TY - Front. Environ. Sci. Eng. A1 - Jingling LIU,Tao YANG,Qiuying CHEN,Feng LIU,Binbin WANG T1 - Distribution and potential ecological risk of heavy metals in the typical eco-units of Haihe River Basin Y1 - 2016-02-01 JF - Frontiers of Environmental Science & Engineering JO - Front. Environ. Sci. Eng. SP - 103 EP - 113 VL - IS - UR - https://journal.hep.com.cn/fese N1 - 10.1007/s11783-014-0686-5 ER -