摘要
利用人口统计数据、Landsat OLI和NPP-VIIRS夜间灯光数据,分别提取武汉市主城区及城乡结合部的不透水地表盖度,并结合人口统计数据对武汉市15 m×15 m格网的人口密度进行遥感估算。结果表明:(1)遥感估算结果与统计数据回归方程的决定系数为0.876。根据城市的不同发展程度分区域提取不透水地表盖度精度很高,且利用不透水地表盖度和人口分布的关系估算人口密度的方法可行,能够满足精度要求。(2)武汉市人口呈现出明显的沿长江两岸向外逐渐扩散的空间分布特征,主城区的人口集中分布在长江、汉江及东湖沿岸,而城乡结合部的人口主要分布在主城区边缘和各区的行政中心城镇,其余区域人口分布较为零散。(3)夜间灯光数据和道路数据的加入可以有效提高利用不透水地表估算人口密度的精度。
This study was estimating the population density of Wuhan City at the scale of 15 m×15 m through extracting the impervious surface area(ISA)index in the urban and urban-rural areas of Wuhan City,respectively.The coefficient of determination of the remote sensing estimation results and the statistical regression equation was 0.876.The results indicate that:(1)According to the different degrees of development of the city,the accuracy of extracting the impervious surface area is high,and the method of estimating the population density by using the relationship between the impermeable surface area and the population distribution is feasible and can meet the accuracy requirements;(2)The population of Wuhan has obvious spatial distribution characteristics that gradually spread outward along the banks of the Yangtze River.The population of the main urban area is concentrated along the Yangtze River,Han River and East Lake.The population of the urban-rural junction is mainly distributed in the central city and the central towns of each administrative district.And the population of the rest of the region is relatively scattered.(3)The addition of night-time lighting data and road data can effectively improve the accuracy of estimating population density when using impervious surfaces area.
作者
王娇娇
李中元
WANG Jiaojiao;LI Zhongyuan(Faculty of Resources and Environmental Science,Hubei University,Wuhan 430062,China;Hubei Provincial Key Laboratory of Regional Development and Environmental Response,Hubei University,Wuhan 430062,China)
出处
《地域研究与开发》
CSSCI
CSCD
北大核心
2019年第6期146-151,共6页
Areal Research and Development
基金
湖北省技术创新专项重大项目(2018ABA078)
