Nonlinear effects and driving mechanism of multidimensional urbanization on PM2.5 concentrations in the Yangtze River Delta
GUO Xiangyang, MU Xueqing, DING Zhengshan, QIN Dongli
Acta Geographica Sinica . 2021, (5): 1274 -1293 .  DOI: 10.11821/dlxb202105017