中国城市人居活动空间扩展与关联研究——基于整合DMSP/OLS和NPP/VIIRS夜间灯光遥感数据  

Research on the Spatial Expansion and Association of Chinese Urban Living Activities Based on DMSP/OLS and NPP/VIIRS

作　　者：孙赫 李雪铭[1] 刘贺[1] SUN He;LI Xue-ming;LIU He(College of Geography Sciences,Liaoning Normal University,Dalian 116021,China)

机构地区：[1]辽宁师范大学地理科学学院,辽宁大连116021

出　　处：《资源开发与市场》2021年第12期1427-1432,共6页Resource Development & Market

基　　金：国家自然科学基金项目(编号:41171137、41671158);教育部博士点基金项目(编号:20132136110001);辽宁省高等学校优秀人才支持计划资助(编号:LR2013050)。

摘　　要：利用拟合最优幂函数模型,将NPP/VIIRS影像模拟为DMSP/OLS影像,构建中国1992—2020年长时间序列夜间灯光影像集,采用空间扩展测度、空间自相关分析、构建引力模型,分析探究城市人居活动总体特征。结果表明:(1)区域间空间扩展特征分异明显,1992—2020年中国城市人居活动空间面积增加到原来的8.75倍,扩展速度、扩展强度波动显著。(2)Moran′s I指数先上升后下降,空间集聚效应明显;高值区由以北京、广州为中心向东部沿海城市演变,低值区由中、西部地区向西部、东北地区演变。(3)空间关联具有明显异质性特征,各城市人居活动空间发展具有均衡化趋势。Using the fitting function model,simulating the NPP/VIIRS images into DMSP/OLS images,constructing a long time series night light image set in China from 1992-2020,the study used spatial expansion measurement,spatial self-correlation analysis,and gravity model to explore the overall characteristics of urban living activities.The results showed that:(1)Spatial expansion characteristics differed significantly between regions.From 1992 to 2020,urban living activity space area increased to 8.75 times,the expansion speed and intensity fluctuated significantly.(2)Moran′s I index continued to rise then fall,with obvious spatial concentration effect.High-value areas evolved from Beijing and Guangzhou to eastern coastal cities,while the low-value areas evolved from middle and west to west and northeast.(3)Spatial association had obvious characteristic of heterogeneity,and the spatial development of living activities in various cities had a balanced trend.

关 键 词：空间扩展 空间集聚 空间关联 人居活动 夜间灯光 

分 类 号：K901[历史地理—人文地理学]