大连金普新区城镇空间拓展特征研究  

Study on Urban Spatial Expansion Characteristics of Jinpu New District in Dalian

作　　者：李欣欣 何飞[1] 王利[1] 

机构地区：[1]辽宁师范大学城市与环境学院,辽宁大连116029

出　　处：《地理空间信息》2018年第1期27-31,共5页Geospatial Information

基　　金：国家科技支撑计划资助项目(2008BAH31B06);部省共建人文社会科学重点研究基地资助项目(14JJD790038)

摘　　要：以金普新区为例,利用DMSP/OLS夜间灯光数据和VIIRS/NPP DNB新型夜间灯光数据,采用较高分辨率数据比较法,提取了金普新区城镇空间信息,并对提取结果进行了精度验证。运用等扇分析法和环形分析法对新区建成区的扩展变化特征和驱动因素进行了分析,具体表现为:扩展强度呈波动上升趋势;在各方向的拓展特征中,N、NNE和NEE扇区是建成区拓展的主导方向;从历史变化过程来看,拓展热点地区呈由西北到东南再到西北的倒立"钟摆式"发展历程;紧凑度前平后升,分形维数先升后降,形状指数前降后平;外部形态整体较为破碎,但具有一定的"趋圆性"。自然环境、社会经济条件、交通路网和政策措施共同决定了金普新区的城市形态特征。Taking Jinpu New District for example,based on DMSP/OLS nighttime light data and VIIRS/NPP DNB night lights new data,this paper used high resolution data comparison method to extract the urban spatial information of Jinpu New District,and verified the accuracy of the extraction results.And then,the paper obtained the morphological characteristics of the built-up area by using the methods of equal fan analysis and circular analysis.The specific performances as follows:the intensity of the expansion shows a trend of rising volatility,and the N,NNE and NEE sectors are the dominant direction of the development of the built-up areas in the direction of the expansion of each direction.From the historical process of change,the hot development areas show an inverted "pendulum" development process.The compactness is flat then rise,the fractal dimension increases first and then decreases,and the shape index decreases and after it is flat.The external shape is more broken,but it has a certain "roundness".The natural environment,social and economic conditions,traffic network and policy measures have created the characteristics of the Jinpu New District.

关 键 词：DMSP/OLS数据 VIIRS/NPP DNB数据 城镇空间 分形理论 金普新区 

分 类 号：P237[天文地球—摄影测量与遥感]