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The synthetic analysis of several pollen records from sub-Mediterranean lowland Pre-Pyrenean regions evidences expansion of forests during the Early Holocene in Northeastern Iberia and the establishment of dense deciduous broadleaf forests during the Holocene Climate Optimum. Pollen records show the broadleaf deciduous forests resilience against cooling phases during the Mid-Holocene period, with slight regressions of oak woodlands and expansion of conifers or xerophytic taxa contemporary to some cooling episodes (i.e. 8.2 and 7.2 kyr cal. BP). Major vegetation changes influenced by climate change occurred in the transition to the Late Holocene, in terms of the start of a succession from broadleaf deciduous forests to evergreen sclerophyllous woodlands. The lack of evidence of previous occupation seems to support the Neolithisation of the NE Iberian Peninsula as a result of a process of migration of farming populations to uninhabited or sparsely inhabited territories. In that context, remarkable changes in vegetation were recorded from 7.3 kyr cal. BP onwards in the Lake Banyoles area, where the establishment of permanent farming settlements caused the deforestation of oak woodlands. In La Garrotxa region, short deforestation episodes affecting broadleaf deciduous forests, together with expansion of grasslands and presence of Cerealia-t were documented in the period 7.4–6.0 kyr cal. BP. Finally, in the coastal area, where less evidence of Early Neolithic occupations is recorded, evidence of Neolithic impact is reflected in the presence of Cerealia-t in 6.5–6.2 kyr cal. BP, but no strong human transformation of landscape was carried out until more recent chronologies.

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Digital.CSIC  

Autor(es)

Revelles, Jordi -  Burjachs, Francesc -  Palomo, Antoni -  Piqué, Raquel -  Iriarte, Eneko -  Pérez -  Obiol, R. -  Terradas -  Batlle, Xavier - 

Id.: 70954251

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveHolocene - 

Tipo de recurso: Artículo  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: closedAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://dx.doi.org/10.1016/j.quascirev.2017.08.025
[References] http://www.sciencedirect.com/science/article/pii/S0277379117302810
[References] Sí

Fecha de contribución: 25-abr-2018

Contacto:

Localización:
* Quaternary Science Reviews : https://doi.org/10.1016/j.quascirev.2017.08.025 (2017)
* 0277-3791
* 10.1016/j.quascirev.2017.08.025
* 1873-457X

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