基于夜间灯光数据的黄河流域经济发展空间特征与影响机制分析

曾冰, 谢琦

Spatial characteristics and impact mechanism of economic development indicated by night lighting data in the Yellow River Basin

Bing Zeng, Qi Xie

图3 黄河流域市域经济发展水平等级划分

Fig.3 Classification map of the level of economic development of the cities in the Yellow River Basin