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Sustainability 2015, 7(11), 15407-15422;

Eco-Efficiency Trends and Decoupling Analysis of Environmental Pressures in Tianjin, China

1,* , 1
School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
Department of Environmental Science and Engineering, Binhai College, Nankai University, Tianjin 300270, China
Tianjin Academy of Environmental Sciences, Tianjin 300191, China
Author to whom correspondence should be addressed.
Academic Editor: Vincenzo Torretta
Received: 17 September 2015 / Revised: 2 November 2015 / Accepted: 12 November 2015 / Published: 19 November 2015
(This article belongs to the Section Sustainable Use of the Environment and Resources)
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This study analyzes Tianjin’s eco-efficiency trends during the period 2001–2013 and reasons for their changes, with the aim of contributing to efforts to ensure the city’s sustainable development. While eco-efficiency of all of the indicators that we analyzed showed improvements during the study period, a gap remained in comparison to the more advanced eco-efficiency observed both domestically and internationally. We subsequently introduced decoupling indices to examine the decoupling relationship between environmental pressure and economic growth. This analysis demonstrated that some progress occurred during the study period resulting from the implementation of existing policies and measures entailing resource conservation and reduction in the emission of pollutants. The latter applied, especially, to sulfur dioxide (SO2) and chemical oxygen demand (COD), which both retained strong decoupling states from 2006 to 2013. Other indicators showed an apparent tendency toward decoupling, but most displayed weak decoupling. These findings indicate that further efforts are urgently required to promote strong decoupling. At the end of the twelfth Five-Year Plan period, Tianjin should consider formulating policies from the perspectives of resource consumption and pollutant emissions reduction to promote further sustainable development. View Full-Text
Keywords: eco-efficiency; decoupling analysis; sustainable development; Tianjin eco-efficiency; decoupling analysis; sustainable development; Tianjin

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Wang, Z.; Zhao, L.; Mao, G.; Wu, B. Eco-Efficiency Trends and Decoupling Analysis of Environmental Pressures in Tianjin, China. Sustainability 2015, 7, 15407-15422.

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