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Spatiotemporal Variations of Cropland Quality and Morphology Under the Requisition–Compensation Balance Policy

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  • Zhuochun Lin

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Zejia Chen

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Fengyu Zhang

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Jiapei Li

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Yifei Liufu

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Lisiren Cao

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China)

  • Jinyao Lin

    (School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China
    Huangpu Research School of Guangzhou University, Guangzhou 510006, China)

Abstract

The Requisition–Compensation Balance of Cropland (RCBC) policy is important for ensuring food security. Previous studies have mainly focused on the quantity and quality of cropland when assessing the impacts of this policy. In terms of morphology, previous studies have primarily relied on landscape indicators. Therefore, this study aims to thoroughly analyze the impacts of the RCBC policy on the quality and morphology of cropland (especially morphological spatial pattern analysis, MSPA) in the Pearl River Delta (PRD) during 1996–2021. To this end, we constructed a comprehensive evaluation index system by combining MSPA, landscape indicators, and field research. The results show that the cropland quality in the PRD has exhibited a consistent improvement trend. High-quality cropland is spreading from central cities to the periphery, and the spatial distribution is becoming more even. Nonetheless, MSPA reveals an increasing trend of cropland fragmentation. The results indicate a decline in the area of the “core”, an increase in the area of the “island”, and a decrease in the connectivity of the cropland. Our field research confirms that the RCBC policy has indirectly exacerbated cropland fragmentation. In many regions of the PRD, the fragmentation of cropland hinders the application of agricultural mechanization and increases the cost of cultivation, resulting in severe cropland abandonment. Therefore, local governments should implement rigorous planning and prioritize cropland morphology when compensating cropland. Our findings are expected to provide empirical evidence for improving the RCBC policy and protecting cropland.

Suggested Citation

  • Zhuochun Lin & Zejia Chen & Fengyu Zhang & Jiapei Li & Yifei Liufu & Lisiren Cao & Jinyao Lin, 2025. "Spatiotemporal Variations of Cropland Quality and Morphology Under the Requisition–Compensation Balance Policy," Land, MDPI, vol. 14(6), pages 1-19, June.
    • Handle: RePEc:gam:jlands:v:14:y:2025:i:6:p:1235-:d:1674406
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