Assessment of water ecosystem service value in the Jianghuai watershed area: a case study of Chuzhou.

Ronghao Yang, Lizao Ye, Liming Xu, Donghua Chen, Xi Chen, Zice Ma, Xiulong Jin, Weixiang Kong, Wang Zhou

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Ronghao YangSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China.

Lizao YeSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China. lizaoye@chzu.edu.cn.

Liming XuSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China.

Donghua ChenSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China.

Xi ChenAnhui Engineering Laboratory of Geo-information Smart Sensing and Services, Chuzhou, 239000, Anhui Province, China.

Zice MaSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China.

Xiulong JinSchool of Literature and Media, Chuzhou University, Chuzhou, 239000, Anhui, China.

Weixiang KongSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China.

Wang ZhouSchool of Computer and Information Engineering, Chuzhou University, Chuzhou, 239000, China.

Funding

Chuzhou University Student Innovation and Entrepreneurship Training Program Project Funding 2025CXXL029General Program of the National Natural Science Foundation of China 41371162Key Project of the Education Department of Anhui Province 2022AH051104Key Project of the Education Department of Anhui Province 2022AH051108Natural Science Project of Anhui Province 2208085QD107Open Fund of Anhui Provincial Key Laboratory of Geographical Environment at Chuzhou University 2023PGE11Scientific Research Project of Chuzhou University 2022qd041The Third Batch of "Integration of Specialties and Innovation" Demonstration Course Construction Project of Chuzhou University 2024zckc002

6 · The paper itself

Abstract

As a critical area for the ecological security barrier in the middle and lower reaches of the Yangtze River, the Jianghuai Watershed Area holds significant importance in coordinating ecological conservation and economic development through the assessment of its water ecosystem service value (ESV). This study focuses on Chuzhou, a typical city within the Jianghuai Watershed Area, to explore the spatiotemporal evolution of water ESV and analyze the spatiotemporal change of the Consistency between water Ecosystem services and Economy (CEE) from 2000 to 2022 based on remote sensing. Firstly, the water was extracted through normalized snow water index (NSWI) and Otsu threshold method (OTSU). Subsequently, the water ESV dynamic evaluation model was constructed. Using this model, the water ESV in Chuzhou was quantified, and its spatiotemporal distribution characteristics were analyzed. Finally, by calculating the coefficient of variation (CV) between ESV and GDP, the deviation between water ESV and GDP in Chuzhou was obtained. At the same time, the coordination between water ESV and economic development of Chuzhou was obtained by calculating CEE, so as to evaluate the Spatiotemporal coordination and regional differences between them. This study has found that: (1) The water ESV in Chuzhou showed a phased change of "fluctuating decline and subsequent recovery" from 2000 to 2022. (2) In terms of spatial distribution, the water ESV exhibits a gradient pattern of "high ESV in the northwest and low ESV in the southeast of the Chuzhou". (3) In terms of ecological and economic coordination, the northwest of the Chuzhou maintain a healthy CEE. However, the southeast of Chuzhou has exacerbated the imbalance in CEE due to the water space occupied by construction land. This study could provide a decision-making basis for formulating ecological priority development strategies in the Jianghuai Watershed Area.

Indexed as

Ecosystem service valueJianghuai Watershed AreaRemote sensingSpatiotemporal evolutionWater

Identifiers

PMID42332018

DOI10.1038/s41598-026-58818-y

PMCPMC13572521

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