New indices to capture the evolution characteristics of urban expansion structure and form

A quantitative description is the basis for correctly understanding the urban expansion process. Previous approaches were dedicated to identifying expansion types based on the boundary sharing rate, thereby depicting the evolution of urban expansion. These methods, however, focused on describing nei...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jiafeng Liu, Limin Jiao, Boen Zhang, Gang Xu, Ludi Yang, Ting Dong, Zhibang Xu, Jing Zhong, Zhengzi Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Urban expansion process Dynamic spatial metrics Urban structure Urban form Location centrality index (LCI) Location centrality aggregation index (LCAI) Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/5cd9912336da47e0ba2a74a0795c52c2
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5cd9912336da47e0ba2a74a0795c52c2
record_format	dspace
spelling	oai:doaj.org-article:5cd9912336da47e0ba2a74a0795c52c22021-12-01T04:41:57ZNew indices to capture the evolution characteristics of urban expansion structure and form1470-160X10.1016/j.ecolind.2020.107302https://doaj.org/article/5cd9912336da47e0ba2a74a0795c52c22021-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312449https://doaj.org/toc/1470-160XA quantitative description is the basis for correctly understanding the urban expansion process. Previous approaches were dedicated to identifying expansion types based on the boundary sharing rate, thereby depicting the evolution of urban expansion. These methods, however, focused on describing neighborhood relations and ignored urban global expansion structure and form information. In this study, we first propose a new index, the location centrality index (LCI), to capture the expansion structure characteristics by incorporating an “area-inverse distance” weighting algorithm and geometric features. Then, we propose another index, the location centrality aggregation index (LCAI), to depict the heterogeneous evolution of urban form by considering the attribute of the new patch. The location centrality and location aggregation types are identified to reflect the effect of new patches on the urban expansion structure and form based on LCI and LCAI, respectively. Two variants of LCI and LCAI are also proposed to reflect the global bottom-up characteristics of urban expansion. The LCI and LCAI were verified using four periods of Landsat images (1995, 2000, 2005, and 2010) of the Wuhan metropolitan area, China. The results show that the overall development trend of the expansion structure in the Wuhan metropolitan area was toward decentralization. The urban form had become generally separated, but tended toward aggregation from 2005 to 2010. Our findings also reveal that the LCI fills the gap in the dynamic assessment of urban expansion with previous indices by explicitly uncovering global structure characteristics. The LCAI achieves better performance than previous indices in identifying heterogeneous aggregation.Jiafeng LiuLimin JiaoBoen ZhangGang XuLudi YangTing DongZhibang XuJing ZhongZhengzi ZhouElsevierarticleUrban expansion processDynamic spatial metricsUrban structureUrban formLocation centrality index (LCI)Location centrality aggregation index (LCAI)EcologyQH540-549.5ENEcological Indicators, Vol 122, Iss , Pp 107302- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Urban expansion process Dynamic spatial metrics Urban structure Urban form Location centrality index (LCI) Location centrality aggregation index (LCAI) Ecology QH540-549.5
spellingShingle	Urban expansion process Dynamic spatial metrics Urban structure Urban form Location centrality index (LCI) Location centrality aggregation index (LCAI) Ecology QH540-549.5 Jiafeng Liu Limin Jiao Boen Zhang Gang Xu Ludi Yang Ting Dong Zhibang Xu Jing Zhong Zhengzi Zhou New indices to capture the evolution characteristics of urban expansion structure and form
description	A quantitative description is the basis for correctly understanding the urban expansion process. Previous approaches were dedicated to identifying expansion types based on the boundary sharing rate, thereby depicting the evolution of urban expansion. These methods, however, focused on describing neighborhood relations and ignored urban global expansion structure and form information. In this study, we first propose a new index, the location centrality index (LCI), to capture the expansion structure characteristics by incorporating an “area-inverse distance” weighting algorithm and geometric features. Then, we propose another index, the location centrality aggregation index (LCAI), to depict the heterogeneous evolution of urban form by considering the attribute of the new patch. The location centrality and location aggregation types are identified to reflect the effect of new patches on the urban expansion structure and form based on LCI and LCAI, respectively. Two variants of LCI and LCAI are also proposed to reflect the global bottom-up characteristics of urban expansion. The LCI and LCAI were verified using four periods of Landsat images (1995, 2000, 2005, and 2010) of the Wuhan metropolitan area, China. The results show that the overall development trend of the expansion structure in the Wuhan metropolitan area was toward decentralization. The urban form had become generally separated, but tended toward aggregation from 2005 to 2010. Our findings also reveal that the LCI fills the gap in the dynamic assessment of urban expansion with previous indices by explicitly uncovering global structure characteristics. The LCAI achieves better performance than previous indices in identifying heterogeneous aggregation.
format	article
author	Jiafeng Liu Limin Jiao Boen Zhang Gang Xu Ludi Yang Ting Dong Zhibang Xu Jing Zhong Zhengzi Zhou
author_facet	Jiafeng Liu Limin Jiao Boen Zhang Gang Xu Ludi Yang Ting Dong Zhibang Xu Jing Zhong Zhengzi Zhou
author_sort	Jiafeng Liu
title	New indices to capture the evolution characteristics of urban expansion structure and form
title_short	New indices to capture the evolution characteristics of urban expansion structure and form
title_full	New indices to capture the evolution characteristics of urban expansion structure and form
title_fullStr	New indices to capture the evolution characteristics of urban expansion structure and form
title_full_unstemmed	New indices to capture the evolution characteristics of urban expansion structure and form
title_sort	new indices to capture the evolution characteristics of urban expansion structure and form
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5cd9912336da47e0ba2a74a0795c52c2
work_keys_str_mv	AT jiafengliu newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT liminjiao newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT boenzhang newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT gangxu newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT ludiyang newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT tingdong newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT zhibangxu newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT jingzhong newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform AT zhengzizhou newindicestocapturetheevolutioncharacteristicsofurbanexpansionstructureandform
_version_	1718405809659969536

New indices to capture the evolution characteristics of urban expansion structure and form

Ejemplares similares