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Memorias de investigación
Artículos en revistas:
Volcanic mercury in Pinus canariensis
Año:2013
Áreas de investigación
  • Medio natural
Datos
Descripción
Mercury (Hg) is a toxic element that is emitted to the atmosphere by both human activities and natural processes. Volcanic emissions are considered a natural source of mercury in the environment. In some cases, tree ring records taken close to volcanoes and their relation to volcanic activity over time are contradictory. In 1949, the Hoyo Negro volcano (La Palma-Canary Islands) produced significant pyroclastic flows that damaged the nearby stand of Pinus canariensis. Recently, 60 years after the eruption, we assessed mercury concentrations in the stem of a pine which survived volcano formation, located at a distance of 50 m from the crater. We show that Hg content in a wound caused by pyroclastic impacts (22.3 ?g kg?1) is an order of magnitude higher than the Hg concentrations measured in the xylem before and after the eruption (2.3 ?g kg?1). Thus, mercury emissions originating from the eruption remained only as a mark?in pyroclastic wounds?and can be considered a sporadic and very high mercury input that did not affect the overall Hg input in the xylem. In addition, mercury contents recorded in the phloem (9.5 ?g kg?1) and bark (6.0 ?g kg?1) suggest that mercury shifts towards non-living tissues of the pine, an aspect that can be related to detoxification in volcanism-adapted species.
Internacional
Si
JCR del ISI
Si
Título de la revista
Naturwissenschaften
ISSN
0028-1042
Factor de impacto JCR
2,144
Información de impacto
Volumen
100
DOI
10.1007/s00114-013-1070-1
Número de revista
8
Desde la página
739
Hasta la página
747
Mes
AGOSTO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: José Antonio Rodríguez Martin (INIA)
  • Autor: Nikolaos Nanos (UPM)
  • Autor: Jose Carlos Miranda (UPM)
  • Autor: Gregoria Carbonel (INIA)
  • Autor: Luis Alfonso Gil Sanchez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Genética y Fisiología Forestal
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