Current status and challenges in developing nickel phytomining : an agronomic perspective
| Autor: | Rufus L. Chaney, Jean Louis Morel, Philip Nti Nkrumah, Guillaume Echevarria, Antony van der Ent, Peter D. Erskine, Alan J. M. Baker |
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| Přispěvatelé: | Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, University of Southern Queensland (USQ), School of BioSciences [Melbourne], Faculty of Science [Melbourne], University of Melbourne-University of Melbourne, USDA-ARS : Agricultural Research Service, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), ANR (ANR-10-LABX-21, LABEX RESSOURCES21) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Annual Ni yield
[SDV]Life Sciences [q-bio] Soil Science Biomass Plant Science ultramafique 010501 environmental sciences 01 natural sciences complex mixtures Agronomy Biomass production Economic Ni phytomining Ni hyperaccumulator plants Ultramafic soils nickel biodisponibilité Soil pH fertilisation organique Organic matter Hyperaccumulator métal lourd Water content 0105 earth and related environmental sciences 2. Zero hunger chemistry.chemical_classification polluant food and beverages 04 agricultural and veterinary sciences 15. Life on land 6. Clean water bioremédiation production de biomasse Soil conditioner Phytoremediation chemistry 13. Climate action Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science plante hyperaccumulatrice de métaux |
| Zdroj: | Plant and Soil 1 (406), 55-69. (2016) Plant and Soil 406 (2016) 1-2 Plant and Soil Plant and Soil, Springer Verlag, 2016, 406 (1), ⟨10.1007/s11104-016-2859-4⟩ Plant and Soil, 406(1-2), 55-69 |
| ISSN: | 0032-079X 1573-5036 |
| DOI: | 10.1007/s11104-016-2859-4 |
| Popis: | Background: Nickel (Ni) phytomining operations cultivate hyperaccumulator plants (‘metal crops’) on Ni-rich (ultramafic) soils, followed by harvesting and incineration of the biomass to produce a high-grade ‘bio-ore’ from which Ni metal or pure Ni salts are recovered. Scope: This review examines the current status, progress and challenges in the development of Ni phytomining agronomy since the first field trial over two decades ago. To date, the agronomy of less than 10 species has been tested, while most research focussed on Alyssum murale and A. corsicum. Nickel phytomining trials have so far been undertaken in Albania, Canada, France, Italy, New Zealand, Spain and USA using ultramafic or Ni-contaminated soils with 0.05–1 % total Ni. Conclusions: N, P and K fertilisation significantly increases the biomass of Ni hyperaccumulator plants, and causes negligible dilution in shoot Ni concentration. Organic matter additions have pronounced positive effects on the biomass of Ni hyperaccumulator plants, but may reduce shoot Ni concentration. Soil pH adjustments, S additions, N fertilisation, and bacterial inoculation generally increase Ni phytoavailability, and consequently, Ni yield in ‘metal crops’. Calcium soil amendments are necessary because substantial amounts of Ca are removed through the harvesting of ‘bio-ore’. Organic amendments generally improve the physical properties of ultramafic soil, and soil moisture has a pronounced positive effect on Ni yield. Repeated ‘metal crop’ harvesting depletes soil phytoavailable Ni, but also promotes transfer of non-labile soil Ni to phytoavailable forms. Traditional chemical soil extractants used to estimate phytoavailability of trace elements are of limited use to predict Ni phytoavailability to ‘metal crop’ species and hence Ni uptake. |
| Databáze: | OpenAIRE |
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