Long term experimental drought alters community plant trait variation, not trait means, across three semiarid grasslands

doi:10.1007/s11104-019-04176-w

	Long term experimental drought alters community plant trait variation, not trait means, across three semiarid grasslands
	Luo, Wentao ; Zuo, Xiaoan 1; Griffin-Nolan, Robert J.; Xu, Chong 4; Ma, Wang ; Song, Lin ; Helsen, Kenny 5; Lin, Yingchao 6; Cai, Jiangping 7; Yu, Qiang 4; Wang, Zhengwen ; Smith, Melinda D.; Han, Xingguo7 ; Knapp, Alan K.
	2019
发表期刊	PLANT AND SOIL
ISSN	0032-079X
卷号	442 期号:1-2 页码:343-353
摘要	Background and aims Grasslands are expected to experience droughts of unprecedented magnitude and duration in this century. Plant traits can be useful for understanding community and ecosystem responses to climate extremes. Few studies, however, have investigated the response of community-scale traits to extreme drought on broad spatial/temporal scales, with even less research on the relative contribution of species turnover vs. intraspecific trait variation to such responses. Methods We experimentally removed similar to 66% of growing season rainfall for three years across three semi-arid grasslands of northern China and tracked changes in community functional composition, defined as the community mean and variation of several leaf economic traits. Results Community trait variations were more sensitive to drought than community trait means, which suggests this component of functional composition may be a better indicator of initial community drought responses than trait values themselves. The greatest change in trait variation was observed at the high aridity site and was driven largely by intraspecific trait variability. Apart from specific leaf area, trait variability increased with increasing aridity across sites, largely due to species turnover. Variations in soil moisture and fertility likely mediated the responses of community trait variations to water stress. Conclusions These results highlight the importance of measuring community trait variability in response to drought and support the well-documented pattern of increased community drought sensitivity of more arid ecosystems.
关键词	Climate change Plant functional traits Grasslands Intraspecific trait variability Species turnover
学科领域	Agronomy ; Plant Sciences ; Soil Science
DOI	10.1007/s11104-019-04176-w
收录类别	SCI
语种	英语
WOS关键词	CLIMATE-CHANGE ; INTRASPECIFIC VARIABILITY ; ECOSYSTEM DYNAMICS ; GRADIENT METHODS ; CONVERGENCE ; FRAMEWORK ; PRECIPITATION ; DIVERGENCE ; MECHANISMS ; RESPONSES
WOS研究方向	Agriculture ; Plant Sciences
WOS记录号	WOS:000485324700024
出版者	SPRINGER
文献子类	Article
出版地	DORDRECHT
EISSN	1573-5036
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41603080, 41600302, 41622103, 31822006, 41320104002] ; National Key Research and Development Program of China [2016YFC0500601, 2016YFC0500602] ; Strategic Priority Research Program of Chinese Academic of Sciences [XDA23080401]
作者邮箱	zuoxa@lzb.ac.cn ; yuqiang@caas.cn ; wangzw@iae.ac.cn
作品OA属性	Green Accepted
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19736
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110164, Liaoning, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730030, Gansu, Peoples R China 3.Griffin-Nolan, Robert J.; Smith, Melinda D.; Knapp, Alan K.] Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA 4.Griffin-Nolan, Robert J.; Smith, Melinda D.; Knapp, Alan K.] Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA 5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 10008, Peoples R China 6.Univ Leuven, Dept Biol, Plant Conservat & Populat Biol, Arenbergpk 31, B-3001 Heverlee, Belgium 7.Guizhou Acad Tobacco Sci, Guiyang 550081, Guizhou, Peoples R China 8.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Luo, Wentao,Zuo, Xiaoan,Griffin-Nolan, Robert J.,et al. Long term experimental drought alters community plant trait variation, not trait means, across three semiarid grasslands[J]. PLANT AND SOIL,2019,442(1-2):343-353.
APA	Luo, Wentao.,Zuo, Xiaoan.,Griffin-Nolan, Robert J..,Xu, Chong.,Ma, Wang.,...&Knapp, Alan K..(2019).Long term experimental drought alters community plant trait variation, not trait means, across three semiarid grasslands.PLANT AND SOIL,442(1-2),343-353.
MLA	Luo, Wentao,et al."Long term experimental drought alters community plant trait variation, not trait means, across three semiarid grasslands".PLANT AND SOIL 442.1-2(2019):343-353.

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