张秋媛, 彭明春, 王崇云, 周长威. 基于DMSP/OLS夜间灯光数据的贵州省人口分布及影响因子分析[J]. 云南大学学报(自然科学版), 2019, 41(5): 992-1000. doi: 10.7540/j.ynu.20180815
引用本文: 张秋媛, 彭明春, 王崇云, 周长威. 基于DMSP/OLS夜间灯光数据的贵州省人口分布及影响因子分析[J]. 云南大学学报(自然科学版), 2019, 41(5): 992-1000. doi: 10.7540/j.ynu.20180815
ZHANG Qiu-yuan, PENG Ming-chun, WANG Chong-yun, ZHOU Chang-wei. Population distribution of Guizhou Province based on DMSP/OLS night lighting data[J]. Journal of Yunnan University: Natural Sciences Edition, 2019, 41(5): 992-1000. DOI: 10.7540/j.ynu.20180815
Citation: ZHANG Qiu-yuan, PENG Ming-chun, WANG Chong-yun, ZHOU Chang-wei. Population distribution of Guizhou Province based on DMSP/OLS night lighting data[J]. Journal of Yunnan University: Natural Sciences Edition, 2019, 41(5): 992-1000. DOI: 10.7540/j.ynu.20180815

基于DMSP/OLS夜间灯光数据的贵州省人口分布及影响因子分析

Population distribution of Guizhou Province based on DMSP/OLS night lighting data

  • 摘要: 贵州省的人口分布和经济发展是中国极不均衡的地区之一,人口空间化为了解精细人口分布特征提供有力的技术支持,并为区域发展提供指导. 基于1993、2003年和2013年贵州省夜间灯光数据及常住人口统计数据建模反演得到人口分布格网图,先以常住人口统计数据为真实数据,对人口空间化结果进行精度检验,再以2013年贵州省人口分布图分别与土地利用、海拔、坡度等因子进行叠加分析,进一步探究人口分布的特征. 结果表明:①20年间,人口集中于以贵阳市为中心形成集中区域,并且此区域逐年增大. ②各县级区划人口集中分布在城镇,人口密度增大,集中面积增大. ③贵州省46.05%的人口分布在草地区域,其次是林地和耕地,城镇用地面积较少,且人口密度大,分布集中. ④按海拔梯度可将贵州省划分为三大阶梯,东部低海拔地区和西部高海拔地区的人口分布较少,中部中高海拔地区面积最大,人口总数最多. ⑤贵州省大部分人口集中分布于坡度<15°的区域,随坡度的增加,人口分布减少.

     

    Abstract: Guizhou Province of China is one of the regions with the most uneven population distribution and economic development in the country. The spatialization of population provides strong technical support for us to understand the characteristics of fine population distribution and provides guidance for regional development. Based on the nighttime lighting data and the resident population demographic data modeling inversion in 1993, 2003 and 2013, the population distribution grid map was obtained. Firstly, the resident population statistics were used to test the accuracy of the results of the population spatialization. Secondly, population distribution characteristics were further explored by analyzing the Province’s population distribution map (of 2013) as well as its land use, elevations, slopes and other factors. The results show that: ① In the past 20 years, the population has concentrated in Guiyang City and formed a concentrated area that is increasing year by year. ② The population of each county has concentrated in urban areas, with an increase in population density and concentration area. ③ 46.05% of the population of Guizhou Province is distributed in grassland areas, followed by areas with forests and cultivated land. The urban area is small, with a dense and concentrated population. ④ According to the altitude gradients, Guizhou Province can be divided into three steps. The population is sparse in the low-altitude areas in the East and the high-altitude areas in the West. And the central part of the mid-high altitudes takes up the largest area and has the largest population. ⑤ The majority of Guizhou's population concentrates in the area with slopes <15°. And the population distribution declines with the increase of slopes.

     

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