Landscape and climatic changes during the end of the Late Prehistory in the Amblés Valley (Ávila, central Spain), from 1200 to 400 cal BC |
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| Authors: | Jos A Lpez-Sez Antonio Blanco-Gonzlez Lourdes Lpez-Merino M Blanca Ruiz-Zapata Miriam Dorado-Valio Sebastin Prez-Díaz Ana Valdeolmillos Francesc Burjachs |
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| Institution: | José A. López-Sáez, Antonio Blanco-González, Lourdes López-Merino, M. Blanca Ruiz-Zapata, Miriam Dorado-Valiño, Sebastián Pérez-Díaz, Ana Valdeolmillos,Francesc Burjachs |
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| Abstract: | Correlations between ecological and cultural changes occurred during a short period between the end of Subboreal and the beginning of Subatlantic in the Amblés Valley (Ávila, central Spain) are analyzed, taking into account palaeopalynological and archaeological data. Plant dynamics from pollen analyses, both from archaeological sites and peat bogs, have been interpreted in relation to human settlements and the transformation of economic practices. These provided a comprehensive hypothesis on human/climate interactions at the beginning of the 1st millennium cal BC. There was an ecological crisis in the region that lasted for a century (ca. 850–760 cal BC). This was especially sharp due to both the geographical constraints of the area and its previous agrarian history. This event implied a sudden and abrupt climatic change from xeric and warm conditions (Subboreal) to more humid and cooler ones (Subatlantic). Environmental stress derived from climatic crisis could be an important factor in the explanation of the historical process, whose main consequences were both the origin of the Iron Age peasant villages and the end of the ‘dehesa’ type landscape. |
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