Edaphic factors determining the colonization of semiarid mine tailings by a ruderal shrub and two tree plant species: Implications for phytomanagement
| Autor: | Yolanda Risueño, Cesar Petri, Héctor M. Conesa |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Zygophyllum Health Toxicology and Mutagenesis 0208 environmental biotechnology ved/biology.organism_classification_rank.species Biodiversity 02 engineering and technology 010501 environmental sciences Tetraclinis 01 natural sciences Shrub Trees Soil Metals Heavy Soil Pollutants Environmental Chemistry Ruderal species 0105 earth and related environmental sciences Rhizosphere Bacteria biology Ecology ved/biology Public Health Environmental and Occupational Health Edaphic General Medicine General Chemistry Pinus biology.organism_classification Pollution Tailings 020801 environmental engineering Zygophyllum fabago Biodegradation Environmental Metals Spain Environmental science |
| Zdroj: | Chemosphere. 259:127425 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2020.127425 |
| Popis: | Phytomanagement has been considered a feasible technique to decrease the environmental risks associated to mine tailings and its implementation relies on a suitable plant species selection. The goal of this study was to identify the edaphic factors, including microbiology, affecting the establishment of plant species with contrasting growth patterns during the phytomanagement of mine tailings. For this purpose, a comprehensive rhizosphere characterization was performed in an early ruderal colonizer, Zygophyllum fabago and two late successional tree species, Pinus halepensis and Tetraclinis articulata, growing at a mine tailings pile in southeast Spain. The neutral pH of the tailings determined low 0.01 M CaCl2 metal extractable concentrations (e.g. 10% abundance). The contrasting mycorrhizal behaviour of both tree species (ectomycorrhizal for P. halepensis and endomycorrhizal for T. articulata) could explain the differences found between their fungal rhizospheric composition. In terms of phytomanagement, the selective plant species colonization following specific soil patches at mine tailings would increase their biodiversity and resilience against environmental stressors. |
| Databáze: | OpenAIRE |
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