Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C
Abstract Aims The impacts of future global warming of 1.5°C and 2°C on the productivity and carbon (C) storage of grasslands in China are not clear yet, although grasslands in China support ~45 million agricultural populations and more than 238 million livestock populations, and are sensitive to glo...
Published in: | Journal of Plant Ecology |
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Oxford University Press (OUP)
2019
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Online Access: | http://dx.doi.org/10.1093/jpe/rtz024 http://academic.oup.com/jpe/advance-article-pdf/doi/10.1093/jpe/rtz024/28564862/rtz024.pdf http://academic.oup.com/jpe/article-pdf/12/5/804/29963199/rtz024.pdf |
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croxfordunivpr:10.1093/jpe/rtz024 2024-09-15T18:35:38+00:00 Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C Wang, Zhaoqi Chang, Jinfeng Peng, Shushi Piao, Shilong Ciais, Philippe Betts, Richard National Key Research and Development Program of China National Basic Research Program of China 2019 http://dx.doi.org/10.1093/jpe/rtz024 http://academic.oup.com/jpe/advance-article-pdf/doi/10.1093/jpe/rtz024/28564862/rtz024.pdf http://academic.oup.com/jpe/article-pdf/12/5/804/29963199/rtz024.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Journal of Plant Ecology volume 12, issue 5, page 804-814 ISSN 1752-993X journal-article 2019 croxfordunivpr https://doi.org/10.1093/jpe/rtz024 2024-08-12T04:26:09Z Abstract Aims The impacts of future global warming of 1.5°C and 2°C on the productivity and carbon (C) storage of grasslands in China are not clear yet, although grasslands in China support ~45 million agricultural populations and more than 238 million livestock populations, and are sensitive to global warming. Methods This study used a process-based terrestrial ecosystem model named ORCHIDEE to simulate C cycle of alpine meadows and temperate grasslands in China. This model was driven by high-resolution (0.5° × 0.5°) climate of global specific warming levels (SWL) of 1.5°C and 2°C (warmer than pre-industrial level), which is downscaled by EC-EARTH3-HR v3.1 with sea surface temperature and sea-ice concentration as boundary conditions from IPSL-CM5-LR (low spatial resolution, 2.5° × 1.5°) Earth system model (ESM). Important Findings Compared with baseline (1971–2005), the mean annual air temperature over Chinese grasslands increased by 2.5°C and 3.7°C under SWL1.5 and SWL2, respectively. The increase in temperature in the alpine meadow was higher than that in the temperate grassland under both SWL1.5 and SWL2. Precipitation was also shown an increasing trend under SWL2 over most of the Chinese grasslands. Strong increases in gross primary productivity (GPP) were simulated in the Chinese grasslands, and the mean annual GPP (GPPMA) increased by 19.32% and 43.62% under SWL1.5 and SWL2, respectively. The C storage increased by 0.64 Pg C and 1.37 Pg C under SWL1.5 and SWL2 for 50 years simulations. The GPPMA was 0.670.390.88 (0.82) (model meanminmax (this study)), 0.850.451.24 (0.97) and 0.940.611.30 (1.17) Pg C year−1 under baseline, SWL1.5 and SWL2 modeled by four CMIP5 ESMs (phase 5 of the Coupled Model Inter-comparison Project Earth System Models). In contrast, the mean annual net biome productivity was −18.55−40.374.47 (−3.61),18.65−2.0364.03 (10.29) and 24.158.3838.77 (24.93) Tg C year−1 under baseline, SWL1.5 and SWL2 modeled by the four CMIP5 ESMs. Our results indicated that the Chinese grasslands would have ... Article in Journal/Newspaper Sea ice Oxford University Press Journal of Plant Ecology 12 5 804 814 |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Aims The impacts of future global warming of 1.5°C and 2°C on the productivity and carbon (C) storage of grasslands in China are not clear yet, although grasslands in China support ~45 million agricultural populations and more than 238 million livestock populations, and are sensitive to global warming. Methods This study used a process-based terrestrial ecosystem model named ORCHIDEE to simulate C cycle of alpine meadows and temperate grasslands in China. This model was driven by high-resolution (0.5° × 0.5°) climate of global specific warming levels (SWL) of 1.5°C and 2°C (warmer than pre-industrial level), which is downscaled by EC-EARTH3-HR v3.1 with sea surface temperature and sea-ice concentration as boundary conditions from IPSL-CM5-LR (low spatial resolution, 2.5° × 1.5°) Earth system model (ESM). Important Findings Compared with baseline (1971–2005), the mean annual air temperature over Chinese grasslands increased by 2.5°C and 3.7°C under SWL1.5 and SWL2, respectively. The increase in temperature in the alpine meadow was higher than that in the temperate grassland under both SWL1.5 and SWL2. Precipitation was also shown an increasing trend under SWL2 over most of the Chinese grasslands. Strong increases in gross primary productivity (GPP) were simulated in the Chinese grasslands, and the mean annual GPP (GPPMA) increased by 19.32% and 43.62% under SWL1.5 and SWL2, respectively. The C storage increased by 0.64 Pg C and 1.37 Pg C under SWL1.5 and SWL2 for 50 years simulations. The GPPMA was 0.670.390.88 (0.82) (model meanminmax (this study)), 0.850.451.24 (0.97) and 0.940.611.30 (1.17) Pg C year−1 under baseline, SWL1.5 and SWL2 modeled by four CMIP5 ESMs (phase 5 of the Coupled Model Inter-comparison Project Earth System Models). In contrast, the mean annual net biome productivity was −18.55−40.374.47 (−3.61),18.65−2.0364.03 (10.29) and 24.158.3838.77 (24.93) Tg C year−1 under baseline, SWL1.5 and SWL2 modeled by the four CMIP5 ESMs. Our results indicated that the Chinese grasslands would have ... |
author2 |
National Key Research and Development Program of China National Basic Research Program of China |
format |
Article in Journal/Newspaper |
author |
Wang, Zhaoqi Chang, Jinfeng Peng, Shushi Piao, Shilong Ciais, Philippe Betts, Richard |
spellingShingle |
Wang, Zhaoqi Chang, Jinfeng Peng, Shushi Piao, Shilong Ciais, Philippe Betts, Richard Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C |
author_facet |
Wang, Zhaoqi Chang, Jinfeng Peng, Shushi Piao, Shilong Ciais, Philippe Betts, Richard |
author_sort |
Wang, Zhaoqi |
title |
Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C |
title_short |
Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C |
title_full |
Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C |
title_fullStr |
Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C |
title_full_unstemmed |
Changes in productivity and carbon storage of grasslands in China under future global warming scenarios of 1.5°C and 2°C |
title_sort |
changes in productivity and carbon storage of grasslands in china under future global warming scenarios of 1.5°c and 2°c |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1093/jpe/rtz024 http://academic.oup.com/jpe/advance-article-pdf/doi/10.1093/jpe/rtz024/28564862/rtz024.pdf http://academic.oup.com/jpe/article-pdf/12/5/804/29963199/rtz024.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Plant Ecology volume 12, issue 5, page 804-814 ISSN 1752-993X |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/jpe/rtz024 |
container_title |
Journal of Plant Ecology |
container_volume |
12 |
container_issue |
5 |
container_start_page |
804 |
op_container_end_page |
814 |
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1810478831523332096 |