The Experts below are selected from a list of 8127 Experts worldwide ranked by ideXlab platform
Hector M Conesa - One of the best experts on this subject based on the ideXlab platform.
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Edaphic Factors determining the colonization of semiarid mine tailings by a ruderal shrub and two tree plant species implications for phytomanagement
Chemosphere, 2020Co-Authors: Yolanda Risueno, Cesar Petri, Hector M ConesaAbstract:Abstract 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.
Yolanda Risueno - One of the best experts on this subject based on the ideXlab platform.
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Edaphic Factors determining the colonization of semiarid mine tailings by a ruderal shrub and two tree plant species implications for phytomanagement
Chemosphere, 2020Co-Authors: Yolanda Risueno, Cesar Petri, Hector M ConesaAbstract:Abstract 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.
Nadia C S Mykytczuk - One of the best experts on this subject based on the ideXlab platform.
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Edaphic Factors influencing vegetation colonization and encroachment on arsenical gold mine tailings near sudbury ontario
Environmental Pollution, 2020Co-Authors: Kimber E Munford, Shaun A Watmough, Maxime Rivest, Alexandre J Poulain, Nathan Basiliko, Nadia C S MykytczukAbstract:Abstract Mine tailings are found worldwide and can have significant impacts on ecosystem and human health. In this study, natural vegetation patterns on arsenical (As) gold (Au) mine tailings located in Sudbury, Ontario were assessed using transects located at the edge of the tailings and on the tailings. Vegetation communities were significantly different between the edge and open tailings areas of the site. Arsenic concentrations in both areas were extremely variable (from 285-17,567 mg/kg) but were not significantly correlated with vegetation diversity at the site. Nutrients (carbon (C), phosphorus (P)) and organic matter concentrations were associated with higher diversity and with the presence of climax vegetation on the tailings, but there were no significant relationships between tailings chemistry and vegetation indices on the edge. Encroachment onto the tailings from the edge occurred in conventional succession patterns, with a clear gradient from grasses (Agrostis gigantea) to trees such as Picea glauca. On the tailings, a nucleation pattern was visible, distinct from conventional succession. Trees and shrubs such as Betula papyrifera and Diervilla lonicera were associated with higher diversity and higher nutrient concentrations in the underlying tailings, whereas grasses such as A. gigantea were not. We concluded that at all areas of the site, vegetation - particularly trees - was facilitating amelioration of the underlying tailings. Despite high concentrations of As, nutrients appeared to have a greater influence than metals on vegetation diversity.
Gladstone Alves Da Silva - One of the best experts on this subject based on the ideXlab platform.
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Edaphic Factors influence the distribution of arbuscular mycorrhizal fungi along an altitudinal gradient of a tropical mountain
Microbial Ecology, 2019Co-Authors: Larissa Vieira, Danielle Karla Alves Da Silva, Mayara Alice Correia De Melo, Indra Elena Costa Escobar, Fritz Oehl, Gladstone Alves Da SilvaAbstract:Changes in relief in montane areas, with increasing altitude, provide different biotic and abiotic conditions, acting on the species of arbuscular mycorrhizal fungi (AMF). The objective of this work was to determine the influence of altitude, Edaphic Factors, and vegetation on the AMF species in a mountainous area. The list of AMF species was obtained from morphological identification of the spores, with 72 species recovered from field samples and trap cultures. Lower levels of Shannon's diversity occurred only at lower altitude; however, there was no difference in AMF richness. The structure of the AMF assembly between the two highest altitudes was similar and differed in relation to the lower altitude. There was variation in the distribution of AMF species, which was related to soil texture and chemical Factors along the altitude gradient. Some species, genera, and families were indicative of a certain altitude, showing the preference of fungi for certain environmental conditions, which may aid in decisions to conserve montane ecosystems.
Cesar Petri - One of the best experts on this subject based on the ideXlab platform.
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Edaphic Factors determining the colonization of semiarid mine tailings by a ruderal shrub and two tree plant species implications for phytomanagement
Chemosphere, 2020Co-Authors: Yolanda Risueno, Cesar Petri, Hector M ConesaAbstract:Abstract 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.
