Characteristics of Phytogeochemistry in Copper Mine Area of Hongtou Shan, Liaoning Province Analysis on characteristics of phytogeochemistry of Elsholtzia haichowensis in Daye Tonglushan copper mine Characteristics of Phytogeochemistry in Naomuhong Copper Mine Area at the Alasan of Nei Monggol The Phytocommunity and Phyto-geochemistry Characteristics of Pb and Zn in the Mining Area of Xitieshan Mountain in Qinghai Province and Their Relationship with the Pb and Zn Deposits