2010-2017年中国典型城市群土地利用格局变化及其驱动力比较分析OA北大核心CSTPCD

It is of great significance to clarify the land use change and its driving factors in typical urban agglomerations for ecological environment protection and territorial spatial planning.Based on the land use data produced by the National Land Use Survey,we compared the land use change and its driving factors in Harbin-Changchun(HC),Shandong Peninsula(SD)and the western coast of the Taiwan Strait(HX)urban agglomerations from 2010 to 2017 using a series of qualitative and quantitative methods(such as land use change amplitude,land use change rate,and transition matrix of the land use types).The results showed that the main land use changes in three urban agglomerations were the transformation from other land use types to construction land.The changed area in descending order were HX(2186.27 km2),SD(1056.45 km2)and HC urban agglomerations(897.91 km2).The cropland area in HX urban agglomeration showed a net increase(192.00 km2),in which the cropland loss area was 18755.00 km2 and the increased area was 18948.00 km2.However,both of the HC and SD urban agglomerations had net loss in cropland area.Furthermore,population growth,economic development,and transportation construction were the main drivers for the expansion of construction land in the three urban agglomerations,while climate warming also had a positive impact on the northward migration of newly increased cropland in HC urban agglomeration.Therefore,there were significant variations in land use change and the driving factors among the three urban agglomerations.