Department of Public Health Policy, School of Public Health, University of West Attica, 196 Alexandras Avenue, 115 21, Athens, Greece.
Bull Environ Contam Toxicol. 2022 Nov;109(5):783-787. doi: 10.1007/s00128-022-03604-5. Epub 2022 Sep 2.
A promising solution for the remediation of cadmium (Cd) contaminated soil involves the use of Cd hyperaccumulators to reduce levels of soil Cd. The suitability of various plant species to act as cadmium (Cd) hyperaccumulators was reviewed by considering bioconcentration factor (BCF), translocation factor (TF) and Cd concentration in shoots relative to soil parameters such as pH and organic matter content, and planting and growing parameters. High BCF and TF values (max 81 and 13.7 respectively) were observed in soils with low soil Cd concentration, soil organic matter (SOM) content (< 2%) and low soil pH, with biannual harvesting possible for some species. Certain species such as Youngia erythrocarpa and Gnaphalium affine were efficient as hyperaccumulators in soil with > 40% SOM content.
一种有前途的修复镉（Cd）污染土壤的方法是利用 Cd 超富集植物来降低土壤 Cd 含量。通过考虑生物富集系数（BCF）、转移系数（TF）以及地上部分 Cd 浓度与土壤参数（如 pH 值和有机质含量）和种植生长参数之间的关系，对各种植物物种作为 Cd 超富集植物的适宜性进行了评估。在土壤 Cd 浓度低、土壤有机质（SOM）含量低（<2%）和土壤 pH 值低的土壤中，观察到高的 BCF 和 TF 值（最大分别为 81 和 13.7），对于某些物种可能进行两年一次的收获。某些物种，如红景天和腺梗豨莶，在 SOM 含量>40%的土壤中是有效的超富集植物。
