HUBEI AGRICULTURAL SCIENCES ›› 2025, Vol. 64 ›› Issue (6): 72-80.doi: 10.14088/j.cnki.issn0439-8114.2025.06.013

• Resource & Environment • Previous Articles     Next Articles

Spatial differentiation characteristics and influencing factors of “non-grain conversion” of cultivated land in Guizhou Province

LIAO Yan-mei1,2, YIN Lin-jiang3, MENG You-bo1,2, HAN Min1,2, ZHANG Hui1,2, LUO Jie-qiong4   

  1. 1. Guizhou Institute of Natural Resources Survey and Planning, Guiyang 550004, China;
    2. Guizhou Karst Mountain Land Ecosystem and Land Use Field Scientific Observation and Research Station, Ministry of Natural Resources, Guiyang 550001, China;
    3. Institute of Mountain Resources, Guizhou Academy of Sciences, Guiyang 550001, China;
    4. School of Transportation and Civil Engineering, Nantong University, Nantong 226019, Jiangsu, China
  • Received:2025-03-25 Online:2025-06-25 Published:2025-07-18

Abstract: Taking prefecture-level cities and counties as research units, spatial autocorrelation analysis was used to analyze the spatial differentiation characteristics of “non-grain conversion” of cultivated land in Guizhou Province in 2020, and ordinary least squares (OLS) and geographically weighted regression (GWR) methods were applied to explore its influencing factors.The results showed that the area of “non-grain conversion” of cultivated land in Guizhou Province reached 9 331.88 km2 in 2020.The “non-grain conversion” rates of cultivated land were higher in Guiyang City, Tongren City, Zunyi City, Qianxinan Buyi and Miao Autonomous Prefecture, and Qiannan Buyi and Miao Autonomous Prefecture, while the lowest rate was observed in Qiandongnan Miao and Dong Autonomous Prefecture.In terms of the “non-grain conversion” area of cultivated land, all prefecture-level cities generally showed a spatial pattern of high in the north and low in the south.The hotspot areas of “non-grain conversion” rates at the county level were mainly distributed in central Guizhou Province, while the coldspot areas were concentrated in Taijiang County and Rongjiang County of Qiandongnan Miao and Dong Autonomous Prefecture.The hotspot areas of “non-grain conversion” area were predominantly located in northeastern and western counties of Guizhou Province, whereas the coldspot areas were mainly distributed in central and eastern counties.The inhibitory effects of per capita GDP, growth rate of industrial added value above designated size, number of rural employed persons, and karst area proportion, as well as the positive driving effects of transportation land proportion and altitude, all exhibited gradient spatial variations.Influenced by farmer household attributes, natural resources, and socio-economic factors, the spatial differentiation of “non-grain conversion” of cultivated land in Guizhou Province was significant, with notable spatial heterogeneity of influencing factors. Region-specific measures should be adopted to curb “non-grain conversion” based on local conditions.

Key words: cultivated land, “non-grain conversion”, spatial differentiation characteristics, influencing factors, Guizhou Province

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