农业技术进步视角下的中国玉米生产增长路径选择——基于2004~2016年的省际面板数据

Maize Production Growth in China from the Perspective of Agricultural Technological Progress——Based on the Provincial Panel Data from 2004 to 2016

通过运用E-S模型与C-D生产函数,利用2004~2016年我国玉米三大优势区13个省份的面板数据,从年际变化、发展阶段和区域差异等3个层面,对我国玉米生产的主导技术进步模式进行分析与研判。结果表明,机械投入对劳动投入的替代作用日渐增强,生物化学投入对玉米生产的促进作用相对有限。现阶段我国玉米生产是以机械型技术进步为主。三大玉米优势区之间的技术进步模式存在显著差异,北方春玉米区和黄淮海夏玉米区的机械投入弹性系数要明显高于西南玉米区,北方春玉米区的生物化学投入弹性系数要相对低于黄淮海夏玉米区和西南玉米区。

By using the E-S model and C-D production function,the panel data of 13 provinces at three advan⁃tage regions of maize in China from 2004 to 2016,the leading technological progress mode of maize production was analyzed and proposed from the aspects of inter annual changes,development stages and regional differences.The results showed that,the substitution effect of mechanical input on labor input was increasing,the promotion effect of biochemical input on maize production was relatively limited,maize production was mainly based on mechanical technological progress presently.There were significant differences in the technological progress patterns among the three advantage regions.The northern part and the Huang-Huai-Hai plain were obviously higher than the south⁃western part in elastic coefficients of mechanical input,the northern part was comparatively lower than the HuangHuai-Hai plain and the southwestern part in elastic coefficients of biochemical input.