黄河流域农业绿色全要素生产率的空间格局与动态演进
Spatial Pattern and Dynamic Evolution of Agricultural Green Total Factor Productivity in the Yellow River Basin
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摘要: 以2004-2017年黄河流域为研究对象, 提出了一个更为完善的农业绿色全要素生产率(TFP)测算指标体系, 运用考虑非期望产出的SBM模型, 测算了黄河流域省份农业绿色TFP, 使用空间自相关分析、Kernel密度估计和马尔科夫链概率矩阵等方法, 分析了黄河流域农业绿色TFP的空间格局和动态演进规律。结果表明, 黄河流域农业绿色TFP整体上并不高, 2004-2017年的整体变化趋势为略微下降, 上、中、下游具有明显差异, 各省份之间差异较大; 黄河流域农业绿色TFP处于空间分化状态, 整体的空间关联性较弱, 高水平和低水平农业绿色TFP地区各自集聚, 从而使空间分化更加明显, 形成"俱乐部收敛"; 在空间滞后的作用下, 表现出"效率锁定"现象。研究结果可为促进黄河流域区域协调发展和农业绿色发展提供参考依据。Abstract: In this paper, a comprehensive indicator system of agricultural green total factor productivity (TFP) is proposed based on the concept of total factor productivity, and the corresponding agricultural green TFP for the Yellow River Basin provinces from 2004-2017 is calculated using the SBM model. The spatial autocorrelation analysis, kernel density estimation and Markov chain probability matrix are used to analyze the spatial pattern and dynamic evolution of the proposed indicator system. The results show that the agricultural green TFP in the Yellow River basin is not high as a whole, the trend of change between 2004-2017 was slightly decreased. There are obvious differences between provinces, and the spatial connection of the agricultural green TFP in the Yellow River basin is weak. The high-level and low-level agricultural green TFP areas are agglomerated together, which forms "club convergence". Under the effect of spatial lag, the phenomenon of "efficiency locking" was displayed. This study provides a policy implication for promoting the coordinated development of the Yellow River Basin and the green development of agriculture.