基于DMSP/OLS夜间灯光数据的环渤海城市群时空演变研究

doi:10.6046/gtzyyg.2019.04.28

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摘要

城市群时空演变过程研究对优化城市群空间结构及促进城市间协调发展均具有重要意义。以1992—2013年DMSP/OLS夜间灯光数据为数据源,综合利用地理信息系统(geographic information system,GIS)空间分析技术、城市位序-规模法则、城市空间扩展速率指数及标准差椭圆等方法对环渤海城市群时空演变过程进行研究,结果表明: ①1992—2013年间,该城市群各城市夜间灯光总量均呈显著增长,整体增长率为135.89%; ②随时间推移,该城市群中心城市对周边地区的辐射带动作用逐步增强,城市规模分布由不均衡状态向均衡状态转变; ③该城市群空间扩展呈中心城市圈层化特征,演变格局表现为由西向东,由北向南的趋势,重心向西南方向偏移,空间范围呈扩张态势。研究可为环渤海及我国其他城市群时空演变研究提供方法借鉴与数据支持。

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	路春燕
	许燕婷
	林晓晴
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	苏颖

关键词 ：环渤海城市群, DMSP/OLS夜间灯光数据, 位序-规模法则, 城市扩展速率指数, 标准差椭圆

Abstract：

The study of the spatio-temporal evolution of urban agglomeration is of great importance for optimizing the spatial structure of urban agglomeration and promoting the coordinated development of cities. Taking the circum-Bohai urban agglomeration as a study case, the authors revealed the characteristics and objective law of urban evolution process from spatial and temporal dimensions. On the basis of DMSP/OLS night-time light data, the spatial distribution and area of urban from 1992 to 2013 were obtained for the circum-Bohai urban agglomeration. Using the rank-size rule model, the authors determined the size characteristics of urban area. Combined with urban spatial expansion speed index and standard deviation ellipsoid method, the intensity and spatial dynamics of urban area change were clarified in the circum-Bohai urban agglomeration. Some conclusions have been reached: (1) from 1992 to 2013, there was a significant increase of the total night-time lights in the circum-Bohai urban agglomeration, with the overall growth rate being 135.89%. (2) The effect of radiative driving effect of the central cities of the urban agglomeration on the surrounding areas gradually enhanced, and the distribution scale of the urban agglomeration changed from the unbalanced state to the equilibrium state with time. (3) The spatial expansion of the urban agglomeration was characterized by the ring stratification around central cities. The evolution pattern of the urban agglomeration was from west to east and from north to south, and its gravity center shifted to the southwest. It can be inferred that the driving force of the circum-Bohai urban agglomeration development was mainly concentrated in the coastal cities. The study can provide data supports and references for the coordinated development of the circum-Bohai urban agglomeration and even the whole country.

Key words： circum-Bohai urban agglomeration DMSP/OLS night-time light data rank-size rule urban spatial expansion speed index standard deviation ellipsoid

收稿日期: 2018-08-31 出版日期: 2019-12-03

TP79

基金资助:教育部人文社会科学研究青年基金项目“多元大数据背景下城市化质量与生态环境压力时空演变过程研究——以海峡西岸城市群为例”(17YJCZH118);福建农林大学科技创新专项基金项目“基于多元数据的海西经济区城市化水平与生态环境承载压力时空耦合关系研究”共同资助(CXZX2016228)

作者简介: 路春燕(1986-),女,博士,讲师,主要从事城市空间信息分析研究。Email: luchunyan@fafu.edu.cn。

引用本文:

路春燕, 许燕婷, 林晓晴, 钟连秀, 苏颖. 基于DMSP/OLS夜间灯光数据的环渤海城市群时空演变研究[J]. 国土资源遥感, 2019, 31(4): 218-226.
Chunyan LU, Yanting XU, Xiaoqing LIN, Lianxiu ZHONG, Ying SU. Study of spatio-temporal evolution of the circum-Bohai urban agglomeration based on DMSP/OLS night-time light data. Remote Sensing for Land & Resources, 2019, 31(4): 218-226.

链接本文:

https://www.gtzyyg.com/CN/10.6046/gtzyyg.2019.04.28 或 https://www.gtzyyg.com/CN/Y2019/V31/I4/218

Tab.1 环渤海城市群基本构成

Fig.1 研究区位置图

Fig.2 1992和2013年环渤海城市群夜间灯光分布

Fig.3 1992—2013年城市夜间灯光总量位序-规模双对数图与|q|时间序列图

Fig.4 1992—2013年环渤海城市群时空演变过程

Tab.2 1992—2013年环渤海城市群空间扩展速率

Fig.5 环渤海城市群及各子城市群GDP与人口变化图

Tab.3 环渤海城市群及其子区域标准差椭圆参数变化

Fig.6 环渤海城市群及子城市群标准差椭圆变化

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