湖北农业科学 ›› 2025, Vol. 64 ›› Issue (6): 65-71.doi: 10.14088/j.cnki.issn0439-8114.2025.06.012

• 资源·环境 • 上一篇    下一篇

喀斯特山区耕地“非粮化”空间分布特征及驱动机制研究——以黔南州为例

张慧1, 陈洋1, 王斌2, 刘义祥2   

  1. 1.贵州省自然资源勘测规划研究院,贵阳 550000;
    2.黔南州自然资源局,贵州 黔南州 558000
  • 收稿日期:2025-03-25 出版日期:2025-06-25 发布日期:2025-07-18
  • 通讯作者: 王 斌,高级工程师,主要从事土地资源管理研究,(电子信箱)460165240@qq.com。
  • 作者简介:张 慧(1980-),女,贵州大方人,高级工程师,主要从事自然资源调查监测和耕地保护研究,(电子信箱)438649469@qq.com
  • 基金资助:
    贵州省重大科技专项(黔科合重大专项[2022]001)

Study on the spatial distribution characteristics and driving mechanism of “non-grain conversion” of cropland in Karst mountain area: A case study of Qiannan Prefecture

ZHANG Hui1, CHEN Yang1, WANG Bin2, LIU Yi-xiang2   

  1. 1. Guizhou Institute of Natural Resources Survey and Planning, Guiyang 550000, China;
    2. Natural Resources Bureau of Qiannan Prefecture, Qiannan 558000, Guizhou, China
  • Received:2025-03-25 Published:2025-06-25 Online:2025-07-18

摘要: 基于黔南州2013年耕地数据和2023年土地利用数据,采用土地利用转移矩阵分析耕地“非粮化”的分布特征,建立耕地非粮化率计算模型,研究耕地坡度、耕地质量、道路距离、居民点距离、水源距离5个驱动因子对黔南州耕地“非粮化”的驱动作用。结果表明,黔南州2013—2023年耕地非粮化面积为167 210.34 hm2,耕地非粮化率为31.89%;耕地“非粮化”主要表现为耕地转为林地和园地,二者占耕地非粮化总面积的98.52%;随着耕地质量降低,耕地坡度增加,耕地与道路、居民点、水源距离增加,耕地非粮化率均呈上升趋势,且上升明显,这5个因子对耕地“非粮化”的影响权重分别为0.31、0.25、0.19、0.15、0.10。其中,自然条件因素(耕地质量和耕地坡度)对耕地“非粮化”的影响权重达0.56。

关键词: 耕地“非粮化”, 空间分布, 驱动因素, 喀斯特山区, 黔南州

Abstract: Based on 2013 cropland data and 2023 land use data from Qiannan Prefecture, the spatial distribution characteristics of “non-grain conversion” of cropland were analyzed using the land use transition matrix. A computational model was established to quantify the cropland non-grain conversion rate, and the driving effects of five factors, including cropland slope, quality, distance to roads, distance to settlements, and distance to water sources, were systematically investigated. The results showed that the non-grain conversion area of cropland in Qiannan Prefecture from 2013 to 2023 was 167 210.34 hm2, and the non-grain conversion rate was 31.89%. The “non-grain conversion” of cropland was dominated by the transformation of cropland to forest land and orchards,which accounted for 98.52% of the total “non-grain conversion” of cropland area. The non-grain conversion rate exhibited a significant positive correlation with declining cropland quality, increasing slope steepness, and greater distances to roads, settlements, and water sources. The influence weights of these five factors on “non-grain conversion” of cropland were 0.31, 0.25, 0.19, 0.15, and 0.10, respectively. Among them, the influence weights of natural condition factors (cropland quality and slope steepness) on “non-grain conversion” of cropland reached 0.56.

Key words: “non-grain conversion” of cropland, spatial distribution, driving factor, Karst mountainous area, Qiannan Prefecture

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