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Towards Sustainable Food Security through Regional Grain Supply and Demand Analysis in China

Author

Listed:
  • Tian Hu

    (Beijing Key Laboratory of Megaregions Sustainable Development Modelling, School of Urban Economics and Public Administration, Capital University of Economics and Business, Beijing 100070, China)

  • Zhengshan Ju

    (Technology Innovation Center of Land Engineering, Ministry of Natural Resources, Beijing 100035, China)

  • Xiaoyang Liu

    (Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100083, China)

Abstract

As a vital part of sustainable development, food security is challenged by prolonged and concurrent pressures. Efforts have long been devoted to balance grain production across China as a whole, and thereby the uncertainties and underlying crisis in the regional grain-producing systems are hidden. In this study, we characterize the dynamic evolution of 357 cities and explore the dominant supply and demand effects to signal early warnings of grain insecurity. Our results show that 220 cities are in unsustainable grain supply–demand conditions in comparison with 10 years ago. Additionally, the south and southwest of China have experienced enlarged disparities and more severe grain insecurity. The dual effects from both increased population and decreased grain output are substantially responsible for the unsustainable grain-producing system on the city scale. Moreover, cities identified as having grain insecurity occupy high-quality cultivated land, including 55.4% of top-grade land, 49.8% of high-grade land, and only 28.9% of low-grade land. We consequently inform the incongruity between grain productivity and regional grain conditions. It is suggested that current intensive management of cultivation and the strategy of differentiated responsibilities in grain production should be based on environmental sustainability and a degree of self-sufficiency across the region.

Suggested Citation

  • Tian Hu & Zhengshan Ju & Xiaoyang Liu, 2023. "Towards Sustainable Food Security through Regional Grain Supply and Demand Analysis in China," IJERPH, MDPI, vol. 20(4), pages 1-12, February.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:4:p:3434-:d:1069998
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    References listed on IDEAS

    as
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