文献类型：期刊文献

英文题名：Accumulation of potentially toxic trace elements (PTEs) by native plant species growing in a typical gold mining area located in the northeast of Qinghai-Tibet Plateau

作者：Wang, Lei[1,2,3];Xie, Xiaorong[4];Li, Qifeng[5];Yu, Zhifeng[5];Hu, Guangde[1,2,3];Wang, XiXi[1,2,3];Liu, Jinrong[1,2,3]

第一作者：Wang, Lei

通信作者：Liu, JR[1];Liu, JR[2];Liu, JR[3]

机构：[1]Lanzhou Univ, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China;[2]Lanzhou Univ, Gansu Tech Innovat Ctr Western China Grassland In, Engn Res Ctr Grassland Ind, Minist Educ, Lanzhou 730000, Gansu, Peoples R China;[3]Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Gansu, Peoples R China;[4]Gansu Univ Chinese Med, Basic Med Coll, Lanzhou 730000, Gansu, Peoples R China;[5]Third Inst Geol & Mineral Explorat, Gansu Prov Bur Geol & Mineral Resources, Lanzhou 730030, Gansu, Peoples R China

第一机构：Lanzhou Univ, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China

通信机构：[1]corresponding author), Lanzhou Univ, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China;[2]corresponding author), Lanzhou Univ, Gansu Tech Innovat Ctr Western China Grassland In, Engn Res Ctr Grassland Ind, Minist Educ, Lanzhou 730000, Gansu, Peoples R China;[3]corresponding author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Gansu, Peoples R China.

年份：2022

卷号：29

期号：5

起止页码：6990

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：;EI(收录号：20242616374707);Scopus(收录号：2-s2.0-85113939031);WOS:【SCI-EXPANDED(收录号:WOS:000691662400003)】；

基金：This work was financially supported by the Key R&D Program of Gansu Province, China (17YF1NA065); the Gansu Special Project for Guiding Innovation and Development of Science and Technology, China (2018ZX-09).

语种：英文

外文关键词：Gold mining area; Native plants; Bioconcentration; Translocation factor; Phytoextraction; Phytostabilisation

摘要：Though gold mines provide significant economic benefits to local governments, mining causes soil pollution by potentially toxic trace elements (PTEs) in mining areas, especially in the Qinghai-Tibet Plateau. Screening of native plant species from mining areas is now an effective, inexpensive, and eco-friendly method for the remediation of PTEs in situ. In the present study, we conducted experiments to assess the accumulation of As, Cd, Pb, and Zn in 12 native plant species growing on a typical gold mining area in the Qinghai-Tibet Plateau. Our results showed that rhizosphere soils have high soil organic matter content, high levels of As, and moderate levels of Cd. Geranium pylzowianum accumulated relatively higher As in its shoots and exhibited translocation factor (TF) higher than 1 for As (4.65), Cd (1.87), and Pb (1.36). Potentilla saundersiana had bioconcentration factor of shoot (BCF-S) higher than 1 for Cd (4.52) and Pb (1.70), whereas its TF was higher than 1 for As, Cd, Pb, and Zn. These plant species exhibit strong tolerance to these PTEs. Furthermore, Elymus nutans accumulated low levels of As, Cd, Pb, and Zn in their shoots and exhibited TF values lower than 1 for the four PTEs. Therefore, G. pylzowianum is a promising candidate for the in situ phytoextraction of As, and P. saundersiana can be used as an effective plant for Cd and Pb phytoextraction. E. nutans is better suited for the phytostabilisation of multiple PTEs. This work is of significant importance for screening native plant species that can provide a reference for phytoremediation of PTE-contaminated soils in this area or other place with similar climate, and has a good potential for developing PTE phytoremediation strategies at mining sites.