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Identifying the driving forces of cultivated land fragmentation in China

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Abstract

Cultivated land fragmentation (CLF) has severely affected China’s agricultural production efficiency, large-scale operations, agricultural modernization, and food security. Exploring the spatiotemporal evolution patterns and driving forces of CLF is crucial for agricultural modernization. However, the driving forces of CLF in different agricultural regions in China still need to be clarified. In this study, CLF was measured in 2000, 2010, and 2020 based on remote sensing data with landscape pattern metrics, and the driving forces of spatial differentiation were detected based on a geographical detector model. The overall cultivated land area has slightly declined during the study period while the CLF has intensified. CLF showed significant spatial autocorrelation, with CLF increased-cultivated land decreased (2000 to 2010) and CLF decreased-cultivated land decreased (2010 to 2020). The contribution rate of land use intensity on CLF was the highest among all agricultural regions, excluding the Qinghai Tibet Plateau. In contrast, the contribution rates of other factors significantly varied across agricultural regions. These findings provide scientific support in formulating policies to conserve cultivated land for sustainable use of agricultural resources and CLF management in China.

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Funding

This study was supported in part by the National Natural Science Foundation of China [Grant numbers 41701629 and 42371258]. This study was also sponsored by the Scientific Research Project of Education Department of Hubei Province (Grant No. B2022262) and the Philosophy and Social Sciences Research Project of Education Department of Hubei Province (Grant No. 22G024 ).

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Authors and Affiliations

  1. Hubei Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China

    Tianci Gu & Wanxu Chen

  2. Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research (IGSNRR), Chinese Academy of Sciences, Beijing, 100101, China

    Wanxu Chen

  3. School of Public Administration, China University of Geosciences, Wuhan, 430074, China

    Jiale Liang & Sipei Pan

  4. Department of Landscape Architecture and Urban Planning, Texas A&M University, College Station, TX, 77840, USA

    Xinyue Ye

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  1. Tianci Gu
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Contributions

Wanxu Chen: methodology, writing–original draft, resources. Wanxu Chen, Tianci Gu, and Jiale Liang; conceptualization, supervision. Tianci Gu, Sipei Pan, Xinyue Ye: review and editing. Tianci Gu: software, data curation.

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Correspondence to Wanxu Chen.

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Highlights

•Cultivated land fragmentation (CLF) showed an increasing trend.

•Significant spatial autocorrelation was observed between the CLF in China.

•CLF was strongly influenced by land use intensity.

•CLF drivers vary with the diversity and dynamics of agricultural systems.

Supplementary information

ESM 1

Fig. S1 Spatio-temporal distribution of cultivated land PD index in China from 2000 to 2020. Fig. S Spatio-temporal distribution of cultivated land ED index in China from 2000 to 2020. Fig. S3 Spatio-temporal distribution of cultivated land AREA_AM index in China from 2000 to 2020. Fig. S4 Spatio-temporal distribution of cultivated land IJI index in China from 2000 to 2020. Fig. S5 Spatio-temporal distribution of cultivated land TE index in China from 2000 to 2020. Fig. S Spatio-temporal distribution of cultivated land AI index in China from 2000 to 2020. Fig. S7 Spatio-temporal distribution of cultivated land SHAPE_AM index in China from 2000 to 2020. Fig. S8 Spatio-temporal distribution of cultivated land DIVISION index in China from 2000 to 2020. (DOCX 642 kb)

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Gu, T., Chen, W., Liang, J. et al. Identifying the driving forces of cultivated land fragmentation in China. Environ Sci Pollut Res 30, 105275–105292 (2023). https://doi.org/10.1007/s11356-023-29797-8

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