Space of Urban Fringe Areas in Gongyi City Based on Dynamic Changes of Comprehensive Land Use from 1990 to 2020
Based on the TM/OLI images and statistical yearbook data in 1990 and 2020,this paper used the 1 km×1 km grid to divide the sample areas and extract the comprehensive land use dynamic values of each are-a,and determined the scope of urban fringe areas with the help of mathematical model analysis,and then ana-lyzed the land use change characteristics and expansion mechanism of urban fringe areas in Gongyi City in the past 30 years.The results showed that natural conditions were the basic factors for land use expansion,poli-cies and economy were the core driving forces for the expansion of fringe areas,and transportation had a direc-tive role in the expansion;the land change in the fringe area was mainly characterized by a sharp increase in construction land and a sharp decrease in agricultural land,as well as by the influence of distance and devel-opment time sequence,with interlocking and complex land types and obvious fragmentation characteristics.
urban fringe areasremote sensing imagescomprehensive land use dynamicsland expan-sion mechanism
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