县域中心城区的扩张及其驱动力——以山西省灵丘县为例  

Expansion and its driving force of central urban area—A case study of Lingqiu County,Shanxi Province

作　　者：郭岚[1] 王益展 于庆和[2] 张艳明 张全文 GUO Lan;WANG Yi-zhan;YU Qing-he;ZHANG Yan-ming;ZHANG Quan-wen(College of Geomatics,Xi an University of Science and Technology,Xi an 710054,Shaanxi,China;Forest Design and Research Institute of Heilongjiang Province,Harbin 150080,Heilongjiang,China)

机构地区：[1]西安科技大学测绘科学与技术学院,陕西西安710054 [2]黑龙江省林业设计研究院,黑龙江哈尔滨150080

出　　处：《西北师范大学学报（自然科学版）》2021年第4期128-134,共7页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(41807063);陕西省教育厅科研计划资助项目(19JK0522)。

摘　　要：以速度、强度、分形维数和空间重心等指数分析了1980—2018年灵丘县中心城区的时空演变特征,并运用地理探测器识别城镇扩张的驱动因素.结果表明,1980—2018年间灵丘县城镇建设用地呈快速扩张趋势,由1980年的173.69 hm^(2)增长到2018年的1180.57 hm^(2),扩张规模近7倍,分时段研究显示,城镇扩张的速度和强度均在2000—2010年达到最大值;在空间上呈现出向东、西、北3个方向的扩张,形态规则度在2000—2010年间有较大波动,中心城区重心向北部移动明显;对中心城区扩张影响最大的因子为到城镇中心的距离,其次为综合医院和路网密度,自然环境对城镇扩张的影响力较弱;不同因子之间产生交互作用,表现为双因子增强和非线性增强,其中,距城镇中心距离和距耕地距离与其他因子交互后影响力增强显著.The temporal and spatial evolution characteristics of Lingqiu County central city from 1980 to 2018 were analyzed by indeXof speed,intensity,fractal dimension and space center,and the drive factors of urban expansion were identified using the geographic detector.The results indicated that the urban construction land in Lingqiu County shows a rapid expansion trend from 1980 to 2018,in which 173.69 hm^(2) in 1980 is increased to 1180.57 hm^(2) in 2018,and the scale of expansion is nearly 7 times.Sub-period study showed that the speed and intensity of urban expansion both reaches their maximum in 2000—2010;in terms of space,it shows an expansion in three directions:the east,the west,and the north.The degree of morphological regularity fluctuates greatly from 2000 to 2010,and the center of gravity in the central city has moved significantly to the north.The factor that has the greatest impact on the expansion of the central city is the distance to the town center,followed by the general hospital and the density of the road network,the natural environment has a weak influence on the expansion of the city.The interaction between different factors is manifested as double-factor enhancement and nonlinear enhancement.Among them,the distance from the town center and the distance from the cultivated land interacts with other factors to increase their influence significantly.

关 键 词：城镇扩张 演化特征 地理探测器 驱动因子 中心城区 

分 类 号：P237[天文地球—摄影测量与遥感] F301.2[天文地球—测绘科学与技术]