Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin
The water supply of the Yangtze River Basin (YZRB) is threatened by environmental degradation and increasing supply-demand risk, complicating sustainable development in the region. Water resources and ecosystem services are interconnected; however, the impact of water risks on these systems remains...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | Environmental and Sustainability Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2665972725001461 |
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| author | Yuanyuan Duan Hangnan Yu Meizhu Hou Jiangtao Yu Meng Yuan |
| author_facet | Yuanyuan Duan Hangnan Yu Meizhu Hou Jiangtao Yu Meng Yuan |
| author_sort | Yuanyuan Duan |
| collection | DOAJ |
| description | The water supply of the Yangtze River Basin (YZRB) is threatened by environmental degradation and increasing supply-demand risk, complicating sustainable development in the region. Water resources and ecosystem services are interconnected; however, the impact of water risks on these systems remains poorly understood. This study employed four indicators to assess water supply-demand risk in the YZRB: supply trend, demand trend, average supply-demand ratio, and supply-demand ratio trend. We also examined the distribution of ecosystem services across different risk grades. The findings indicated the following: (1) The overall water supply-demand situation in the YZRB improved from 2000 to 2020. The high-risk zone (characterized by grades ranging from disappearing to insufficient recharge, grades 1–5) accounts for about 8.77 % of the watershed area, and is mainly located in the construction land and some cultivated land in the middle and lower reaches of the watershed, as well as in the upper reaches of the watershed in Zhiduo County, Qinghai Province. The low risk grade (vulnerable and safe, grades 6 and 7) accounts for about 91.23 % of the watershed area and is mainly located in the forests, grasslands and part of the arable land within the watershed. As the water supply-demand risk decreases, vegetation cover increases and human activities decrease. (2) As the water supply-demand risk decreases, soil conservation, carbon storage and flood control gradually increase. However, grain production and habitat quality exhibited opposing trends and showed a weak correlation with water supply-demand risk. |
| format | Article |
| id | doaj-art-3168a113ca394fd8866cdc413f5e75dd |
| institution | DOAJ |
| issn | 2665-9727 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environmental and Sustainability Indicators |
| spelling | doaj-art-3168a113ca394fd8866cdc413f5e75dd2025-08-20T03:13:29ZengElsevierEnvironmental and Sustainability Indicators2665-97272025-06-012610072510.1016/j.indic.2025.100725Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River BasinYuanyuan Duan0Hangnan Yu1Meizhu Hou2Jiangtao Yu3Meng Yuan4College of Geography and Ocean Sciences, Yanbian University, Yanji, 133002, ChinaCollege of Geography and Ocean Sciences, Yanbian University, Yanji, 133002, China; Corresponding author.College of Geography and Ocean Sciences, Yanbian University, Yanji, 133002, ChinaCollege of Geographical Science, Harbin Normal University, Harbin, 150025, ChinaCollege of Geography and Ocean Sciences, Yanbian University, Yanji, 133002, ChinaThe water supply of the Yangtze River Basin (YZRB) is threatened by environmental degradation and increasing supply-demand risk, complicating sustainable development in the region. Water resources and ecosystem services are interconnected; however, the impact of water risks on these systems remains poorly understood. This study employed four indicators to assess water supply-demand risk in the YZRB: supply trend, demand trend, average supply-demand ratio, and supply-demand ratio trend. We also examined the distribution of ecosystem services across different risk grades. The findings indicated the following: (1) The overall water supply-demand situation in the YZRB improved from 2000 to 2020. The high-risk zone (characterized by grades ranging from disappearing to insufficient recharge, grades 1–5) accounts for about 8.77 % of the watershed area, and is mainly located in the construction land and some cultivated land in the middle and lower reaches of the watershed, as well as in the upper reaches of the watershed in Zhiduo County, Qinghai Province. The low risk grade (vulnerable and safe, grades 6 and 7) accounts for about 91.23 % of the watershed area and is mainly located in the forests, grasslands and part of the arable land within the watershed. As the water supply-demand risk decreases, vegetation cover increases and human activities decrease. (2) As the water supply-demand risk decreases, soil conservation, carbon storage and flood control gradually increase. However, grain production and habitat quality exhibited opposing trends and showed a weak correlation with water supply-demand risk.http://www.sciencedirect.com/science/article/pii/S2665972725001461Yangtze river basinWater resourcesWater supply-demand riskEcosystem services |
| spellingShingle | Yuanyuan Duan Hangnan Yu Meizhu Hou Jiangtao Yu Meng Yuan Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin Environmental and Sustainability Indicators Yangtze river basin Water resources Water supply-demand risk Ecosystem services |
| title | Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin |
| title_full | Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin |
| title_fullStr | Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin |
| title_full_unstemmed | Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin |
| title_short | Variation of ecosystem services in different water supply-demand risk : Signs from the Yangtze River Basin |
| title_sort | variation of ecosystem services in different water supply demand risk signs from the yangtze river basin |
| topic | Yangtze river basin Water resources Water supply-demand risk Ecosystem services |
| url | http://www.sciencedirect.com/science/article/pii/S2665972725001461 |
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