Synergistic effects of nitrogen and CO(2)enrichment on alpine grassland biomass and community structure

doi:10.1111/nph.16767

	Synergistic effects of nitrogen and CO(2)enrichment on alpine grassland biomass and community structure
	Zhu, Juntao 1,2; Zhang, Yangjian 1,3,4; Yang, Xian 2; Chen, Ning 1; Jiang, Lin 2
刊名	NEW PHYTOLOGIST
	2020-07-16
页码	12
关键词	Alpine grasslands community composition CO(2)enrichment nitrogen (N) addition plant traits species diversity
ISSN号	0028-646X
DOI	10.1111/nph.16767
通讯作者	Zhang, Yangjian() ; Jiang, Lin(lin.jiang@biology.gatech.edu)
英文摘要	Global environmental change is altering the Earth's ecosystems. However, much research has focused on ecosystem-level responses, and we know substantially less about community-level responses to global change stressors. Here we conducted a 6-yr field experiment in a high-altitude (4600 m asl) alpine grassland on the Tibetan Plateau to explore the effects of nitrogen (N) addition and rising atmospheric CO(2)concentration on plant communities. Our results showed that N and CO(2)enrichment had synergistic effects on alpine grassland communities. Adding nitrogen or CO(2)alone did not alter total community biomass, species diversity or community composition, whereas adding both resources together increased community biomass, reduced species diversity and altered community composition. The observed decline in species diversity under simultaneous N and CO(2)enrichment was associated with greater community biomass and lower soil water content, and driven by the loss of species characterised simultaneously by tall stature and small specific leaf area. Our findings point to the co-limitation of alpine plant community biomass and structure by nitrogen and CO2, emphasising the need for future studies to consider multiple aspects of global environmental change together to gain a more complete understanding of their ecological consequences.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA20050102] ; National Key Research & Development Program of China[2017YFA0604802] ; National Key Research & Development Program of China[2016YFC0501802] ; National Natural Science Foundation of China[41571195] ; National Natural Science Foundation of China[41725003] ; Program of Introducing Talents of Discipline to Universities[B16011] ; youth innovation team project of Key Laboratory of Ecosystem Network Observation and Modeling[LENOM2016Q0002] ; Institute of Geographic Sciences and Natural Resources Research[2016RC102] ; National Science Foundation of USA[DEB-1342754] ; National Science Foundation of USA[DEB-1856318] ; National Science Foundation of USA[CBET-1833988]
WOS关键词	AIR CO2 ENRICHMENT ; ELEVATED CO2 ; PLANT DIVERSITY ; CARBON-DIOXIDE ; SPECIES RICHNESS ; CHEMICAL-COMPOSITION ; ATMOSPHERIC CO2 ; CRITICAL LOADS ; SOIL CARBON ; LAND-USE
WOS研究方向	Plant Sciences
语种	英语
出版者	WILEY
WOS记录号	WOS:000548590300001
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research & Development Program of China ; National Natural Science Foundation of China ; Program of Introducing Talents of Discipline to Universities ; youth innovation team project of Key Laboratory of Ecosystem Network Observation and Modeling ; Institute of Geographic Sciences and Natural Resources Research ; National Science Foundation of USA
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158404]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yangjian; Jiang, Lin
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Rizearch Stn, Beijing 100101, Peoples R China 2.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Juntao,Zhang, Yangjian,Yang, Xian,et al. Synergistic effects of nitrogen and CO(2)enrichment on alpine grassland biomass and community structure[J]. NEW PHYTOLOGIST,2020:12.
APA	Zhu, Juntao,Zhang, Yangjian,Yang, Xian,Chen, Ning,&Jiang, Lin.(2020).Synergistic effects of nitrogen and CO(2)enrichment on alpine grassland biomass and community structure.NEW PHYTOLOGIST,12.
MLA	Zhu, Juntao,et al."Synergistic effects of nitrogen and CO(2)enrichment on alpine grassland biomass and community structure".NEW PHYTOLOGIST (2020):12.