基于夜间灯光数据的内蒙古县域经济空间格局演化研究
王振柱 , 梁海山 , 程琳琳 , 赵雪
内蒙古师范大学学报(自然科学版) ›› 2024, Vol. 53 ›› Issue (03) : 229 -237.
基于夜间灯光数据的内蒙古县域经济空间格局演化研究
A Study on the Evolution of County Economic Spatial Pattern in Inner Mongolia Based on Nighttime Light Data
采用标准差、变异系数以及空间关联的分析方法,以夜间灯光数据衡量县域经济发展水平,对内蒙古自治区(简称内蒙古)103个县域的经济空间格局进行可视化分析,探究近30年来内蒙古县域经济的空间格局演化。结果表明:1992—2022年,内蒙古县域经济绝对差异持续上升,但增速减缓,相对差异处于下降的状态,内蒙古西部(蒙西)、中部(蒙中)与东部(蒙东)县域经济差异与内蒙古县域经济差异的发展趋势具有一致性;内蒙古县域经济空间分异特征明显,随着时间推移,经济发展水平较高的县域开始集中于蒙中的“呼包鄂乌”地区以及蒙东的赤峰市和通辽市,内蒙古县域经济空间格局的双核结构日趋明显;内蒙古县域经济水平在1992年、2002年、2012年、2022年4个节点上存在显著的空间自相关性且逐渐增强,空间关联类型动态特征并不明显,仅在原有的经济格局基础上微调;关联类型以“L‒L”为主,主要位于蒙东地区,呈集中连片分布特征,“H‒H”类型一直位于呼和浩特市与包头市,空间正相关县域单元比例的上升说明内蒙古县域经济两极分化现象愈加明显。
To investigate the spatiotemporal evolution of county-level economic disparities in Inner Mongolia over the past three decades, visualization analysis was performed on the temporal characteristics and spatial patterns of economic disparities for 103 counties in Inner Mongolia. The analysis was implemented by using spatial correlation method, as well as the standard deviation, coefficient of variation as two indicators, and the nighttime light data were used as a proxy variable to gauge the level of county economic development. The results revealed that the absolute disparities in the county level economy of Inner Mongolia increased continuously, but the growth rate slowed down, and relative disparities was in decreasing state from 1992 to 2022, in general, the development trend of the economic disparities between counties in western, central, and eastern Inner Mongolia was in consistent with that of Inner Mongolia. The spatial differentiation of the county level economy of Inner Mongolia was becoming obvious, with the time, the counties with higher level economic development gradually concentrated in the "Hu-Bao-E-Wu" region in central Inner Mongolia, as well as Chifeng and Tongliao cities in eastern Inner Mongolia, a dual core pattern of Inner Mongolia's county-level economic spatial pattern was becoming increasingly evident. The economic levels of Inner Mongolia counties presented significant spatial autocorrelation at four marked year in 1992, 2002, 2012, and 2022, indicating an increasingly strengthened interdependence among counties' economies in Inner Mongolia, the dynamic characteristics of spatial correlation types were not obvious and had not undergone significant changes, but only minor adjustments were made on the basis of the original economic pattern. The correlation types predominated by "L-L" type, which concentrated within eastern Inner Mongolia and exhibited centralized contiguous distribution characteristics; meanwhile, the "H-H" type correlations persistently existed in Hohhot and Baotou cities respectively. The growing proportion of spatially positively correlated county units suggested an intensifying polarization trend within Inner Mongolian county economies.
nighttime light / Inner Mongolia / county economy / spatial pattern
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内蒙古自治区哲学社会科学规划资助项目“内蒙古推动战略性新兴产业四链深度融合研究”(2023NDC190)
赤峰市国土空间规划与灾害应急管理重点实验室建设资助项目(CFXYZD202006)
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