长三角地区城镇土地经济密度多尺度空间格局演变及驱动因素分析  

The Evolution and Driving Factors of Multi-scale Spatial Pattern of Urban Land Economic Density in the Yangtze River Delta Region

作　　者：何蓓蓓 卞月峰 袁誉萌 周百灵 HE Bei-bei;BIAN Yue-feng;YUAN Yu-meng(Jiangsu Suzhou Cadre College,Suzhou,Jiangsu 215000)

机构地区：[1]江苏苏州干部学院,江苏苏州215000

出　　处：《安徽农业科学》2025年第7期198-204,257,共8页Journal of Anhui Agricultural Sciences

摘　　要：基于2022年多时空高分辨率全球城市边界解译数据,以长三角地区306个县(市、区)以上城市为研究对象,从省域、市域和县域3个尺度,综合运用泰尔指数、空间自相关分析、地理探测器等方法揭示长三角地区城镇土地经济密度的空间格局分布特征及驱动因素。结果表明:①长三角地区城镇经济密度总体不高,地区间差异明显,从市域尺度看,53.65%的城市土地经济密度低于平均值,主要分布在江苏和安徽的北部地区,该地区的多数城市区域内空间差异性也较大;从县域尺度看,76.47%的县(市、区)土地经济密度低于平均水平,比市级尺度分布更广,3省均有涉及。②长三角地区无论在市级层次还是县域尺度上,城镇土地经济密度均呈现显著的空间正相关性,主要表现为3种类型集聚状态(不包括H-L高值异质区),其中,H-H高值集聚区和L-H低值异质区分布较少。低值集聚区是覆盖城市数量最多、最为集中的一个片区,此类型区域的城镇土地经济密度均处于低密度区,平均密度不超过2亿元/km^(2),是长三角地区未来需重点关注的区域。在不同的空间尺度上,空间集聚的分布范围也呈现出一定的差异性,县域尺度上表现得更具有分散性。③经济因素对长三角地区城镇土地经济密度的影响最大,但从具体的指标来看,三大片区的影响因素及其解释力存在一定差异性。总体来看,人均GDP、产业结构、地均固定资产投资额、二三产业劳动力密度对各大片区都有较好的解释能力。Based on the multi-temporal and high-resolution global urban border interpretation data in 2022,taking 306 counties(cities,districts)and above in the Yangtze River Delta as the research object,the study used Tail index,global and local spatial autocorrelation analysis to reveal the characteristic and driving factor of the spatial evolution of urban land economic density in the Yangtze River Delta from the provincial,municipal and county areas.The results of the study show that:①The urban land economic density of the Yangtze River Delta is generally not high,and the differences between regions are obvious.From the city scale,53.65%of the urban land economic density is lower than the average level and distributed mainly in the northern of Jiangsu and Anhui.The space differences in most cities in that regions are also large;from the perspective of the county scale,76.47%of county(city,district)land economic density is lower than the average level,which is widely distributed than the municipal level.②In the Yangtze River Delta region,the economic density of urban land at the city level and county-level scale show significant spatial positive correlations,mainly manifested in three types of agglomerations(excluding H-L high-value heterogeneous regions).Among them,the high-value agglomeration and low-value heterogeneous areas are distributed less.The low-value agglomeration area is the most gathering area covering the largest number of cities and the key focus area in the future.The economic density of urban land in this type of area is a low-density area and the average density does not exceed 200 million yuan/km^(2).At different space scale,the spatial agglomeration is a certain difference,and the county-level scale is more scattered.③Economic factors have the greatest impact on the economic density of land in the Yangtze River Delta region,but from the perspective of specific indicators,there are certain differences in the influencing factors and their explanatory power in the three major areas.Per capita GDP,

关 键 词：地经济密度 驱动因素 多尺度 长三角地区 

分 类 号：F301.2[经济管理—产业经济]