Dendroremediation Potential of Six Quercus Species to Polluted Soil in Historic Copper Mining Sites

Green remediation of severely contaminated soils around mining sites can be achieved using suitable woody plants such as Quercus species, but their phytoremediation potential has not been well evaluated yet. Six which were popular in ecological restoration and landscape application east China, selected for metal polluted soil a pot experiment that lasted 150 d. The results suggested species exhibited high tolerance to multi-metal contamination Cu (9839 mg·kg−1), Cd (8.5 Zn (562 mg·kg−1) with index (TI) ranging from 0.52 1.21. Three (Q. pagoda, Q. acutissima, nuttallii) showed relatively higher TIs 1.08, 1.09, 1.21, respectively. Above-ground tissues accounted most the total biomass T1 (mixture clean soil, 50%) T2 (100% soil) treatments species. contents plant order root > leaf stem, whereas stem root, divergent mobility within All capacity phytoextraction translocation factor (TF) over 1 Cu/Cd phytostabilization TFs lower than 1. analytic hierarchy process-entropy weight model indicated virginiana acutissima two excellent evident Cu, Cd, co-contaminated soil. Taken together, great by historic sites. Application is green option low-maintenance cost prospective economic benefit phytomanagement