Spatiotemporal dynamics of urban sprawl in China from 2000 to 2020

ABSTRACTAccurately and timely quantifying the dynamics of urban sprawl is essential for improving land use efficiency and land use planning. However, existing research mainly focused on the sprawl of a single city or urban agglomerations in China, while national scale studies mainly used short-term...

Full description

Saved in:
Bibliographic Details
Published inGIScience and remote sensing Vol. 61; no. 1
Main Authors Hou, Yiming, Huang, Qingxu, Ren, Qiang, Gu, Tianci, Zhou, Yihan, Wu, Pengxin, Fan, Yuxiang, Zhu, Guoliang
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 31.12.2024
Subjects
geodetector model
territorial spatial planning
urban expansion
urban geography
urban sustainability
urbanization
Online AccessGet full text

Cover

More Information
Summary:ABSTRACTAccurately and timely quantifying the dynamics of urban sprawl is essential for improving land use efficiency and land use planning. However, existing research mainly focused on the sprawl of a single city or urban agglomerations in China, while national scale studies mainly used short-term remote sensing data to quantify urban sprawl. Therefore, we still lack a long term and most up-to-date understanding of urban sprawl in China, especially in different regions, cities of different sizes. Here, we quantified the spatiotemporal dynamics of urban sprawl using urban sprawl index (USI) based on the latest population census, and analyzed its driving force in China during 2000 ~ 2020 using the optimal parameters-based geographical detector. The results showed that in the past two decades, Chinese cities were still experiencing urban sprawl, with an average USI of 3.04, indicating that the average annual growth rate of urban lands was 3.04% higher than that of the urban population. Overall, the sprawl showed a slowdown, with the USI dropping from 3.55 in 2000 ~ 2010 to 2.53 in 2010 ~ 2020. Among regions, urban sprawl was more severe in the western region, where the USI was 5.33 during 2000 ~ 2020 and 89.3% of the cities exceeded the national average sprawl speed. Recently, the driving force of transportation on urban sprawl substantially increased. In the future, the Territorial Spatial Planning should pay attention to confining excessive sprawl of small- and medium-sized cities in the western region of China.
ISSN:1548-1603
1943-7226
DOI:10.1080/15481603.2024.2351262