揭示了农村人口老龄化,技术效率和中国农业碳排放之间的联系
Hongen Song1, Changyi Jiang1, Zhaoming Sun1
1School of Economics and Management (College of Cooperatives), Qingdao Agricultural University, Qingdao, Shandong.
PloS one
|June 6, 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
- 环境科学 环境科学
- 人口统计学 人口统计学
背景情况:
- 中国的人口正在老龄化,65岁及以上的人口显著增加,特别是在农村地区.
- 这种人口变化需要对其对农业实践和环境结果的影响进行审查.
- 了解农村人口老龄化和农业碳排放之间的相互作用对于可持续发展至关重要.
研究的目的:
- 研究农村人口老龄化与中国农业碳排放之间的关系.
- 分析农业技术效率在这种关系中的调解作用.
- 在人口变化的背景下,为绿色和可持续的农业发展提供政策信息.
主要方法:
- 利用固定效应和介导效应模型来分析2010-2019年的数据.
- 采用政府间气候变化专门委员会 (IPCC) 的方法来计算农业碳排放.
- 检查了技术效率作为一个关键的调解变量.
主要成果:
- 中国的农业碳排放在2010-2019年间呈现了反转的U形趋势,在2015年达到顶峰.
- 农村人口老龄化被发现促进了农业碳排放.
- 农业技术效率的提高被证明可以抑制碳排放,老龄化通过这种中介效应削弱了排放.
结论:
- 农村人口老龄化对农业碳排放有着复杂的影响,技术效率为媒介.
- 政策必须将人口趋势与农业技术发展相结合,以有效减少碳排放.
- 建议增加对农业研究的财政支持,以提高技术和促进低碳农业.
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