黄河流域农业绿色全要素生产率的时空差异及收敛性分析

Analysis of Spatiotemporal Differences and Convergence of Agricultural Green Total Factor Productivity in the Yellow River Basin

本文在考虑将农业碳排放指标作为农业绿色转型发展中的非期望产出指标基础上,构建了黄河流域农业绿色全要素生产率测算指标体系,并基于非期望产出的SBM模型和收敛性模型,测算了2010年以来黄河流域农业绿色全要素生产率的时空差异,对其收敛性进行了分析。结果表明,在时间维度,黄河流域农业绿色全要素生产率呈现逐年递增趋势;在空间维度,黄河流域各省份农业绿色全要素生产率发展并不均衡,下游省份农业绿色全要素生产率依次优于中游和上游省份。在收敛性方面,黄河流域各省份农业绿色全要素生产率并不存在收敛和收敛,即不存在农业绿色全要素生产率低的省份向高省份的“追赶效应”。

Based on fully considering the agricultural carbon emissions indicator as an unexpected output indicator in the development of agricultural green transformation,this paper constructs a measurement index system for agricultural green total factor productivity in the Yellow River Basin.Based on the SBM model and convergence model of unexpected output,the spatiotemporal differences in agricultural green total factor productivity in the Yellow River Basin since 2010 are calculated,and its convergence is analyzed.The results indicate that in the time dimension,the green total factor productivity of agriculture in the Yellow River Basin shows an increasing trend year by year;In terms of spatial dimension,the development of agricultural green total factor productivity in various provinces of the Yellow River Basin is not balanced,and the agricultural green total factor productivity in downstream provinces is superior to that in midstream and upstream provinces in order.In terms of convergence,the green total factor productivity of agriculture in various provinces of the Yellow River Basin does not existαConvergence andβConvergence,that is,there is no“catch-up effect”of provinces with low agricultural green total factor productivity moving towards higher provinces.