Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways

While the Chinese government has put a strong emphasis on combating climate change and pledged to strive for “carbon neutrality” in the 2060s, it is fundamental to assess the likely evolution of carbon storage in China’s terrestrial ecosystems. Here, we conducted a simulation study grounded by recen...

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প্রধান লেখক: Qi Zhang, Guanshi Zhang, Xiu Zhang, Dongsheng Liu, Ruying Fang, Na Dong, Hongjuan Wu, Sen Li
বিন্যাস: প্রবন্ধ
ভাষা:English
প্রকাশিত: American Association for the Advancement of Science (AAAS) 2023-01-01
মালা:Ecosystem Health and Sustainability
অনলাইন ব্যবহার করুন:https://spj.science.org/doi/10.34133/ehs.0085
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author Qi Zhang
Guanshi Zhang
Xiu Zhang
Dongsheng Liu
Ruying Fang
Na Dong
Hongjuan Wu
Sen Li
author_facet Qi Zhang
Guanshi Zhang
Xiu Zhang
Dongsheng Liu
Ruying Fang
Na Dong
Hongjuan Wu
Sen Li
author_sort Qi Zhang
collection DOAJ
description While the Chinese government has put a strong emphasis on combating climate change and pledged to strive for “carbon neutrality” in the 2060s, it is fundamental to assess the likely evolution of carbon storage in China’s terrestrial ecosystems. Here, we conducted a simulation study grounded by recent empirical evidence and advances in modeling techniques to project the spatiotemporal dynamics of carbon storage of the Yangtze River Basin (YRB)’s ecosystem from 2015 to 2050. Two sets of scenarios were developed to analyze the plausible effects of land-use change, climatic change, and carbon policy on carbon dynamics. The results show that the estimated total carbon storage of the YRB’s ecosystem was 21.75 Pg C in 2015, accounting for about a quarter of the total in China. Model simulations projected an overall increase in carbon storage of the YRB’s ecosystem. Under the combined scenarios, land-use change and climate change contributed to total carbon sequestration by 1.45 to 2.02 PgC and 1.64 to 2.00 PgC, respectively. Under the carbon tax scenario, due to an increase in the extent of forest driven by different carbon regimes, the YRB was projected to absorb 1.26 to 2.32 PgC by 2050. Several regions had been projected under threats of severe carbon losses, including a few places with high present-day carbon density in the middle reaches of the YRB. Our results could provide a more complete picture of carbon sequestration potential of the YRB’s ecosystems, which could benefit the formulation of nature-based solutions.
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spelling doaj.art-3d8cc3d9d57d49e7bd9cd5ee5d2c54c92023-06-22T15:31:26ZengAmerican Association for the Advancement of Science (AAAS)Ecosystem Health and Sustainability2332-88782023-01-01910.34133/ehs.0085Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use PathwaysQi Zhang0Guanshi Zhang1Xiu Zhang2Dongsheng Liu3Ruying Fang4Na Dong5Hongjuan Wu6Sen Li7School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.School of Geospatial Engineering and Science, Sun Yat-sen University, Zhuhai 519082, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.While the Chinese government has put a strong emphasis on combating climate change and pledged to strive for “carbon neutrality” in the 2060s, it is fundamental to assess the likely evolution of carbon storage in China’s terrestrial ecosystems. Here, we conducted a simulation study grounded by recent empirical evidence and advances in modeling techniques to project the spatiotemporal dynamics of carbon storage of the Yangtze River Basin (YRB)’s ecosystem from 2015 to 2050. Two sets of scenarios were developed to analyze the plausible effects of land-use change, climatic change, and carbon policy on carbon dynamics. The results show that the estimated total carbon storage of the YRB’s ecosystem was 21.75 Pg C in 2015, accounting for about a quarter of the total in China. Model simulations projected an overall increase in carbon storage of the YRB’s ecosystem. Under the combined scenarios, land-use change and climate change contributed to total carbon sequestration by 1.45 to 2.02 PgC and 1.64 to 2.00 PgC, respectively. Under the carbon tax scenario, due to an increase in the extent of forest driven by different carbon regimes, the YRB was projected to absorb 1.26 to 2.32 PgC by 2050. Several regions had been projected under threats of severe carbon losses, including a few places with high present-day carbon density in the middle reaches of the YRB. Our results could provide a more complete picture of carbon sequestration potential of the YRB’s ecosystems, which could benefit the formulation of nature-based solutions.https://spj.science.org/doi/10.34133/ehs.0085
spellingShingle Qi Zhang
Guanshi Zhang
Xiu Zhang
Dongsheng Liu
Ruying Fang
Na Dong
Hongjuan Wu
Sen Li
Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways
Ecosystem Health and Sustainability
title Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways
title_full Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways
title_fullStr Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways
title_full_unstemmed Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways
title_short Future of Carbon Storage in the Yangtze River Basin, China under Alternative Climate and Land-Use Pathways
title_sort future of carbon storage in the yangtze river basin china under alternative climate and land use pathways
url https://spj.science.org/doi/10.34133/ehs.0085
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