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中国科学院大学学报 ›› 2015, Vol. 32 ›› Issue (4): 520-527.DOI: 10.7523/j.issn.2095-6134.2015.04.014

• 环境科学与地理学 • 上一篇    下一篇

基于PCA-DEA模型的中国省际生态效率研究

王敏, 张晓平   

  1. 中国科学院大学资源与环境学院, 北京 100049
  • 收稿日期:2014-08-03 修回日期:2015-03-05 发布日期:2015-07-15
  • 通讯作者: 张晓平
  • 基金资助:
    中国科学院STS计划项目(KFJ-EW-STS-003,KFJ-EW-STS-089)资助

Regional eco-efficiency evaluation of China based on PCA-DEA model

WANG Min, ZHANG Xiaoping   

  1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-08-03 Revised:2015-03-05 Published:2015-07-15

摘要: 利用PCA-DEA模型对中国2004—2012年30个省市区的生态效率进行综合测评.结果表明:1)2种模型得出中国总体生态效率综合平均值分别为0.760和0.581,相对效率较低;自2011年以来有显著提升,且规模效率逐渐向技术效率转变;2)省际生态效率差异明显,但有缩小的趋势;3)东部地区的生态效率最高,但内部差异也最大,整体上东中西部地区内部差异有扩大趋势;4)省区"投入-产出"模式的划分,有助于因地制宜采取不同的政策导向,逐步提高区域社会经济发展的生态效率.

关键词: 生态效率, PCA-DEA模型, 区域差异

Abstract: In order to evaluate eco-efficiency of every province in China from 2004 to 2012, PCA-DEA model was applied. We found that the average of Chinese relative eco-efficiency was low and had no significant change mainly due to technical inefficiency, but the scale efficiency had shifted to technical efficiency since 2011. Although the eco-efficiency disparities between different provinces were obvious, the disparities had decreasing tendency. In contrast, regional disparity of eco-efficiency in the east region tends to expand. Accordingly, policy incentives are suggested to improve the regional eco-efficiency.

Key words: eco-efficiency, PCA-DEA model, regional variation

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