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dc.contributor.author
Stewart, Carol
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Craig, Heather M.
dc.contributor.author
Gaw, Sally
dc.contributor.author
Wilson, Thomas
dc.contributor.author
Villarosa, Gustavo
dc.contributor.author
Outes, Ana Valeria
dc.contributor.author
Cronin, Shane
dc.contributor.author
Oze, Christopher
dc.date.available
2018-10-24T21:26:37Z
dc.date.issued
2016-11
dc.identifier.citation
Stewart, Carol; Craig, Heather M.; Gaw, Sally; Wilson, Thomas; Villarosa, Gustavo; et al.; Fate and agricultural consequences of leachable elements added to the environment from the 2011 Cordón Caulle tephra fall; Elsevier Science; Journal of Volcanology and Geothermal Research; 327; 11-2016; 554-570
dc.identifier.issn
0377-0273
dc.identifier.uri
http://hdl.handle.net/11336/63030
dc.description.abstract
The June 2011 eruption of Cordón Caulle volcano, Chile, dispersed tephra over ~ 350,000 km2, including productive agricultural land. This resulted in the death of nearly one million livestock. Two distinct environments were affected: a proximal temperate Andean setting, and the semi-arid Argentine steppe farther from the volcano. The purpose of this study was to better understand the fate and agricultural consequences of leachable elements added to the environment by this large silicic tephra fall. Tephra, soil and surface water samples across the depositional area were collected both immediately after the eruption (tephra and water) and nine months afterwards (tephra, soil and water). Tephra samples were analysed following a new hazard assessment protocol developed by the International Volcanic Health Hazard Network (IVHHN). Water-extractable element concentrations in freshly-collected tephra were very low to low compared to other eruptions, and showed no trends with distance from the volcano. Surface water analyses suggested short-term changes to water composition due to the release of elements from tephra. No effect on the fertility of soils underlying tephra was apparent after nine months. Water-extractable fluorine (F) in freshly-collected tephra ranged from 12 to 167 mg/kg, with a median value of 67 mg/kg. Based on parallels with the 11–12 October 1995 eruption of Ruapehu volcano, New Zealand, we conclude that F toxicity was a possible contributing factor to the large-scale livestock deaths as well as to chronic fluorosis widely reported in wild deer populations across the Cordón Caulle tephra depositional area. Finally, we recommend that effective response to widespread tephra fall over agricultural areas should include: (1) rapid, statistically representative field sampling of tephra, soils, surface water supplies and forage crops; (2) analysis using appropriate and reliable laboratory methods; (3) modelling both short and long-term impacts on the ecosystem, especially for elements that may generate chronic hazard; (4) timely dissemination of results to agricultural agencies; (5) longitudinal sampling and monitoring to adapt impact models; and (6) developing reliable animal fatality diagnoses through autopsies and chemical analysis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Agricultural Impacts
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Fluorosis
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Leachate Protocol
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Risk
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Silicic
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Volcanic Hazard
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Vulcanología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Fate and agricultural consequences of leachable elements added to the environment from the 2011 Cordón Caulle tephra fall
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-22T13:18:24Z
dc.journal.volume
327
dc.journal.pagination
554-570
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Stewart, Carol. Massey University; Nueva Zelanda
dc.description.fil
Fil: Craig, Heather M.. University Of Canterbury; Nueva Zelanda
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Fil: Gaw, Sally. University Of Canterbury; Nueva Zelanda
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Fil: Wilson, Thomas. University Of Canterbury; Nueva Zelanda
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Fil: Villarosa, Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales. Universidad Nacional del Comahue. Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales.; Argentina
dc.description.fil
Fil: Outes, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales. Universidad Nacional del Comahue. Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales.; Argentina
dc.description.fil
Fil: Cronin, Shane. The University of Auckland; Nueva Zelanda
dc.description.fil
Fil: Oze, Christopher. University Of Canterbury; Nueva Zelanda. Occidental College; Estados Unidos
dc.journal.title
Journal of Volcanology and Geothermal Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027316303420
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jvolgeores.2016.09.017
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