title: Comparative of Quercus spp. and Salix spp. for phytoremediation of Pb/Zn mine tailings.
abstract: A pot experiment was conducted to evaluate the feasibility of using tree seedlings for the phytoremediation of lead/zinc (Pb/Zn) mine tailings. Seedlings of three Quercus spp. (Q. shumardii, Q. phellos, and Q. virginiana) and rooted cuttings of two Salix spp. (S. matsudana and S. integra) were transplanted into pots containing 50 and 100 % Pb/Zn mine tailings to evaluate their tolerance of heavy metals. The five species showed different tolerance levels to the Pb/Zn tailings treatments. Q. virginiana was highly tolerant to heavy metals and grew normally in the Pb/Zn tailings. The root systems showed marked differences between the Quercus spp. and Salix spp., indicating that different mechanisms operated to confer tolerance of heavy metals. The maximum efficiency of photosystem II photochemistry value of the five species showed no differences among the treatments, except for Q. shumardii. All species showed low metal translocation factors (TFs). However, S. integra had significantly higher TF values for Zn (1.42-2.18) and cadmium (1.03-1.45) than did the other species. In this respect, Q. virginiana showed the highest tolerance and a low TF, implying that it is a candidate for phytostabilization of mine tailings in southern China. S. integra may be useful for phytoextraction of tailings in temperate regions.
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.|Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Shi
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.
authors.forename: Shufeng
authors.initials: S
authors.lastname: Wang
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.
authors.forename: Haijing
authors.initials: H
authors.lastname: Sun
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.
authors.forename: Yitai
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.|Forestry College of Inner Mongolia Agricultural University, Huhhot, 010019, China.
authors.forename: Dongxue
authors.initials: D
authors.lastname: Wang
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.
authors.forename: Hongwei
authors.initials: H
authors.lastname: Pan
authors.affiliation: Research Institute of Subtropical Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Chinese Academy of Forestry, Hangzhou, 311400, China.
authors.forename: Yazhu
authors.initials: Y
authors.lastname: Zou
authors.affiliation: Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Liu
authors.affiliation: Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
authors.forename: Linyu
authors.initials: L
authors.lastname: Zheng
authors.affiliation: Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
authors.forename: Xiulian
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China. jiangzp@caf.ac.cn.
authors.forename: Zeping
authors.initials: Z
authors.lastname: Jiang
mesh_terms: D007854:Lead / Q000378:metabolism / Q000494:pharmacology*; D008906:Mining; D018517:Plant Roots / Q000187:drug effects / Q000378:metabolism; D029963:Quercus / Q000187:drug effects / Q000378:metabolism*; D032108:Salix / Q000187:drug effects / Q000378:metabolism*; D015032:Zinc / Q000378:metabolism / Q000494:pharmacology*
chemical_list: D007854:Lead; D015032:Zinc
keywords: Mine tailing; Phytoremediation; Quercus spp.; Root; Salix spp.; Tolerance