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技术异质性下中国耕地利用生态全要素生产率时空演变及提升路径 被引量:5

Spatiotemporal evolution and improvement pathway of ecological total factor productivity of cultivated land use in China under technological heterogeneity
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摘要 【目的】揭示耕地利用生态全要素生产率增长的动力源泉,探究耕地利用生态全要素生产率的提升路径,为促进耕地利用绿色转型提供政策参考。【方法】将Meta-frontier分析框架与Non-radial Malmquist-Luenberger生产率指数相结合,构建Meta-frontier Non-radial Malmquist-Luenberger(MNML)生产率指数模型,从而有效解决了如何在技术异质性框架下对能够考虑非期望产出的耕地利用生态效率和生态全要素生产率的评价问题。【结果】利用MNML生产率指数对1997—2019年中国耕地利用生态效率和生态全要素生产率进行评价,研究发现:(1)共同前沿下中国耕地利用生态效率均值为0.350,仍有65.0%的可改善空间;除东部地区之外,中、西部地区群组前沿下的耕地利用生态效率值远高于共同前沿下的耕地利用生态效率值。(2)中国耕地利用生态全要素生产率年均增长4.0%,并且主要由耕地利用技术进步驱动,而耕地利用技术效率则阻碍了耕地利用生态全要素生产率增长。(3)中国耕地利用生态全要素生产率呈东、西部高,中部低的分布特征,且东、中、西部地区耕地利用生态全要素生产率的增长模式各不相同。【结论】在对耕地利用生态效率或生态全要素生产率进行测度时,需要按照某种标准将具有技术异质性特征的决策单元划分为具有相同或者相似技术水平的群组;东部地区的生产技术代表了全国潜在最优生产技术,中、西部地区的生产技术则与全国潜在最优生产技术之间存在较大差距;中国耕地利用生态全要素生产率及其分解指数均存在明显的空间异质性特征,因此本文构建了差异化的耕地利用生态全要素生产率提升路径。 [Objective]The objective of this research was to reveal the driving force of the growth of ecological total factor productivity of cultivated land use,explore the pathway of improvement of ecological total factor productivity of cultivated land use,and provide policy references for promoting the green transformation of cultivated land use.[Methods]By combining the Metafrontier analytical framework with the Non-radial Malmquist-Luenberger productivity index,the Meta-frontier Non-radial Malmquist-Luenberger(MNML)productivity index model was constructed,thus effectively solving the problem of how to evaluate the ecological efficiency and ecological total factor productivity of cultivated land use that can take into account undesirable outputs in the framework of technological heterogeneity.[Results]The MNML productivity index was used to evaluate the ecological efficiency and total factor productivity of cultivated land use in China from 1997 to 2019.The study results showed that:(1)Under the meta-frontier,the mean value of cultivated land use ecological efficiency in China was 0.350,and there was still 65.0%room for improvement;Except for the eastern region,the ecological efficiency values of cultivated land use under the group-frontier in the central and western regions were much higher than that under the meta-frontier.(2)The annual average growth rate of ecological total factor productivity of cultivated land use in China was 4.0%,which was mainly driven by technological progress of cultivated land use,while technical efficiency of cultivated land use hindered the growth of ecological total factor productivity of cultivated land use.(3)The distribution of ecological total factor productivity of cultivated land use in China was characterized by high levels in the eastern and western regions and low levels in the central region,and the growth patterns of ecological total factor productivity of cultivated land use in the eastern,central,and western China were different.[Conclusion]When measuring the ecological efficiency or total factor productivity of cultivated land use,it was necessary to divide the decision-making units with the characteristics of technological heterogeneity into groups with the same or similar technological level according to a certain standard,so as to meet the requirements of the data envelopment analysis(DEA)model for the technological homogeneity of decision-making units within the same group.The production technology in the eastern region represented the national potential optimal production technology,while there was still a big gap between the production technology in the central and western regions and the national potential optimal production technology.There was a clear spatial heterogeneity in both the ecological total factor productivity of cultivated land use and its decomposition index in China.So differentiated pathways to improve the ecological total factor productivity of cultivated land use should be constructed,and policies related to high quality cultivated land use should be formulated based on regional technological heterogeneity.
作者 韩海彬 王娇芬 HAN Haibin;WANG Jiaofen(School of Public Administration,Tianjin University of Commerce,Tianjin 300134,China)
出处 《资源科学》 CSSCI CSCD 北大核心 2023年第2期235-249,共15页 Resources Science
基金 国家社会科学基金项目(14BTJ014)。
关键词 技术异质性 共同前沿 耕地利用 生态全要素生产率 非径向方向性距离函数 MNML生产率指数 中国 technological heterogeneity meta-frontier cultivated land use ecological total factor productivity non-radial directional distance function MNML productivity index China
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