珠三角城市群空间扩展格局及其驱动力因子分析——基于DMSP/OLS和NPP/VIIRS影像
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摘要
目的揭示珠三角城市群空间扩展格局及其驱动力因子。方法以珠三角城市群9个主体城市为例,采用1992,1997,2002,2007,2012,2017年6期夜间灯光数据为数据源,提取出珠三角城市群空间范围,分别从扩展强度指数、扩展关联模型及多维驱动力机制3方面探索了珠三角城市群空间扩展过程、格局及动力机制。结果 1992-2017年珠三角城市群空间扩展格局表现为圈层辐射状扩展模式,且热点区与冷点区分布相对稳定;从珠三角城市群扩展的驱动力演化趋势看,表现出以市场力为主要驱动力因子的特征,其次是行政力与内源力,外向力的影响作用最弱,从2002-2012年动态变化角度看,后一阶段经济及社会因素对城市群空间扩展影响作用均有所减弱。结论提出持续深化改革、加大市场主导机制、降低行政干预的政策建议,促进城市群空间结构持续优化及优势互补。
Purposes—To reveal the spatial expansion pattern and its driving factors of Pearl River Delta urban-metropolitan region.Methods—Taking 9 major cities in Pearl River Pearl River Delta urban-metropolitan region as an example,the space extent of Pearl River Delta urban agglomeration is extracted by using the nighttime light data of 1992,1997,2002,2007,2012 and 2017.The expansion process,pattern and dynamic mechanism of Pearl River Delta urban agglomeration are explored from three aspects:the expansion intensity index,the expansion correlation model and the multi-dimensional dynamic mechanism.Results—The spatial expansion pattern of Pearl River Delta urban agglomeration from 1992 to 2017 is the radial expansion mode of the circle,and the distribution of the hot spot and cold spot is relatively stable.From the evolution trend of the expansion of Pearl River Delta urban agglomeration,the main driving force is the market power and followed by the influence of the administrative power and the endogenous power.The weakest impact is the exogenous power.From the dynamic change from 2002 to 2012,economic and social factors weakened on the expansion of urban agglomeration in the latter stage.Conclusions—Some policy suggestions were put forward to optimize metropolitan spatial structure and complementary advantages,such as continuity of deepening reform,building market-driven mechanism,reducing administrative intervention.
Purposes—To reveal the spatial expansion pattern and its driving factors of Pearl River Delta urban-metropolitan region.Methods—Taking 9 major cities in Pearl River Pearl River Delta urban-metropolitan region as an example,the space extent of Pearl River Delta urban agglomeration is extracted by using the nighttime light data of 1992,1997,2002,2007,2012 and 2017.The expansion process,pattern and dynamic mechanism of Pearl River Delta urban agglomeration are explored from three aspects:the expansion intensity index,the expansion correlation model and the multi-dimensional dynamic mechanism.Results—The spatial expansion pattern of Pearl River Delta urban agglomeration from 1992 to 2017 is the radial expansion mode of the circle,and the distribution of the hot spot and cold spot is relatively stable.From the evolution trend of the expansion of Pearl River Delta urban agglomeration,the main driving force is the market power and followed by the influence of the administrative power and the endogenous power.The weakest impact is the exogenous power.From the dynamic change from 2002 to 2012,economic and social factors weakened on the expansion of urban agglomeration in the latter stage.Conclusions—Some policy suggestions were put forward to optimize metropolitan spatial structure and complementary advantages,such as continuity of deepening reform,building market-driven mechanism,reducing administrative intervention.
引文
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[15]舒松,余柏蒗,吴健平,等.基于夜间灯光数据的城市建成区提取方法评价与应用[J].遥感技术与应用,2011,26(2):169-176.
[16]陈明星,陆大道,张华.中国城市化水平的综合测度及其动力因子分析[J].地理学报,2009,64(4):387-398.
[17]欧向军,甄峰,秦永东,等.区域城市化水平综合测度及其理想动力分析——以江苏省为例[J].地理研究,2008,27(5):993-1002.
