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Future land use simulation model-based landscape ecological risk prediction under the localized shared socioeconomic pathways in the **angjiang River Basin, China

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Abstract

Landscape ecological risk (LER) is an effective index to identify regional ecological risk and measure regional ecological security. The localized shared socioeconomic pathways (LSSPs) can provide multi-scenario parameters of social and economic development for LER research. The research of LER under LSSPs is of scientific significance and practical value in curbing the breeding and spread of LER risk areas. In this study, land-cover raster files from 2010 to 2020 were used as the foundational data. Future land use simulation (FLUS), regression, and Markov chain models were used to predict the land cover patterns under the five LSSP scenarios in the **angjiang River Basin (XJRB) in 2030. Thus, an evaluation model was established, and the LER of the watershed was evaluated. We found that the rate of land cover change (LCC) in the XJRB between 2010 and 2020 had a higher intensity (increasing at an average of 18.89% per decade) than that projected under the LSSPs for 2020–2030 (averaging an increase of 8.58% per decade). Among the growth rates of all land use types in the XJRB, that of urban land was the highest (33.3%). From 2010 to 2030, the LER in the XJRB was classified as lower risk (33.73%), lowest risk (33.11%), and moderate risk (24.13%) for each decade. Finally, the LER exhibited significant heterogeneity among different scenarios. Specifically, the percentages of regions characterized by the highest (9.77%) and higher LER (9.75%) were notably higher than those in the remaining scenarios. The higher-level risk area under the localized SSP1 demonstrated a clear spatial reduction compared to those of the other four scenarios. In addition, in order to facilitate the differential management and control of LER by relevant departments, risk zoning was carried out at the county level according to the prediction results of LER. And we got three types of risk management regions for the XJRB under the LSSPs.

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The datasets used during the current study are available from the corresponding author on reasonable request.

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Funding

This work was financially supported by the National Natural Science Foundation of China (grant numbers 71974070, 41501593).

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The manuscript was reviewed and approved for publication by all authors. All authors have read and agreed to the published version of the manuscript. Zhengyu Zhang: methodology, software, writing—original draft, writing—review and editing; Han Yu: conceptualization, writing—review, result analysis; Nianci He: writing—original draft, writing—review and editing; Gui **: resources, funding acquisition, conceptualization, supervision.

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Correspondence to Gui **.

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Zhang, Z., Yu, H., He, N. et al. Future land use simulation model-based landscape ecological risk prediction under the localized shared socioeconomic pathways in the **angjiang River Basin, China. Environ Sci Pollut Res 31, 22774–22789 (2024). https://doi.org/10.1007/s11356-024-32621-6

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