Shifting plant species composition in response to climate change stabilizes grassland primary production
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 c...
Published in: | Proceedings of the National Academy of Sciences |
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Language: | English |
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Online Access: | http://ir.ibcas.ac.cn/handle/2S10CLM1/20533 https://doi.org/10.1073/pnas.1700299114 |
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ftchiacadscibcas:oai:ir.ibcas.ac.cn:2S10CLM1/20533 2023-05-15T15:13:47+02:00 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 Zhu, Biao Cao, Guangmin Zhao, Xinquan Sanders, Nathan J. Classen, Aimee T. Reich, Peter B. He, Jin-Sheng 2018 http://ir.ibcas.ac.cn/handle/2S10CLM1/20533 https://doi.org/10.1073/pnas.1700299114 英语 eng NATL ACAD SCIENCES PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA http://ir.ibcas.ac.cn/handle/2S10CLM1/20533 doi:10.1073/pnas.1700299114 cn.org.cspace.api.content.CopyrightPolicy@1a459cfb alpine ecosystem warming experiment long-term monitoring ecosystem functioning Tibetan Plateau Multidisciplinary Sciences SOIL ORGANIC-CARBON TERRESTRIAL ECOSYSTEMS ARCTIC TUNDRA ALPINE MEADOW LAND-USE METAANALYSIS COMMUNITY BIOMASS RESPIRATION Article 期刊论文 2018 ftchiacadscibcas https://doi.org/10.1073/pnas.1700299114 2022-06-12T18:14:04Z 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. Article in Journal/Newspaper Arctic Climate change Tundra Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) Arctic Proceedings of the National Academy of Sciences 115 16 4051 4056 |
institution |
Open Polar |
collection |
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) |
op_collection_id |
ftchiacadscibcas |
language |
English |
topic |
alpine ecosystem warming experiment long-term monitoring ecosystem functioning Tibetan Plateau Multidisciplinary Sciences SOIL ORGANIC-CARBON TERRESTRIAL ECOSYSTEMS ARCTIC TUNDRA ALPINE MEADOW LAND-USE METAANALYSIS COMMUNITY BIOMASS RESPIRATION |
spellingShingle |
alpine ecosystem warming experiment long-term monitoring ecosystem functioning Tibetan Plateau Multidisciplinary Sciences SOIL ORGANIC-CARBON TERRESTRIAL ECOSYSTEMS ARCTIC TUNDRA ALPINE MEADOW LAND-USE METAANALYSIS COMMUNITY BIOMASS RESPIRATION Liu, Huiying Mi, Zhaorong Lin, Li Wang, Yonghui Zhang, Zhenhua Zhang, Fawei Wang, Hao Liu, Lingli Zhu, Biao Cao, Guangmin Zhao, Xinquan Sanders, Nathan J. Classen, Aimee T. Reich, Peter B. He, Jin-Sheng Shifting plant species composition in response to climate change stabilizes grassland primary production |
topic_facet |
alpine ecosystem warming experiment long-term monitoring ecosystem functioning Tibetan Plateau Multidisciplinary Sciences SOIL ORGANIC-CARBON TERRESTRIAL ECOSYSTEMS ARCTIC TUNDRA ALPINE MEADOW LAND-USE METAANALYSIS COMMUNITY BIOMASS RESPIRATION |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Liu, Huiying Mi, Zhaorong Lin, Li Wang, Yonghui Zhang, Zhenhua Zhang, Fawei Wang, Hao Liu, Lingli Zhu, Biao Cao, Guangmin Zhao, Xinquan Sanders, Nathan J. Classen, Aimee T. Reich, Peter B. He, Jin-Sheng |
author_facet |
Liu, Huiying Mi, Zhaorong Lin, Li Wang, Yonghui Zhang, Zhenhua Zhang, Fawei Wang, Hao Liu, Lingli Zhu, Biao Cao, Guangmin Zhao, Xinquan Sanders, Nathan J. Classen, Aimee T. Reich, Peter B. He, Jin-Sheng |
author_sort |
Liu, Huiying |
title |
Shifting plant species composition in response to climate change stabilizes grassland primary production |
title_short |
Shifting plant species composition in response to climate change stabilizes grassland primary production |
title_full |
Shifting plant species composition in response to climate change stabilizes grassland primary production |
title_fullStr |
Shifting plant species composition in response to climate change stabilizes grassland primary production |
title_full_unstemmed |
Shifting plant species composition in response to climate change stabilizes grassland primary production |
title_sort |
shifting plant species composition in response to climate change stabilizes grassland primary production |
publisher |
NATL ACAD SCIENCES |
publishDate |
2018 |
url |
http://ir.ibcas.ac.cn/handle/2S10CLM1/20533 https://doi.org/10.1073/pnas.1700299114 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Tundra |
genre_facet |
Arctic Climate change Tundra |
op_relation |
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA http://ir.ibcas.ac.cn/handle/2S10CLM1/20533 doi:10.1073/pnas.1700299114 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@1a459cfb |
op_doi |
https://doi.org/10.1073/pnas.1700299114 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
115 |
container_issue |
16 |
container_start_page |
4051 |
op_container_end_page |
4056 |
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1766344300898025472 |