Anales del Jardín Botánico de Madrid, Vol 59, No 1 (2001)

The evolution of montane vegetation in the eastern sector of the Ayllón massif (Central Mountain Range). Pollen analysis of a core from Pelagallinas peatbog


https://doi.org/10.3989/ajbm.2001.v59.i1.102

Fátima Franco Múgica
Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Spain

Mercedes García Antón
Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid, Spain

Javier Maldonado Ruiz
Departamento de Silvopascicultura (Botánica), Escuela Técnica Superior de Ingenieros de Montes, Universidad Politécnica de Madrid, Spain

Carlos Morla Juaristi
Departamento de Silvopascicultura (Botánica), Escuela Técnica Superior de Ingenieros de Montes, Universidad Politécnica de Madrid, Spain

Helios Sainz Olleros
Departamento de Biología (Botánica), Facultad de Ciencias, Universidad Autónoma de Madrid., Spain

Abstract


Pollen and charcoal analyses of a core from Pelagallinas peatbog, located in the Sierra de Alto Rey at the eastern sector of the Central Mountain Range (Guadalajara), show the environmental history of the montane vegetation during the last 4000 years. The results indícate the importance of pinewoods in the landscape of these mountains. These pine forests were replaced by heather communities contemporaneous with fires as indicated by the increase of particles of charcoal. Birch found refuge in peatbogs, though it nearly disappeared during the last millennium. The Pelagallinas' sequence shows a remarkable and constant presence oí Fagus throughout the core, providing the oldest date for the occurence of this taxon for the Central Mountain Range.

Keywords


pollen analysis; Betula; charcoal; Fagus; Holocene; Pinus; Central Mountain Range

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