Phytomanagement techniques using native species allow the recovery of contaminated soils at low cost and circumvent the ecological risks associated with the use of non-native species. In this context, a paradigmatic brownfield megasite highly contaminated by As and Pb was sampled in order to analyze soil–plant interactions and identify plant species with phytoremediation potential. A survey was first carried out in a 20-ha area to obtain an inventory of species growing spontaneously throughout the site. We then performed another survey in the most polluted sub-area (1 ha) within the site. Pseudototal concentrations of contaminants in the soil, aerial parts of the plants, and roots were measured by ICP-MS. A detailed habitat classification was done, and a specific index of coverage was applied by means of a 1-year quadrat study in various sampling stations. Results converged in the selection of six herbaceous species (Dysphania botrys, Lotus corniculatus, Lotus hispidus, Plantago lanceolata, Trifolium repens, Medicago lupulina). All of these plants are fast-growing, thereby making them suitable for use in phytostabilization strategies. Furthermore, they are all easy to grow and propagate and are generally self-sustaining. All six plants showed accumulation factors below 1, thus revealing them as pseudomethallophytes and excluders. However, L. hispidus and M. lupulina showed translocation capacity and are considered worthy of further study.

使用本地物种的植物管理技术允许以低成本恢复受污染的土壤，并规避与使用非本地物种相关的生态风险。在这种情况下，对一个被 As 和 Pb 高度污染的典型棕地巨型场地进行采样，以分析土壤与植物的相互作用并确定具有植物修复潜力的植物物种。首先在 20 公顷的区域进行了一项调查，以获取整个场地自发生长的物种清单。然后，我们在场地内污染最严重的分区（1 公顷）进行了另一次调查。通过 ICP-MS 测量土壤、植物地上部分和根中污染物的伪总浓度。进行了详细的栖息地分类，并且通过在各个采样站进行的为期一年的样方研究应用了特定的覆盖指数。结果在六种草本植物的选择上趋于一致（Dysphania botrys、Lotuscorniculatus、Lotus hispidus、Plantago lanceolata、Trifolium repens、Medicago lupulina )。所有这些植物都是快速生长的，从而使它们适用于植物稳定策略。此外，它们都很容易生长和繁殖，并且通常可以自我维持。所有六株植物的积累因子均低于 1，因此表明它们是假金属植物和排除者。然而，L. hispidus和M. lupulina表现出易位能力，被认为值得进一步研究。