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本文基于方向性距离函数和DEA方法,测算了中国31个省市2000~2011年农业能源效率,分析比较了碳排放约束下全国整体、五大区域及31个省份农业能源效率和节能潜力,并对农业全要素生产率进行分解和收敛性检验。研究表明:碳排放强度相对较低的地区能源效率普遍高于其他地区;全国及五大区域能源效率动态演进趋势由相对集中到逐渐扩散,且增长不明显;考虑碳排放约束下农业全要素生产率和技术进步效率都得到明显提高;五大区域农业全要素生产率存在显著的绝对收敛和条件收敛,全国整体上各地区间差距在逐渐缩小,最终将会稳定在同一水平。文章作者提出制定差别化的农业能源消费结构,提高能源利用效率等措施,有利于缩小各地区间农业全要素生产率差距,并改善各地区间的收敛水平。
Based on the directional distance function and the DEA method, the energy efficiency of agriculture in 31 provinces in China from 2000 to 2011 was estimated. The potential of agricultural energy efficiency and energy saving in the whole country, five major regions and 31 provinces under the carbon emission was analyzed and compared. Decomposition and Convergence Test of Agricultural Total Factor Productivity. The results show that the energy efficiency of the regions with relatively low carbon emission intensity is generally higher than that of other regions. The trend of dynamic evolution of energy efficiency in the whole country and the five regions spreads from relatively concentrated to non-obvious, and the growth is not obvious. Considering the total factor productivity The efficiency of technological progress has been significantly improved. There is a marked absolute convergence and conditional convergence in total factor productivity of agriculture in the five regions. As a whole, the gap between regions in the whole country is gradually narrowing and will eventually stabilize at the same level. The author of the article proposed that formulating differentiated structure of agricultural energy consumption and improving the efficiency of energy utilization will help reduce the disparities in agricultural TFP between regions and improve the level of convergence among different regions.