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Agricultural Land Suitability Assessment at the County Scale in Taiyuan, China

Author

Listed:
  • Juan Xu

    (Research Center of Agricultural Economy, School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Cuicui Jiao

    (Research Center of Agricultural Economy, School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Dalun Zheng

    (Research Center of Agricultural Economy, School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Luoxin Li

    (Research Center of Agricultural Economy, School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

Abstract

Conducting agricultural land suitability assessments (ALSA) scientifically is crucial for ensuring food security and fostering sustainable agricultural development. This study assessed the suitability of agricultural land in Taiyuan using a geographic information system (GIS) and the analytic hierarchy process (AHP), integrating factors such as topography, soil, water sources, and social conditions at a 1 km spatial resolution. The primary aim was to map the spatial distribution of agricultural land suitability and understand county-level variations. Given the irreversible impact of urban development on land use and the critical importance of ecological conservation, corresponding subtractions for urban and natural protected areas have been applied in this study during the assessment of agricultural land suitability. The findings revealed that Taiyuan’s agricultural land suitability generally falls within an intermediate range, without areas classified as completely unsuitable (lowest rank) or suitable (highest rank). The agricultural land suitability does not reach the extreme conditions of being “unsuitable” (lowest rank) nor “suitable” (highest rank), reflecting an overall intermediate potential for agricultural production across the entirety of Taiyuan. The spatial distribution indicates higher suitability in the east and lower in the west, with 33.1% of Taiyuan’s territorial area deemed relatively suitable, 61.3% moderately suitable, and only 5.6% generally suitable for agricultural production. Recommendations include focusing on high-economic-return crops in suitable areas, adopting drought-resistant varieties and enhancing agricultural infrastructure in moderately suitable areas, and prioritizing ecological conservation in generally suitable areas. Additionally, county-level strategies suggest differentiated agricultural models: agritourism and boutique agriculture in urban conflict areas like Qingxu and Wanbailin; cultivation of cold-resistant crops in ecologically fragile areas like Loufan; and sustainable agricultural practices like planting drought-resistant crops in water-scarce regions like Yangqu. This comprehensive assessment offers valuable insights for optimizing agricultural land allocation in Taiyuan, balancing economic development with ecological sustainability.

Suggested Citation

  • Juan Xu & Cuicui Jiao & Dalun Zheng & Luoxin Li, 2023. "Agricultural Land Suitability Assessment at the County Scale in Taiyuan, China," Agriculture, MDPI, vol. 14(1), pages 1-20, December.
    • Handle: RePEc:gam:jagris:v:14:y:2023:i:1:p:16-:d:1305292
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    References listed on IDEAS

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