Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality

Abstract Water resources of water transfer projects are not only used to solve the water scarcity problem in the water-receiving area but also to change the regional carbon absorption capacity. Using the water-receiving area of the Jiangsu-Shandong section of the East Route of the South-to-North Wat...

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Main Authors: Zhuoyue Peng, Mengting Li, Yaming Liu, Junxian Yin, Hongyuan Fang, Jiawei Wen
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-96033-3
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author Zhuoyue Peng
Mengting Li
Yaming Liu
Junxian Yin
Hongyuan Fang
Jiawei Wen
author_facet Zhuoyue Peng
Mengting Li
Yaming Liu
Junxian Yin
Hongyuan Fang
Jiawei Wen
author_sort Zhuoyue Peng
collection DOAJ
description Abstract Water resources of water transfer projects are not only used to solve the water scarcity problem in the water-receiving area but also to change the regional carbon absorption capacity. Using the water-receiving area of the Jiangsu-Shandong section of the East Route of the South-to-North Water Diversion Project (ER-SNWDP) of China as a case study, this study explored the dynamic variation in carbon stocks in response to water diversion project in the context of carbon neutrality. The results showed that (1) After the ER-SNWDP came into operation, there was a trend of growth in water area. Based on multi-scenario simulation, under the ER-SNWDP scenario, built-up land expansion would be curbed, forest and grassland reductions would be alleviated, and water areas would increase significantly compared to the natural variation scenario. (2) Due to the implementation of the project, the research area had better carbon sequestration capacity. Under the natural variation scenario from 2015 to 2025, the carbon stock would decrease by 1228.35 × 104 t. However, under the ER-SNWDP scenario, there would be an increase of 262.84 × 104 t. In addition, the water resource allocation of ER-SNWDP may affect the spatial distribution of carbon stocks. In the northeast region, particularly in the Binzhou and Dongying areas with large water transfer volumes, the increase in carbon stocks was significant, and the center of gravity of increase also tended to tilt these areas. (3) Land use had the highest explanatory power and driving force for spatial variation in carbon stocks. According to the results of the interaction factor analysis, the strongest interaction factor after 2005 was “land use ∩ nighttime lights”, indicating that the interaction between socio-economic factors and land use factors gradually amplified the impact on the spatial variation of carbon stocks. This study provides a scientific basis for future land use planning, promotes the rational and optimal allocation of water and carbon resources, and provides a prospective reference for water resources to cope with climate change and achieve carbon neutrality.
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spelling doaj-art-0bcf1ee3d2104cb3aacc6ea666f5690d2025-08-20T03:18:30ZengNature PortfolioScientific Reports2045-23222025-04-0115111710.1038/s41598-025-96033-3Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutralityZhuoyue Peng0Mengting Li1Yaming Liu2Junxian Yin3Hongyuan Fang4Jiawei Wen5State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower ResearchEngineering Research Center of High-Efficiency and Energy-Saving Large Axial Flow Pumping Station, Yangzhou UniversityEngineering Research Center of High-Efficiency and Energy-Saving Large Axial Flow Pumping Station, Yangzhou UniversityState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower ResearchEngineering Research Center of High-Efficiency and Energy-Saving Large Axial Flow Pumping Station, Yangzhou UniversityJiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou UniversityAbstract Water resources of water transfer projects are not only used to solve the water scarcity problem in the water-receiving area but also to change the regional carbon absorption capacity. Using the water-receiving area of the Jiangsu-Shandong section of the East Route of the South-to-North Water Diversion Project (ER-SNWDP) of China as a case study, this study explored the dynamic variation in carbon stocks in response to water diversion project in the context of carbon neutrality. The results showed that (1) After the ER-SNWDP came into operation, there was a trend of growth in water area. Based on multi-scenario simulation, under the ER-SNWDP scenario, built-up land expansion would be curbed, forest and grassland reductions would be alleviated, and water areas would increase significantly compared to the natural variation scenario. (2) Due to the implementation of the project, the research area had better carbon sequestration capacity. Under the natural variation scenario from 2015 to 2025, the carbon stock would decrease by 1228.35 × 104 t. However, under the ER-SNWDP scenario, there would be an increase of 262.84 × 104 t. In addition, the water resource allocation of ER-SNWDP may affect the spatial distribution of carbon stocks. In the northeast region, particularly in the Binzhou and Dongying areas with large water transfer volumes, the increase in carbon stocks was significant, and the center of gravity of increase also tended to tilt these areas. (3) Land use had the highest explanatory power and driving force for spatial variation in carbon stocks. According to the results of the interaction factor analysis, the strongest interaction factor after 2005 was “land use ∩ nighttime lights”, indicating that the interaction between socio-economic factors and land use factors gradually amplified the impact on the spatial variation of carbon stocks. This study provides a scientific basis for future land use planning, promotes the rational and optimal allocation of water and carbon resources, and provides a prospective reference for water resources to cope with climate change and achieve carbon neutrality.https://doi.org/10.1038/s41598-025-96033-3
spellingShingle Zhuoyue Peng
Mengting Li
Yaming Liu
Junxian Yin
Hongyuan Fang
Jiawei Wen
Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
Scientific Reports
title Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
title_full Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
title_fullStr Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
title_full_unstemmed Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
title_short Spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
title_sort spatiotemporal evolution and influencing factors of carbon stock in the water receiving areas from the perspective of carbon neutrality
url https://doi.org/10.1038/s41598-025-96033-3
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