Analysis of metal element contents in soil sample of different altitude from lead-zinc tailing mine mount in Longnan City, Gansu ProvinceZhuoxin Yin, Yao Zheng, Zhengzhou Wang, Bin Yue and Guohua ChangE3S Web Conf., 293 (2021) 01015DOI: https://doi.org/10.1051/e3sconf/202129301015