能源环境因素下城市建设用地单要素效率分析

Analysis of Single Factor Efficiency of Urban Construction Land by Considering Energy and Environmental Factors

为研究能源环境因素下我国不同主体功能区城市建设用地单要素效率的区域差异和变化趋势,该文采用超越对数随机前沿模型和单要素效率模型,对我国2003年~2011年284个地级以上城市面板数据进行了分析。结果表明:(1)考虑能源环境因素后,2003年~2011年我国地级及以上城市建设用地产出弹性平均为0.13,其中优化开发区、重点开发区和其他区分别为0.02、0.13和0.18;(2)考虑能源环境因素后,2003年~2011年我国地级及以上城市建设用地单要素效率平均仅为0.45,其中优化开发区、重点开发区和其他区分别为0.50、0.443和0.441,该期间优化开发区建设用地单要素效率提高14.1%,重点开发区下降1%,其他区上升1%。这说明:优化开发区城市的经济发展对建设用地投入的依赖程度明显低于重点开发区和其他区城市;考虑能源环境因素后,我国城市建设用地利用效率总体较低,其中优化开发区高于重点开发区和其他区,并且优化开发区的城市建设用地利用效率呈上升趋势,重点开发区和其他区基本保持不变。该研究可以为我国基于主体功能区建设用地问题治理提供重要参考。

To analysis the regional disparity and its change of single factor efficiency of urban construction land between the main functional-oriented zones by controlling energy and environmental factors,this paper adopts stochastic frontier production function model and single factor efficiency model to analyze the panel data of 284 prefecture-level cities from 2003 to 2011.The results show that:(1)by controlling energy and environmental factors,the output elasticity with respect to urban construction land averages at 0.13 between 2003 and 2011,with optimizing development zone,key development zone and other development zone being 0.02,0.13 and 0.18,respectively;(2 )controlling energy and environmental factors,the single factor efficiency of urban construction land is only 0.45 on average,with optimizing development zone,key development zone and other development zone being 0.50,0.443 and 0.441,respectively.The results further indicate that from 2003 to 2011 urban construction land use efficiency in the optimizing development zone and other development zone increases 14.1% and 1%, respectively,while construction land use efficiency in the key development zone decreases 1%.The results illustrate that:(1)the contribution of construction land input to economy development in the optimizing development zone is much lower than that in the key development zone and other development zones;(2)by controlling energy and environmental factors,the urban land use efficiency is relatively low in China.Land use efficiency in the optimizing development zone is higher and presents an increasing trend,while land use efficiency slightly changes in the key development zone and other development zones.The implication of this paper provides new insights and suggestions of reforming and implementing differential land management policies based on the main functional-oriented zones.