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资本深化和土地平均粮食收益率趋同:来自中国的证据

Sicheng Zhao¹, Yu Hong¹, Guogang Wang¹

¹Institute of Agricultural Economics and Development, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.

|August 6, 2024

概括

增加对农业的资本投资,包括肥料,农药和机械,大大促进了中国的发展.

科学领域:

农业经济学农业经济学
农业学是一种农业学.
经济发展经济发展

背景情况:

中国的经济发展导致劳动力从农业转移到非农业部门.
这种转变增加了相对于资本的劳动力成本,推动农业生产向资本密集型实践.
尽管粮食产量增加,但中国粮食生产的资本深化原因尚不清楚.

研究的目的:

研究各种资本投资对中国粮食收益率增长的影响.
分析资本投资对中国主要粮食生产区增长趋同的影响.
了解中国粮食生产中资本深化的驱动因素.

主要方法:

利用了来自农产品成本效益数据汇编 (CCBDAP) 的数据.
研究了资本投资 (化学肥料,农药,机械) 与谷物产量之间的关系.
对关键作物的土地产量进行评估的β趋同:早期印加米,日本米,小麦和玉米.

主要成果:

化学肥料,农药和机械投入的增加是谷物产量增长的关键驱动因素.
在主要粮食作物中发现了平均土地产量的β趋同的证据.
资本深化在中国粮食产量增长中发挥着重要作用.

结论:

建议进一步进行资本投资,以加快每单位土地的谷物产量.
建议实施一个跨省平衡系统,用于耕地占用和补偿.
需要对谷物种植的空间分布进行战略调整,以优化土地利用并确保粮食安全.

关键词:

资本替代资本替代资本替代收收收收收收粮食安全粮食安全玉米玉米玉米是一种小麦小麦小麦的小麦.

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