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- 2015
基于PCA-DEA模型的中国省际生态效率研究
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Abstract:
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.
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