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Ecological function zoning of Nansi Lake Basin in China based on ecosystem service bundles

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Abstract

Ecological function zoning is an essential means of scientific management of ecosystems. According to the characteristics of ecological function zoning, implementing zoning control is conducive to the governance and protection of the ecological environment and the maintenance of ecological sustainability. This study was conducted with the Nansi Lake Basin as the cross-section for 2018. The Integrated Valuation of Ecosystem Services and Trade-offs model was adopted to assess and measure five ecosystem services, including water yield, crop production, soil conservation, carbon storage and carbon sequestration, and habitat quality. The Self-Organizing Feature Maps neural network was applied to obtain the ecosystem service bundles, and then, the ecological function zones were divided. The results indicated that the overall spatial pattern of ecosystem services in the study zone showed a decreasing schema from east to west; There was a trade-off between supply services and support services and a synergy between supply services and regulatory services; according to the bundling results, the Nansi Lake Basin was divided into four ecological functional zones: the eastern ecological surplus zone, the central crop supply zone, the western ecological balance zone, and the lake habitat protection zone. The results showed that (1) the spatial distribution of various ecosystem services in the Nansi Lake Basin showed spatial heterogeneity and specific regional laws, showing a decreasing pattern from the east to the west as a whole, especially in soil conservation, carbon sequestration, and habitat quality. (2) According to the supply and spatial distribution of each ecosystem service, the Nansi Lake Basin was divided into four ecological functional zones: the eastern ecological surplus zone, the central crop supply zone, the western ecological balance zone, and the lake habitat protection zone. (3) For zone I, provisioning services and regulation services were in synergy. For zone II and zone III, the provisioning service had a trade-off relationship with the regulation service and the supporting service. For zone IV, supporting services were trade-offs not only with provisioning services but also with regulating services. In general, the trade-offs between ecosystem service in the Nansi Lake Basin were stronger than the synergies, and the overall benefits of ecosystem services were smaller. Relying on the perspective of the ecosystem service bundles, at the county level, this study provided an analysis of the trade-offs and synergies among ecosystem services in the Nansi Lake Basin, which helped formulate the management plan for the corresponding region and provided the appropriate recommendations for regional habitat conservation and restoration.

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Funding

This work was funded with support from the Humanities and Social Science General Project of the Ministry of Education, China (grant number 15YJAZH027).

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Yingchun Liu: conceptualization, methodology, software, visualization, writing—original draft. Yande Jing: funding acquisition, project administration, supervision, manuscript design, writing—review and editing. Shanmei Han: formal analysis, writing—review and editing.

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Correspondence to Yande Jing.

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The authors declare no competing interests.

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Responsible Editor: Thomas Hein

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Highlights

• The spatial distribution of ecosystem services in the Nansi Lake Basin showed a decreasing pattern from the east to the west.

• The Self-Organizing Feature Maps neural network was used to identify ecosystem service bundles.

• The Nansi Lake Basin was divided into four ecological functional zones.

• The trade-offs between ecosystem service bundles in the Nansi Lake Basin were stronger than the synergies.

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Liu, Y., Jing, Y. & Han, S. Ecological function zoning of Nansi Lake Basin in China based on ecosystem service bundles. Environ Sci Pollut Res 30, 77343–77357 (2023). https://doi.org/10.1007/s11356-023-27723-6

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  • DOI: https://doi.org/10.1007/s11356-023-27723-6

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