Shifting plant species composition in response to climate change stabilizes grassland primary production

doi:10.1073/pnas.1700299114

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Shifting plant species composition in response to climate change stabilizes grassland primary production
	Liu, Huiying ; Mi, Zhaorong ; Lin, Li ; Wang, Yonghui ; Zhang, Zhenhua ; Zhang, Fawei ; Wang, Hao ; Liu, Lingli 5; Zhu, Biao ; Cao, Guangmin
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2018
卷号	115 期号:16 页码:4051-4056
关键词	alpine ecosystem warming experiment long-term monitoring ecosystem functioning Tibetan Plateau
ISSN号	0027-8424
DOI	10.1073/pnas.1700299114
文献子类	Article
英文摘要	The structure and function of alpine grassland ecosystems, including their extensive soil carbon stocks, are largely shaped by temperature. The Tibetan Plateau in particular has experienced significant warming over the past 50 y, and this warming trend is projected to intensify in the future. Such climate change will likely alter plant species composition and net primary production (NPP). Here we combined 32 y of observations and monitoring with a manipulative experiment of temperature and precipitation to explore the effects of changing climate on plant community structure and ecosystem function. First, long-term climate warming from 1983 to 2014, which occurred without systematic changes in precipitation, led to higher grass abundance and lower sedge abundance, but did not affect aboveground NPP. Second, an experimental warming experiment conducted over 4 y had no effects on any aspect of NPP, whereas drought manipulation (reducing precipitation by 50%), shifted NPP allocation belowground without affecting total NPP. Third, both experimental warming and drought treatments, supported by a meta-analysis at nine sites across the plateau, increased grass abundance at the expense of biomass of sedges and forbs. This shift in functional group composition led to deeper root systems, which may have enabled plant communities to acquire more water and thus stabilize ecosystem primary production even with a changing climate. Overall, our study demonstrates that shifting plant species composition in response to climate change may have stabilized primary production in this high-elevation ecosystem, but it also caused a shift from aboveground to belowground productivity.
学科主题	Multidisciplinary Sciences
出版地	WASHINGTON
WOS关键词	SOIL ORGANIC-CARBON ; TIBETAN PLATEAU ; TERRESTRIAL ECOSYSTEMS ; ARCTIC TUNDRA ; ALPINE MEADOW ; LAND-USE ; METAANALYSIS ; COMMUNITY ; BIOMASS ; RESPIRATION
语种	英语
出版者	NATL ACAD SCIENCES
WOS记录号	WOS:000430191900046
资助机构	Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05050000] ; National Basic Research Program of ChinaNational Basic Research Program of China [2014CB954000] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31630009, 31570394, 31321061] ; Semper Ardens grant from the Carlsberg Foundation
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/20533]
专题	植被与环境变化国家重点实验室
作者单位	1.Reich, Peter B.] Univ Minnesota, Dept Forest Resources, St Paul, MN 55108 USA 2.Reich, Peter B.] Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia 3.Sanders, Nathan J.; Classen, Aimee T.] Univ Vermont, Rubenstein Sch Environm & Nat Resources, Burlington, VT 05405 USA 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China 6.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China 7.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 8.Sanders, Nathan J.; Classen, Aimee T.] Univ Copenhagen, Cte Macroecol Evolut & Climate, Nat Hist Museum Denmark, DK-2100 Copenhagen, Denmark
推荐引用方式 GB/T 7714	Liu, Huiying,Mi, Zhaorong,Lin, Li,et al. Shifting plant species composition in response to climate change stabilizes grassland primary production[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(16):4051-4056.
APA	Liu, Huiying.,Mi, Zhaorong.,Lin, Li.,Wang, Yonghui.,Zhang, Zhenhua.,...&He, Jin-Sheng.(2018).Shifting plant species composition in response to climate change stabilizes grassland primary production.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(16),4051-4056.
MLA	Liu, Huiying,et al."Shifting plant species composition in response to climate change stabilizes grassland primary production".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.16(2018):4051-4056.