The Spatial Pattern Evolution of the County Administrative Region in China Based on the Perspective of Geograph
研究中国县级行政区在封建社会和之后时期的空间格局演变，分析重心移动、方向分布和密度模式，对理解行政区划变迁有参考价值。
Taking the county level administrative region of China as the research object, we got some conclusions by analyzing its spatial pattern:(1) the center of gravity of China's county administrative region mainly moved to the west during the feudal society and after the feudal society, began to move to the east. Studies on points area showed that the center of gravity of China's county administrative region in the west mainly moved to the northwest and in the north moved to the northeast. However, the southern region mainly moved to the southwest during the feudal society and after the feudal society, began to move to the east.(2) The whole county level administrative region and partition exerted decentralization based on the analyses of the standard deviational ellipses. From the perspective of the main direction of the county administrative region distribution, the whole country and the north mainly presents the northeast- southwest and the west and the south presents the northwest- southeast and south- north pattern respectively.(3) Based on the point of county level administrative region spatial density pattern, its space continuity and self- organizing continuously strengthen and structural variation caused by spatial correlation was significant. From the point of direction, the degree of homogenization on the Omni- direction decline overall, but after new China rose slightly, the degree of the homogenization of the county density in every dynasty is relatively well and the spatial difference is minimum in the northwest and southeast, but the spatial difference is most obvious in east and west.