李静,张传慧.中国农业技术进步的绿色产出偏向及影响因素研究——基于1999—2018年农业绿色TFP增长的技术进步产出偏向分解[J].西部论坛,2020,30(3):36-50
中国农业技术进步的绿色产出偏向及影响因素研究——基于1999—2018年农业绿色TFP增长的技术进步产出偏向分解
Research on Green Output Bias of China’s Agricultural Technology Progress and Its Influence Factors: Bias Decomposition of Technology Progress Output Based on Agricultural Green TFP Growth during 1999-2018
  
DOI:
中文关键词:  农业技术进步  绿色TFP  偏向型技术进步  绿色产出偏向  方向性距离函数  农业绿色技术  农业绿色发展
英文关键词:agricultural technology progress  green total factor productivity  biased technological progress  green output bias  directional distance function  agricultural green technology  agricultural green development
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李静,张传慧 合肥工业大学 经济学院安徽 合肥 230601 
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中文摘要:
      在中国农业生产持续增长的同时,环境污染问题成为农业高质量发展的主要障碍之一。将农业主要水污染物(总氮和总磷)排放量作为非期望产出,采用基于RDM方向性距离函数的DEA模型测算并分解1999—2018年中国农业绿色全要素生产率(TFP)增长指数,进一步分析农业技术进步的产出偏向及其影响因素,结果表明:中国农业绿色TFP增长率持续提高,产出偏向型技术进步是农业绿色TFP增长的重要来源;中国农业技术进步具有明显的产出偏向性并总体上偏向绿色产出(即偏向减少污染物排放),表现为技术进步偏向减少总氮和总磷排放的省份数波动上升以及各区域的技术进步绿色产出偏向程度都有所提升,但也存在时空差异;农村居民收入水平、农业人力资本水平、粮食播种面积占比、城乡收入差距、农业政策支持力度的提高有利于农业技术进步绿色产出偏向程度的提升,而城市化水平和农业化肥施用量的增加会阻碍农业技术进步绿色产出偏向程度的提升。应从农业支持政策、环境规制、绿色技术供给、农业生产者发展等多方面多措并举,不断提升农业技术进步的绿色产出偏向程度,以实现农业农村的可持续发展。
英文摘要:
      Environmental pollution becomes one of the main barriers for high-quality development of agriculture while China’s agricultural production continues to grow. Taking the emission quantity of agricultural water pollutants (total nitrogen and total phosphorus) as non-expected output, based on the nonparametric directional distance function model, this paper measures and decomposes the growth index of agricultural green total factor productivity of China’s agriculture during 1999-2018 and further analyzes the output bias of technology progress and its influence factors. The results show that the green total factor productivity of China’s agriculture continues to grow, and the output biased technology progress is the important source of agricultural green TFP growth, China’s agricultural technology progress has obvious output bias, is totally green output biased(bias of pollutants emission reduction), shows the fluctuated rise of the number of the provinces that technology progress reduces the emission of total nitrogen and total phosphorus and displays the rise of all biased extent of technology progress green output but has spatio-temporal difference. The promotion of rural residents income level, agricultural human capital level, the ratio of grain planting area, urban-rural income gap, and agricultural policy support degree is conducive to the improvement of the biased extent of the green output of agricultural technology, however, the increase of urbanization level and agricultural fertilizers utilizing amount can prevent the rise of the biased extent of the green output of agricultural technology progress. The biased extent of the green output of agricultural technology progress should be continuously boosted by multi-measure such as agricultural support policies, environment regulation, green technology supply, agricultural producer development and so on so as to realize the sustainable development of agriculture and villages.
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