Study on the Dynamic of Urban Sprawl in Zhanjiang City Using RS and GIS

This study aims to realize the dynamics of Zhanjiang’s built-up area sprawl from 2013 to 2021. The method applies Landsat8 OLI remote sensing imagery data from December 2013 and Phase II of December 2021, combined with Remote Sensing (RS) and Geographic Information System (GIS) technology for analyzing the spatiotemporal characteristics and driving factors by combining the urban sprawl index, sprawl model and location conditions, socio-economic development, policy factors and other relevant data. The results show that the sprawl trend of Zhanjiang City during this period is slow, and the sprawl model is mainly “pie spreading”. The spatiotemporal characteristics of its urban built-up area sprawl are related to the overall urban planning, regional advantages and social and economic factors.

Keywords: Remote Sensing (RS), Geographical Information System (GIS), Urban Sprawl,Urbanization growth index (UGI) , Land Use Transfer Matrix