The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study

Urbanization is one of the most consequential human activities on earth. The contradictions between urbanization and the eco-environment are particularly prominent in urban agglomerations with high industrial concentrations. Based on the Environmental Kuznets Curve (EKC) theory, we propose the hypot...

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Autores principales:	Chuanglin Fang, Haimeng Liu, Shaojian Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Urbanization Eco-environment Coupling curve EKC Urban agglomeration China Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/d37a31c577e14c3ca39bd5bbd3d6fb6f
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id	oai:doaj.org-article:d37a31c577e14c3ca39bd5bbd3d6fb6f
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spelling	oai:doaj.org-article:d37a31c577e14c3ca39bd5bbd3d6fb6f2021-12-01T04:59:17ZThe coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study1470-160X10.1016/j.ecolind.2021.108107https://doaj.org/article/d37a31c577e14c3ca39bd5bbd3d6fb6f2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X2100772Xhttps://doaj.org/toc/1470-160XUrbanization is one of the most consequential human activities on earth. The contradictions between urbanization and the eco-environment are particularly prominent in urban agglomerations with high industrial concentrations. Based on the Environmental Kuznets Curve (EKC) theory, we propose the hypothesis of the Urbanization-EKC (UEKC), which states that in the process of urbanization, eco-environmental quality first deteriorates and then improves, following a “U” trend. Taking 19 Chinese urban agglomerations as empirical cases, this paper analyzed the multi-dimensional coupling curves between urbanization and the eco-environment. The results show that the coupling curves between urbanization and the eco-environment are heterogeneous, as a result of differences among urban agglomerations and various eco-environmental indicators. In five mega-urban agglomerations, we found that the coupled curve of urbanization and eco-environmental quality index (EQI) is a compound function containing logarithm and quadratic terms, following the “U” curve shape of “quick down, slow up”; the turning point of EQI improvement was found at an urbanization rate of 47%. The empirical results validate that the UEKC hypothesis is tenable for developed urban agglomerations. This study provides a methodological reference for researching the evolutionary relationship between urbanization and the eco-environment and provides decision support for a more harmonious development of humans and nature in China's urban agglomerations.Chuanglin FangHaimeng LiuShaojian WangElsevierarticleUrbanizationEco-environmentCoupling curveEKCUrban agglomerationChinaEcologyQH540-549.5ENEcological Indicators, Vol 130, Iss , Pp 108107- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Urbanization Eco-environment Coupling curve EKC Urban agglomeration China Ecology QH540-549.5
spellingShingle	Urbanization Eco-environment Coupling curve EKC Urban agglomeration China Ecology QH540-549.5 Chuanglin Fang Haimeng Liu Shaojian Wang The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study
description	Urbanization is one of the most consequential human activities on earth. The contradictions between urbanization and the eco-environment are particularly prominent in urban agglomerations with high industrial concentrations. Based on the Environmental Kuznets Curve (EKC) theory, we propose the hypothesis of the Urbanization-EKC (UEKC), which states that in the process of urbanization, eco-environmental quality first deteriorates and then improves, following a “U” trend. Taking 19 Chinese urban agglomerations as empirical cases, this paper analyzed the multi-dimensional coupling curves between urbanization and the eco-environment. The results show that the coupling curves between urbanization and the eco-environment are heterogeneous, as a result of differences among urban agglomerations and various eco-environmental indicators. In five mega-urban agglomerations, we found that the coupled curve of urbanization and eco-environmental quality index (EQI) is a compound function containing logarithm and quadratic terms, following the “U” curve shape of “quick down, slow up”; the turning point of EQI improvement was found at an urbanization rate of 47%. The empirical results validate that the UEKC hypothesis is tenable for developed urban agglomerations. This study provides a methodological reference for researching the evolutionary relationship between urbanization and the eco-environment and provides decision support for a more harmonious development of humans and nature in China's urban agglomerations.
format	article
author	Chuanglin Fang Haimeng Liu Shaojian Wang
author_facet	Chuanglin Fang Haimeng Liu Shaojian Wang
author_sort	Chuanglin Fang
title	The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study
title_short	The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study
title_full	The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study
title_fullStr	The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study
title_full_unstemmed	The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study
title_sort	coupling curve between urbanization and the eco-environment: china’s urban agglomeration as a case study
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/d37a31c577e14c3ca39bd5bbd3d6fb6f
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The coupling curve between urbanization and the eco-environment: China’s urban agglomeration as a case study

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