基于NPP/VIIRS灯光数据的贵州省GDP空间化模型研究

Research on the Spatial Model of Guizhou Province GDP Based on NPP/VIIRS Light Data

  • 摘要: 基于2019年贵州地区88个区县社会经济及地理空间等数据, 构建城市灯光-社会经济发展指数, 借助城市灯光、平均灯光强度及GDP空间化等模型分析其地级市及区县的经济发展格局。结果表明: ①在地市层面, GDP1的产值与耕地相关性系数较高, GDP2、GDP#、GDP3的产值能够准确地反映出经济的整体分布情况。②在区县层面, 夜间灯光与GDP数据的拟合效果更好, 相对误差小于13.4%, 表明区县级的数据空间化的精确度更好。结合现状提出了规划、建设及财政等方面建议。

     

    Abstract: Based on the socio-economic and geospatial data of 88 districts and counties in Guizhou in 2019, the urban lighting-socio-economic development index is constructed, and the economic development pattern of prefecture-level cities and districts and counties is analyzed with the help of urban light, average light intensity and GDP spatial model. The results show that: ① at the prefecture-city level, the correlation coefficient between output value and cultivated land is relatively high, and the output values of GDP2、GDP#、GDP3 can well reflect the overall economic distribution; ② at the district and county level, the fitting effect of night light and GDP data is better, and the relative error is less than 13.4%, indicating that the spatial accuracy of the district and county data is better. Some suggestions on planning, construction and finance are put forward.

     

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