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Holocene vegetation changes in NW Iberia revealed by anthracological and palynological records from a colluvial soil

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Pertenece a: Digital.CSIC  

Descripción: Macroscopic charcoal, pollen and non-pollen palynomorphs were isolated from a colluvial soil located on a small hill in Campo Lameiro (NW Spain) in order to elucidate the vegetation history of the area and its relation to fire and human activities. The presence of macroscopic charcoal throughout the 2.10 m thick soil (42 samples) is evidence of frequent fires during the last c. 6300 years. The charcoal record was dominated by Quercus (probably Q. robur), Ericaceae (probably Arbutus unedo and Erica arborea) and Fabaceae (mainly Genista type). Abrupt changes in the charcoal assemblage are less explicit in the pollen sequence, probably as a result of pollen inflow from the downhill surroundings of the study site. Combined results indicated that the original oak woodland was gradually replaced by pyrophytic shrubs (Ericaceae and Fabaceae) as a result of fire recurrence. Non-pollen palynomorphs strongly suggested that vegetation was deliberately ignited by past human societies to facilitate grazing. No evidence of local agricultural practices was found. Episodes of accelerated shrubland expansion occurred c. 6000-5500 cal. BP, c. 4000-3500 cal. BP and c. 1700 cal. BP, the latter of which caused the definitive settlement of shrublands dominated by Ericaceae and Fabaceae which are nowadays widespread in NW Iberia.

Autor(es): Carrión Marco, Yolanda -  Kaal, Joeri -  López Sáez, José Antonio -  López -  Merino, Lourdes -  Martínez Cortizas, Antonio - 

Id.: 52692467

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveCharcoal analysis - 

Tipo de recurso: Artículo  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: openAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://dx.doi.org/10.1177/0959683609348849

Fecha de contribución: 28-mar-2014

Contacto:

Localización:
* Holocene 20(1): 53-66 (2010)
* 0959-6836
* 10.1177/0959683609348849


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