时空空间差异,耕地利用效率的动态演变和趋势:基于三个食品功能领域
1College of Economics and Management, Jilin Agricultural University, Changchun, 130118, China.
Heliyon
|March 15, 2024
概括
中国中国中国中国.
科学领域:
- 农业经济学 农业经济学
- 空间分析 空间分析
- 资源管理 资源管理
背景情况:
- 中国的农业正在转型,使得耕地利用效率 (CLUE) 对粮食安全至关重要.
- 了解CLUE的区域差异对于政策制定至关重要.
研究的目的:
- 分析中国三大食品功能区 (TFA) 的耕地利用效率 (CLUE) 的区域差异和动态.
- 研究CLUE在中国的空间分布和长期趋势.
主要方法:
- 从2000年至2021年省级面板数据.
- 测量不平等的达格姆-吉尼系数.
- 核密度估计和马尔科夫链用于分析分布动态和过渡.
主要成果:
- 耕地利用效率 (CLUE) 显示全国和TFA内部的水平不断提高,绝对差异正在减少.
- 在TFA中区域间的差异正在缩小,跨组差异正在上升.
- 上升的CLUE转变比其他变化更有可能发生,空间溢出效应促进了趋同.
结论:
- 中国的TFA中的CLUE正在趋同,这是由空间溢出效应驱动的.
- 改善CLUE需要解决区域差异,并利用空间溢出效应促进协同发展.
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