中国东部沿海地区四大城市群生态效率评价

发布时间：2018-01-15 02:10

本文关键词：中国东部沿海地区四大城市群生态效率评价　出处：《地理学报》2017年11期 　论文类型：期刊论文

【摘要】：东部沿海地区城市群是国家经济发展的战略核心区和国家新型城镇化的主体区之一,其经济—生态可持续发展问题是近年来地理研究领域的前沿主题。首先对城市群生态效率进行定义并将其作为城市群可持续发展测度指标;随后运用传统DEA模型及非期望产出SBM模型,对东部沿海地区四大城市群在2005年、2011年、2014年三个时间截面中的经济效率、生态效率进行比较评价并分析了城市群生态效率时空演变特征;最后通过松弛度分析,为改善沿海地区四大城市群生态效率提供了对应建议。结果表明:(1)山东半岛城市群、长三角城市群、珠三角城市群经济综合效率呈先下降后上升的V字型演变格局,而京津冀城市群经济综合效率始终呈下降趋势,2011年前其受纯技术效率影响较大,2011年后受规模效率影响较大;(2)京津冀城市群受污染影响带来的效率损失最大,山东半岛城市群相对较小,总体而言,四大城市群生态效率在2005-2011年为下行期,2011-2014为修复期;(3)沿海四大城市群内城市生态效率时空格局具有不同的演化特征,核心城市周边以及沿海沿江地区城市生态效率相对较优,内陆城市则较低;(4)京津冀城市群、长三角城市群、珠三角城市群核心城市资源消耗强度高、经济效益产出高、生态效率高,从整体来看,城市群内多数城市呈污染物排放量下降趋势,污染物治理效果较为明显,环境影响问题有所改善;(5)影响东部四大城市群经济生态效率的原因不同,本文从城市群角度进行了差异性分析,并提出了合理化建议。
[Abstract]:The urban agglomeration in the eastern coastal areas is one of the strategic core areas of the national economic development and one of the main areas of the new urbanization of the country. The problem of economic-ecological sustainable development is the frontier topic in the field of geography research in recent years. Firstly, the ecological efficiency of urban agglomeration is defined and used as the measure index of sustainable development of urban agglomeration. Then using the traditional DEA model and the non-expected output SBM model, the economic efficiency of the four urban agglomerations in the eastern coastal areas in 2005, 2011 and 2014 were analyzed. The ecological efficiency of urban agglomeration is evaluated comparatively and the characteristics of spatial and temporal evolution of ecological efficiency of urban agglomeration are analyzed. Finally, through the relaxation analysis, it provides corresponding suggestions for improving the ecological efficiency of the four urban agglomerations in coastal areas. The results show that the Shandong Peninsula urban agglomeration and the Yangtze River Delta urban agglomeration. The economic comprehensive efficiency of Pearl River Delta urban agglomeration decreased first and then increased, while the economic comprehensive efficiency of Beijing-Tianjin-Hebei urban agglomeration showed a downward trend. Before 2011, it was greatly affected by pure technical efficiency. After 2011, it was greatly affected by scale efficiency. 2) Beijing-Tianjin-Hebei urban agglomeration suffered the biggest loss of efficiency caused by pollution, and the Shandong Peninsula urban agglomeration was relatively small. Overall, the ecological efficiency of the four urban agglomerations was in the downward period from 2005 to 2011. (a) the restoration period 2011-2014; 3) the spatial and temporal patterns of urban ecological efficiency in the four urban agglomerations along the coast have different evolution characteristics. The urban ecological efficiency of the core cities and the coastal areas along the Yangtze River is relatively better, while that of the inland cities is relatively low. 4) Beijing-Tianjin-Hebei urban agglomeration, Yangtze River Delta urban agglomeration and Pearl River Delta urban agglomeration have high resource consumption intensity, high economic benefit and high ecological efficiency. Most cities in urban agglomeration showed a decreasing trend of pollutant emission, the effect of pollutant treatment was obvious, and the environmental impact problem was improved. 5) the reasons that affect the economic and ecological efficiency of the four urban agglomerations in the east are different. This paper analyzes the differences from the angle of urban agglomeration, and puts forward some reasonable suggestions.
【作者单位】：中国科学院地理科学与资源研究所;中国科学院大学资源与环境学院;首都师范大学资源环境与旅游学院;
【基金】：国家自然科学基金重大项目(41590840,41590842);国家自然科学基金项目(41371177)~~
【分类号】：F224;F299.27
【正文快照】： 1引言城市群作为国家新型工业化与新型城镇化发展到较高阶段的必然产物,是国家参与全球竞争与国际分工的全新地域单元,也是“一带一路”建设的主战场,城市群的发展对于国家新型城镇化和经济社会发展中有着举足轻重的主宰与主导地位[1]。1978年至今,中国实行了“T”字型和“π

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