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Spatiotemporal evolution of ecosystem service value and topographic gradient effect in the Da-Xiao Liangshan Mountains in Sichuan Province, China

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Abstract

The Da-Xiao Liangshan mountains are critical ecological function areas and essential ecological barriers in the upper reaches of the Yangtze River in China. This study selected a total of six periods of land use land cover (LULC) data from 1995 to 2020, to estimate the ecosystem service value (ESV) and analyzed its spatiotemporal evolution and topographic gradient divergence. The results showed that: (1) The ESV increased by 1.1 billion yuan, with an increase rate of 1.47% from 1995 to 2020. Two time periods, 2005–2010 and 2015–2020, showed more significant increases than other periods. (2) The elevation and slope of mountainous areas determine the type of land use and further influence the spatial pattern of ESV. (3) Although woodland and grassland are the main land use types of the study area (more than 90%), the hydrological regulation function of the water area partially compensated for the impact of the encroachment of the built-up area on the ESV of grassland. (4) The spatial distribution of ESVs showed an inverted V-shaped characteristic as the topographic gradient increased, with the dominant position being the 5th topographic gradient zone. Finally, this study provided relevant recommendations for ecosystem protection and optimization. The findings of this study clarified the influence of topographical factors on the spatial differentiation of ESV and provided novel insights into ecosystem protection.

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Acknowledgments

The paper is supported by the National Natural Science Foundation of China (Grant No. 52078423), the Sichuan Province Science and Technology Support Program (Grant No. 2020YFS0309 and 2020YFS0054), the China Engineering Science and Technology Strategic Consulting Project (Grant No. 2022JDR0356), and the Key Research Institution of Philosophy and Social Sciences in Sichuan Province: Research Center of National Parks (Grant No. GJGY2023-YB001).

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Authors and Affiliations

Authors

Contributions

JIN Tao: data curation, formal analysis, methodology, writing-original draft, writing-review and editing. CHEN Yang: conceptualization, methodology, writing-original draft, writing-review and editing. SHU Bo: conceptualization, formal analysis, methodology. GAO Min: data curation, formal analysis, visualization. QIU Jian: conceptualization, methodology, funding acquisition, writing-review and editing.

Corresponding authors

Correspondence to Yang Chen or Jian Qiu.

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Data Availability: Due to the sensitive nature of the data, it is not made openly accessible. Researchers interested in accessing the data can contact the corresponding author.

Conflict of Interest: The authors declare no conflicts of interest.

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Jin, T., Chen, Y., Shu, B. et al. Spatiotemporal evolution of ecosystem service value and topographic gradient effect in the Da-Xiao Liangshan Mountains in Sichuan Province, China. J. Mt. Sci. 20, 2344–2357 (2023). https://doi.org/10.1007/s11629-023-7986-9

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  • DOI: https://doi.org/10.1007/s11629-023-7986-9

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