DMSP夜间灯光数据与Landsat数据结合的建成区提取研究——以江西省为例  

Extraction of built-up areas using combination of Landsat and DMSP data——a case study of Jiangxi Province

作　　者：王若曦 李建[2] 李熙[1] 陈晓玲[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉430079 [2]武汉大学遥感信息工程学院,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2018年第1期130-136,146,共8页Journal of Central China Normal University：Natural Sciences

基　　金：测绘地理信息公益性行业科研专项项目(201512026)

摘　　要：建成区面积代表着城镇用地水平和发达程度,其变化反映了城市扩张强度和经济发展水平.该文以江西省为研究区域,提出了一种Landsat TM/ETM+光学遥感影像与DMSP/OLS(Defense Meteorological Satellites Program/Operational Linescan System)夜光数据相结合的建成区提取方法,提取精度达到89.7%;利用长时序提取结果分析了江西省1995年~2014年的城市建成区扩张情况,结果表明江西省近20a间建成区面积增加了1 276.33km2,扩张率达423.99%.综合分析建成区提取结果与经济统计指标,结果显示江西省的建成区面积扩张与经济发展存在显著正相关关系(R2=0.62);鄱阳湖生态经济区建立后,区域内城市的建成区建设速度和经济发展速度明显加快.Built-up area reflects the development of modern cities, and its change is an important parameter of spatial distribution and economy. In this study, we proposed a monitor method for extracting built-up area in Jiangxi province with combination of multi-temporal Landsat images and DMSP/OLS （Defense Meteorological Satellites Pro gram/Operational Linescan System） data. The spatial accuracy of the extraction result achieved 89.7%. The dynamics showed that the built-up area had increased 1 276.33 km2 from 1995 to 2014, and the expansion rate reached 423.99%. The relationship be tween urban expansion and economic growth was also explored and it concluded that the area of built up area expansion was highly correlated with the increase of economy （R2= 0.62）. Furthermore, after the establishment of Poyang Lake Eco-Economic Zone, there＇s a significant increase in economy and urban expansion of cities within the zone.

关 键 词：城市遥感监测 LANDSAT DMSP/OLS 建成区 城市扩张 

分 类 号：R237[医药卫生—中医学] F291.1[经济管理—国民经济]