Morais Ultramafic Complex: A Survey towards Nickel Phytomining

Author:

Alves Ana R. A.,Silva Eduardo F.ORCID,Novo Luís A. B.ORCID

Abstract

Ultramafic areas are critical for nickel (Ni) phytomining due to the high concentration of this element in their soils and the number of hyperaccumulators they harbor. The aim of the present study was to evaluate the potential of the Morais massif, an ultramafic area in Portugal, for phytomining using the hyperaccumulator species Alyssum serpyllifolium subsp. lusitanicum. Soil samples and A. serpyllifolium specimens were collected in four locations of the Morais massif. After determination of Ni concentrations in the samples, the results show that soil pseudo-total Ni concentrations in sites number 1 and 2 are significantly higher than in the soil samples collected in the other two locations, with 1918 and 2092 mg kg−1, respectively. Nickel accumulation is significantly greater in the aerial parts of plants collected at sites 1, 2, and 4, presenting Ni harvestable amount means of 88.36, 93.80, and 95.56 mg per plant, respectively. These results suggest that the sites with highest potential for phytomining are sites 1, 2, and 4. A nickel agromining system in these locations could represent an additional source of income to local farmers, since ultramafic soils have low productivity for agriculture and crop production.

Funder

European Regional Development Fund

Publisher

MDPI AG

Subject

Management, Monitoring, Policy and Law,Nature and Landscape Conservation

Reference41 articles.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Phytomining: a sustainable approach for recovery and extraction of valuable metals;Phytorestoration of Abandoned Mining and Oil Drilling Sites;2021

2. Role of bacteria and mycorrhizal fungi in phytomining: status and future perspectives;Microbe Mediated Remediation of Environmental Contaminants;2021

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