Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River

Urban growth boundaries (UGBs) are seen as an effective tool to control urban sprawl and promote sustainable urban development. Existing methodologies related to urban boundary delineation focus mainly on increasing land intensification and compact urban development. However, it is not sufficient to...

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Autores principales:	Xuedi Yang, Yongping Bai, Lei Che, Fuwei Qiao, Lixia Xie
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ecologically fragile area EC-CA-Markov model Urban growth boundary Upper Yellow River Linxia Hui Autonomous Prefecture Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/da72b0fbba3d4b0abff31e677c659c2d
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id	oai:doaj.org-article:da72b0fbba3d4b0abff31e677c659c2d
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spelling	oai:doaj.org-article:da72b0fbba3d4b0abff31e677c659c2d2021-12-01T04:46:08ZIncorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River1470-160X10.1016/j.ecolind.2021.107436https://doaj.org/article/da72b0fbba3d4b0abff31e677c659c2d2021-05-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21001011https://doaj.org/toc/1470-160XUrban growth boundaries (UGBs) are seen as an effective tool to control urban sprawl and promote sustainable urban development. Existing methodologies related to urban boundary delineation focus mainly on increasing land intensification and compact urban development. However, it is not sufficient to focus on optimal urban development, especially in China. The delineation of UGBs should not only take into account the heterogeneity of regional natural resources but also further reconcile urban–ecological conflict. Therefore, this paper proposes a new framework for delineating UGBs in an ecologically sustainable manner. This study first uses the remote sensing ecological index (RSEI) and ecological sensitivity as a basis for ecological constraints (EC). Both the background state of the regional ecology and ecological stress from human activities are considered to be constraints on urban sprawl. These ecological constraints are then combined with a CA-Markov model to simulate future urban development. The framework is applied to the Linxia Hui Autonomous Prefecture, an ecologically fragile region in China, where UGB delineation can be used not only to reconcile ecological and land-use planning conflict but also to ensure sustainable resource development in individual zoning districts. The results suggest that a plan that only considers urban development may have a negative impact on the conservation of natural resources and ecological sustainability. The delineation of UGBs based on the proposed EC-CA-Markov model will thus help guide sustainable urban development. The conceptual and methodological advances in this study are applicable to other ecologically fragile cities and can help in the delineation of UGBs.Xuedi YangYongping BaiLei CheFuwei QiaoLixia XieElsevierarticleEcologically fragile areaEC-CA-Markov modelUrban growth boundaryUpper Yellow RiverLinxia Hui Autonomous PrefectureEcologyQH540-549.5ENEcological Indicators, Vol 124, Iss , Pp 107436- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ecologically fragile area EC-CA-Markov model Urban growth boundary Upper Yellow River Linxia Hui Autonomous Prefecture Ecology QH540-549.5
spellingShingle	Ecologically fragile area EC-CA-Markov model Urban growth boundary Upper Yellow River Linxia Hui Autonomous Prefecture Ecology QH540-549.5 Xuedi Yang Yongping Bai Lei Che Fuwei Qiao Lixia Xie Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River
description	Urban growth boundaries (UGBs) are seen as an effective tool to control urban sprawl and promote sustainable urban development. Existing methodologies related to urban boundary delineation focus mainly on increasing land intensification and compact urban development. However, it is not sufficient to focus on optimal urban development, especially in China. The delineation of UGBs should not only take into account the heterogeneity of regional natural resources but also further reconcile urban–ecological conflict. Therefore, this paper proposes a new framework for delineating UGBs in an ecologically sustainable manner. This study first uses the remote sensing ecological index (RSEI) and ecological sensitivity as a basis for ecological constraints (EC). Both the background state of the regional ecology and ecological stress from human activities are considered to be constraints on urban sprawl. These ecological constraints are then combined with a CA-Markov model to simulate future urban development. The framework is applied to the Linxia Hui Autonomous Prefecture, an ecologically fragile region in China, where UGB delineation can be used not only to reconcile ecological and land-use planning conflict but also to ensure sustainable resource development in individual zoning districts. The results suggest that a plan that only considers urban development may have a negative impact on the conservation of natural resources and ecological sustainability. The delineation of UGBs based on the proposed EC-CA-Markov model will thus help guide sustainable urban development. The conceptual and methodological advances in this study are applicable to other ecologically fragile cities and can help in the delineation of UGBs.
format	article
author	Xuedi Yang Yongping Bai Lei Che Fuwei Qiao Lixia Xie
author_facet	Xuedi Yang Yongping Bai Lei Che Fuwei Qiao Lixia Xie
author_sort	Xuedi Yang
title	Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River
title_short	Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River
title_full	Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River
title_fullStr	Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River
title_full_unstemmed	Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River
title_sort	incorporating ecological constraints into urban growth boundaries: a case study of ecologically fragile areas in the upper yellow river
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/da72b0fbba3d4b0abff31e677c659c2d
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Incorporating ecological constraints into urban growth boundaries: A case study of ecologically fragile areas in the Upper Yellow River

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