Facultad de Ingeniería, Universidad de Playa Ancha, Av. Carvallo 270, Valparaíso 2490000, Chile.
Herbario VALPL, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso 2490000, Chile.
ScientificWorldJournal. 2021 Feb 23;2021:2974786. doi: 10.1155/2021/2974786. eCollection 2021.
A phytoremediation process for lead (Pb) under laboratory conditions on contaminated soil from the Puchuncaví commune, Valparaíso Province, Chile, was carried out. It analyzed the phytoremediation potential of (Lag.) M.A. Alonso and M.B. Crespo. The plants were propagated beforehand and extracted from the El Yali wetland, a RAMSAR 878 site in Valparaíso. Soil fertility and heavy metal concentration analyses of composite samples were conducted, complying with established protocols and standard methodology for chemical and metal analyses. These analyses were conducted in the Soil Analysis Laboratory of the Pontificia Universidad Católica de Valparaíso. The aim was to analyse not only the tissue of plants from both areas but also the soil to identify the changes in different conditions in which the plants live. To determine the type of inferential analysis to be performed, a normality test was applied; however, it was deemed unsuitable, and therefore, the contrasts were developed using nonparametric tests, particularly Wilcoxon. R project software was used in the tests, especially the RCommander package, together with the Jamovi free-license statistical spreadsheet application. The analyses results of the soil samples indicated high concentrations of heavy metals, predominantly Pb at a concentration of 77.97 mg/kg, acidic soil indicated by pH between 5.77 and 6.38, low levels of electrical conductivity, and the presence of organic matter. A phytoremediation efficiency of 99% on soil samples was achieved. Preliminary results were compared against international regulations on the concentration of metals in soil. The histological sections showed that individual plants probably adapted to their environmental conditions.
在智利瓦尔帕莱索省普库努奇维市受污染土壤的实验室条件下，进行了一种修复铅（Pb）的植物修复过程。分析了（Lag.）M.A. Alonso 和 M.B. Crespo 的植物修复潜力。这些植物事先在瓦尔帕莱索的拉莫斯·阿里亚斯 878 号湿地（El Yali 湿地）中进行了繁殖和提取。对复合样品进行了土壤肥力和重金属浓度分析，符合既定的化学和金属分析协议和标准方法。这些分析是在智利天主教大学瓦尔帕莱索分校的土壤分析实验室进行的。目的是分析不仅来自两个地区的植物组织，而且还分析土壤，以确定植物在不同条件下的变化。为了确定要执行的推断分析类型，进行了正态性检验；然而，它被认为不合适，因此，使用非参数检验，特别是 Wilcoxon 开发了对比。在测试中使用了 R 项目软件，特别是 RCommander 包，以及免费许可证的 Jamovi 统计电子表格应用程序。土壤样品的分析结果表明重金属浓度很高，主要是 Pb，浓度为 77.97 mg/kg，土壤呈酸性，pH 值在 5.77 至 6.38 之间，电导率低，存在有机物。对土壤样品的植物修复效率达到了 99%。初步结果与国际土壤中金属浓度的规定进行了比较。组织切片表明，个别植物可能适应了其环境条件。
