Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Shifting plant species composition in response to climate change stabilizes grassland primary production | |
Liu, Huiying1,2; Mi, Zhaorong3; Lin, Li1,2; Wang, Yonghui1,2; Zhang, Zhenhua3; Zhang, Fawei3; Wang, Hao1,2; Liu, Lingli4; Zhu, Biao1,2; Cao, Guangmin3; Zhao, Xinquan3; Sanders, Nathan J.5,6; Classen, Aimee T.5,6; Reich, Peter B.7,8; He, Jin-Sheng1,2,3 | |
2018-04-17 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
卷号 | 115期号:16页码:4051-4056 |
文章类型 | Article |
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. |
关键词 | Alpine Ecosystem Warming Experiment Long-term Monitoring Ecosystem Functioning Tibetan Plateau |
WOS标题词 | Science & Technology |
DOI | 10.1073/pnas.1700299114 |
关键词[WOS] | QINGHAI-TIBETAN PLATEAU ; SOIL ORGANIC-CARBON ; ALPINE MEADOW ; TERRESTRIAL ECOSYSTEMS ; VEGETATION GROWTH ; ARCTIC TUNDRA ; LAND-USE ; BIOMASS ; CHINA ; METAANALYSIS |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | Strategic Priority Research Program of the Chinese Academy of Sciences(XDA05050000) ; National Basic Research Program of China(2014CB954000) ; National Natural Science Foundation of China(31630009 ; Semper Ardens grant from the Carlsberg Foundation ; 31570394 ; 31321061) |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000430191900046 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/13352 |
专题 | 中国科学院西北高原生物研究所 |
作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China 2.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.Univ Vermont, Rubenstein Sch Environm & Nat Resources, Burlington, VT 05405 USA 6.Univ Copenhagen, Cte Macroecol Evolut & Climate, Nat Hist Museum Denmark, DK-2100 Copenhagen, Denmark 7.Univ Minnesota, Dept Forest Resources, St Paul, MN 55108 USA 8.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia |
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. |
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