FRic decreased with drying climate,which was largely driven by the decline of diversity for resource-acquisitive ***,community-level productivity remained stable because resource-conservative species dominating this grassland were barely affected by climate *** study revealed distinctive responses of species with different resource-use strategies to climate change and provided a new approach based on species functional traits for predicting the magnitude and direction of climate change effects on ecosystem functions.