Translated Title
Urban spatio-temporal expansion process for resource-exhausted cities: A case study of Huaibei city
Translated Abstract
Urban spatial expansion is one of the important indexes that measures the progress of urbanization in the context of new urbanization,and is also of great significance to research on sustainable development of resource-exhausted cities.Firstly,with advanced remote sensing and GIS technologies,the area of building lands in Huaibei in 1992,1997,2002,2007,2011 and 2016 was extracted by using remote-sensing index-based built-up index (IBI).During the extraction,the data source was multi-temporal Landsat series remote-sensing images.Assistance was provided to Matlab to complete the delimitation and automatic extraction of boundaries of built-up areas (BUAs) in Huaibei.In the research region,the building area increased by 116.55 km2 (by 8.54 times) from 13.64 km2 to 130.19 km2 throughout the study period.Furthermore,spatial and temporal characteristic measurement indexes,such as intensity of urbanization,elastic coefficient of expansion,focuses and compactness index,were selected to reveal the spatial and temporal evolution of building lands in the study area in recent 25 years.The results indicate that the overall intensity of urbanization is moderate,and the intensity of urban expansion is high in the research period;elastic coefficient of expansion indicates that urban land utilization is not highly intensive in the region under research,and man-land relationships develop uncoordinatedly;with respect to changes in BUAs in the research period,the focuses are mainly in the east and relatively concentrated;with the acceleration of reform and opening up and the planning and establishment of economic and technological development zones,compactness of land utilization is gradually decreased in BUAs.Finally,driving and influencing factors of urban spatial expansion were further analyzed from perspectives of economic development,population,policy planning,means of transportation and mining collapse.The results indicate that economy and population,government decision-making (planning),level of transportation and mining collapse zones are driving,guiding,endogenous and restriction mechanisms of urban spatial expansion in Huaibei respectively.
Translated Keyword
driving force
Huaibei city
remote sensing
resource-exhausted cities
urban spatio-temporal expansion
Access Number
WF:perioarticaldlyj201801014