[18]王劲峰,徐成东.地理探测器:原理与展望[J].地理学报,2017,72(1):116-134.
[19]王利伟,冯长春.转型期京津冀城市群空间扩展格局及其动力机制——基于夜间灯光数据方法[J].地理学报,2016,71(12):2155-2169.
[20]徐秋蓉,郑新奇.一种基于地理探测器的城镇扩展影响机理分析法[J].测绘学报,2015,44(S0):96-101.
[2] LIN GEORGE C S.Metropolitan development in a transitional socialist economy:Spatial restructuring in the Pearl River Delta,China[J].Urban Studies,2001,38(3):383-406.
[3] LIN GEORGE C S.State policy and spatial restructuring in post-reform China,1978-95[J].International Journal of Urban and Regional Research,1999,23(4):670-696.
[4]叶玉瑶,李升发,张虹鸥,等.国土开发密度三维综合评估——以珠江三角洲城市群为例[J].热带地理,2017,37(1):43-55.
[5]丁俊,王开泳.珠三角城市群工业生产空间的时空演化及驱动机制[J].地理研究,2018,37(1):53-66.
[6]丁俊,王开泳.珠江三角洲城市群工业生产空间格局、形态特征及影响因素[J].地理科学进展,2016,35(5):610-621.
[7]梅志雄,徐颂军,欧阳军,等.近20年珠三角城市群城市空间相互作用时空演变[J].地理科学,2012,32(6):694-701.
[8] SHI K F,YU B L,HUANG Y X,et al.Evaluating the ability of NPP-VIIRS nighttime light data to estimate the gross domestic product and the electric power consumption of China at multiple scales:a comparison with DMSP-OLS data[J].Remote Sensing,2014,6(2):1705-1724.
[9] ELVIDGE C D,ZISKIN D,BAUGH K E,et al.A fifteen year record of global natural gas flaring derived from satellite data[J].Energies,2009,2(3):595-622.
[10]宋金超,李新虎,吝涛,等.基于夜晚灯光数据和Google Earth的城市建成区提取分析[J].地球信息科学学报,2015,17(6):750-756.
[11] SUTTON P,ROBERT S D,ELVIDGE C,et al.Census from Heaven:An estimate of the global human population using night-time satellite imagery[J].International Journal of Remote Sensing,2001,22(16):3061-3076.
[12] IMHOFF M L,LAWRENCE W T,STUTZER D C,et al.A technique for using composite DMSP/OLS“City Lights”satellite data to map urban area[J].Remote Sensing of Environment,1997,61(3):361-370.
[13] HENDERSON M,YEH E T,GONG P,et al.Validation of urban boundaries derived from global night-time satellite imagery[J].International Journal of Remote Sensing, 2003, 24(3):595-609.
[14]何春阳,史培军,李景刚,等.基于DMSP/OLS夜间灯光数据和统计数据的中国大陆20世纪90年代城市化空间过程重建研究[J].科学通报,2006,51(7):856-861.
[15]舒松,余柏蒗,吴健平,等.基于夜间灯光数据的城市建成区提取方法评价与应用[J].遥感技术与应用,2011,26(2):169-176.
[16]陈明星,陆大道,张华.中国城市化水平的综合测度及其动力因子分析[J].地理学报,2009,64(4):387-398.
[17]欧向军,甄峰,秦永东,等.区域城市化水平综合测度及其理想动力分析——以江苏省为例[J].地理研究,2008,27(5):993-1002.
[18]王劲峰,徐成东.地理探测器:原理与展望[J].地理学报,2017,72(1):116-134.
[19]王利伟,冯长春.转型期京津冀城市群空间扩展格局及其动力机制——基于夜间灯光数据方法[J].地理学报,2016,71(12):2155-2169.
[20]徐秋蓉,郑新奇.一种基于地理探测器的城镇扩展影响机理分析法[J].测绘学报,2015,44(S0):96-101.