摘要
基于考虑非期望产出的SBM模型,首先测算了2003-2016年中国285个地级市的城市生态效率,并在此基础上进一步比较了全国八大经济区的生态效率差异。其次,采用Tobit模型分析了所研究地级市及经济区生态效率的影响因素。结论表明:(1)全国生态效率在2003-2016年内总体水平不高,整体变化趋势呈现为先下降后上升;(2)北部沿海、东部沿海及南部沿海生态效率水平高于全国平均水平,东北地区、黄河中游、长江中游及西南地区生态效率值与全国生态效率值相当,而西北地区生态效率值则低于全国平均值;(3)繁荣程度、经济聚集对区域生态效率具有显著的正向作用;而人力资本状况、利用外资状况、政府对科技的支持、基础设施状况、政府对经济的干预、金融支持以及环境规制对区域生态效率的影响则存在明显的空间差异。
Based on the SBM model that considers the undesired output,this study first calculates the urban eco-efficiency of 285 prefecture-level cities in China from 2003 to 2016.Then,it further compares the differences in eco-efficiency among the eight economic regions.Moreover,this paper explores the influencing factors of the eco-efficiency for the concerned prefecture-level cities and economic regions.The results show that:(1)from 2003 to 2016,the overall level of eco-efficiency in China was not high,and the trend of change showed a decline first and then an increase;(2)the eco-efficiency level of the northern coastal area,the eastern coastal area and the southern coastal area was higher than the national average,and the eco-efficiency except for the northwest area,values of the remaining economic regions are close to national eco-efficiency values;(3)the level of prosperity and the degree of economic agglomeration had a significant positive effect on the eco-efficiency of China.Whereas,there are obvious spatial differences in the impact of the status of human capital,the utilization of foreign capital,the government support for science and technology,the status of infrastructure,the government intervention in the economy,the financial support and the environmental regulations.
作者
孙伟
马思雨
Sun Wei;Ma Si-yu(Anhui Jianzhu University,Hefei Anhui 230601,China)
出处
《铜陵学院学报》
2020年第6期14-19,共6页
Journal of Tongling University
基金
教育部青年基金项目“空间外部性和低碳视角下流域生态效率的提升机制研究”(17YJC790134)
安徽省教育厅人文社科重点项目“绿色发展视阈下安徽省区域协同发展研究”(SK2019A0626)。
