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Response of Aboveground Net Primary Production, Species and Phylogenetic Diversity to Warming and Increased Precipitation in an Alpine Meadow

文献类型：期刊论文

作者Xiao, Jianyu2; Yu, Chengqun; Fu, Gang
刊名PLANTS-BASEL
出版日期2023-09-01
卷号12期号:17页码:3017
ISSN号2223-7747
关键词biodiversity & alpha -diversity & beta -diversity climate warming phylogenetic diversity species composition
DOI10.3390/plants12173017
产权排序1
文献子类Article
英文摘要The uncertain responses of aboveground net primary productivity (ANPP) and plant diversity to climate warming and increased precipitation will limit our ability to predict changes in vegetation productivity and plant diversity under future climate change and further constrain our ability to protect biodiversity and ecosystems. A long-term experiment was conducted to explore the responses of ANPP, plant species, phylogenetic a-diversity, and community composition to warming and increased precipitation in an alpine meadow of the Northern Tibet from 2014 to 2019. Coverage, height, and species name were obtained by conventional community investigation methods, and ANPP was obtained using observed height and coverage. Open-top chambers with two different heights were used to simulate low- and high-level climate warming. The low- and high-level increased precipitation treatments were achieved by using two kinds of surface area funnel devices. The high-level warming reduced sedge ANPP (ANPP(sedge)) by 62.81%, species richness (SR) by 21.05%, Shannon by 13.06%, and phylogenetic diversity (PD) by 14.48%, but increased forb ANPP (ANPP(forb)) by 56.65% and mean nearest taxon distance (MNTD) by 33.88%. Species richness, Shannon, and PD of the high-level warming were 19.64%, 9.67%, and 14.66% lower than those of the low-level warming, respectively. The high-level warming-induced dissimilarity magnitudes of species and phylogenetic composition were greater than those caused by low-level warming. The low- rather than high-level increased precipitation altered species and phylogenetic composition. There were significant inter-annual variations of ANPP, plant species, phylogenetic a-diversity and community composition. Therefore, climate warming and increased precipitation had non-linear effects on ANPP and plant diversity, which were due to non-linear changes in temperature, water availability, and/or soil nutrition caused by warming and increased precipitation. The inter-annual variations of ANPP and plant diversity were stronger than the effects of warming and especially increased precipitation on ANPP and plant diversity. In terms of plant diversity conservation and related policy formulation, we should pay more attention to regions with greater warming, at least for the northern Tibet grasslands. Besides paying attention to the responses of ANPP and plant diversity to climate change, the large inter-annual changes of ANPP and plant diversity should be given great attention because the large inter-annual variation indicates the low temporal stability of ANPP and plant diversity and thus produces great uncertainty for the development of animal husbandry.
学科主题Plant Sciences
WOS关键词TIBETAN PLATEAU ; COMMUNITY STRUCTURE ; NITROGEN ADDITION ; SOIL RESPIRATION ; PLANT-PRODUCTION ; CLIMATE-CHANGE ; METAANALYSIS ; GRASSLAND ; TEMPERATURE ; GROWTH
WOS研究方向Plant Sciences
出版者MDPI
WOS记录号WOS:001065217200001
源URL[http://ir.igsnrr.ac.cn/handle/311030/197874]  
专题拉萨站高原生态系统研究中心_外文论文
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Xiao, Jianyu,Yu, Chengqun,Fu, Gang. Response of Aboveground Net Primary Production, Species and Phylogenetic Diversity to Warming and Increased Precipitation in an Alpine Meadow[J]. PLANTS-BASEL,2023,12(17):3017.
APA Xiao, Jianyu,Yu, Chengqun,&Fu, Gang.(2023).Response of Aboveground Net Primary Production, Species and Phylogenetic Diversity to Warming and Increased Precipitation in an Alpine Meadow.PLANTS-BASEL,12(17),3017.
MLA Xiao, Jianyu,et al."Response of Aboveground Net Primary Production, Species and Phylogenetic Diversity to Warming and Increased Precipitation in an Alpine Meadow".PLANTS-BASEL 12.17(2023):3017.

入库方式： OAI收割

来源：地理科学与资源研究所

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