Spatial-temporal variation characteristics of air quality and its influencing factors of the Beijing-Tianjin-Hebei urban agglomeration based on ward hierarchical clustering
YAO Xiangshu, ZHAO Wenji, YANG Zhenyu, CAO Zejun, WANG Dongchuan
YAO Xiangshu,ZHAO Wenji,YANG Zhenyu,CAO Zejun,WANG Dongchuan. Spatial-temporal variation characteristics of air quality and its influencing factors of the Beijing-Tianjin-Hebei urban agglomeration based on ward hierarchical clustering[J]. Ecology and Environmental Sciences, 2021, 30(2): 340-350.