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Modeling population density based on nighttime light images and land use data in China

机译：基于夜间光图像和中国土地利用数据的人口密度建模

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摘要

Population change is a key variable that influences climate change, ecological construction, soil and water use, and economic growth. Census data are always point data, whereas planar data are often required in scientific research. By using nighttime light (NTL) images and land use data, combined with the fifth and sixth census data of China at the county level, we carried out spatial matching on the population of each county, respectively, and established population density diagrams of China for 2000 and 2010, which had a spatial resolution of 1 x 1 km. The method proposed in this paper is relatively simple and has a high simulation precision. The results showed that during the first ten years of the 21st century, there are some remarkable characteristics in Chinese population spatial pattern change: 1) the "disappearance" of intermediate-density regions; namely, areas with a population density between 500 and 1500 persons/km(2) have decreased by 41% during the ten years; 2) continuous growth of high-density regions; namely, areas with a population density of more than 1500 persons/km(2) have increased by 76%; 3) an expansion tendency of low-density regions similar to high-density regions.
机译：人口变化是一种关键变量，影响气候变化，生态建设，土壤和用水和经济增长。人口普查数据始终是点数据，而科学研究通常需要平面数据。通过使用夜间光线（NTL）图像和土地利用数据，与中国的第五和第六个人口普查数据相结合，分别对每个县的人口进行了空间匹配，以及建立了中国人口密度图2000年和2010年，其空间分辨率为1 x 1公里。本文提出的方法相对简单，具有高模拟精度。结果表明，在21世纪的前十年，中国人口空间模式变化存在一些显着的特征：1）中间密度区域的“失踪”;即人口密度在500至1500人/公里（2）之间的地区在十年中减少了41％; 2）高密度区域的连续生长;即人口密度超过1500人/公里（2）的地区增加了76％; 3）类似于高密度区域的低密度区域的膨胀趋势。

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  • 来源
    《Applied Geography》 |2018年第2018期|共9页
  • 作者

    Tan Minghong; Li Xiubin; Li Shiji; Xin Liangjie; Wang Xue; Li Qian; Li Wei; Li Yuanyuan; Xiang Wenli;

  • 作者单位

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Shandong Univ Business Sch Weihai 264209 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

    Chinese Acad Sci IGSNRR Key Lab Land Surface Pattern &

    Simulat Beijing 100101 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;
  • 关键词

    Nighttime light images; Census data; Land use; Population density simulation; China;

    机译：夜间光图像;人口普查数据;土地使用;人口密度模拟;中国;

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