Dynamic evaluation method of urban green growth level in Anhui province: a comprehensive analysis of 16 cities’ panel data from 2013-2017Junqi Zhu, Li Yang, Haotian Zhen, Shanshan Li, Jichao Geng and Getnet EngedaE3S Web Conf., 269 (2021) 01009DOI: https://doi.org/10.1051/e3sconf/202126901009