Reconstruyendo la historia de los bosques pirenaicos

  1. Jesús Julio Camarero 1
  2. Sandra Garcés-Pastor 2
  3. Emilia Gutiérrez 2
  4. Valentí Rull 3
  5. Teresa Vegas-Vilarrúbia 2
  6. Núria Cañellas-Boltà 3
  7. Gabriel Sangüesa Barreda 1
  8. Mari C. Trapote 2
  9. Albert Clavaguera 2
  10. Miguel Ángel Calero 1
  11. Juan Diego Galván Candela 4
  12. Raúl Sánchez Salguero 5
  13. Santiago Giralt 3
  14. Blas Valero-Garcés 1
  1. 1 Instituto Pirenaico de Ecología (IPE-CSIC)
  2. 2 Universitat de Barcelona
    info

    Universitat de Barcelona

    Barcelona, España

    ROR https://ror.org/021018s57

  3. 3 Instituto de Ciencias de la Tierra “Jaume Almera” (ICTJA-CSIC)
  4. 4 Swiss Federal Research Institute for Forest Snow and Landscape
  5. 5 Universidad Pablo de Olavide
    info

    Universidad Pablo de Olavide

    Sevilla, España

    ROR https://ror.org/02z749649

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Book:
Proyectos de investigación en parques nacionales: 2011-2014

Publisher: Organismo Autónomo de Parques Nacionales ; Ministerio de Medio Ambiente y Medio Rural y Marino

ISBN: 978-84-8014-898-6

Year of publication: 2016

Pages: 141-156

Type: Book chapter

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Abstract

Reconstructing the history of forests should help to plan their future management under climatic anduse scenarios different from those observed in the past. Here we show findings resulting from that ideaapplied to the Pyrenean forests and combining paleoecology and dendroecology. The use of paleoecology allowed quantifying the local and regional climate and forest variability during the last 700 years(including the Little Ice Age, LIA) by analyzing lake sediments, diatoms and pollen from cores takenin Sant Maurici and Bassa Nera, two sites located at the Aigüestortes i Estany de Sant Maurici NationalPark , Central Pyrenees. The use of dendrochronology allowed to reconstruct the age structures of Pyrenean and nearby Mountain pine (Pinus uncinata) and Silver fir (Abies alba) forests from the northeasternIberian Peninsula, and to project their radial growth and that of Scots pine (Pinus sylvestris) forests asa function of 21st-century climatic scenarios. In terms of vegetation and landscape patterns, the mostimportant change was observed in the early LIA when there was a descent of vegetation stages in BassaNera. The age structures of Mountain pine and Silver fir showed changes which were not coupled totemperature fluctuations. The Mountain pine reached maximum ages of 800-1000 years, whilst the Silver fir reached a maximum lifespan of ca. 400 years. The Silver fir age structure indicated an intense regeneration. Growth models suggested that climate warming could enhance growth of Mountain pineforests constrained by low temperatures, whereas it could reduce growth of Silver fir forests limited bylate-summer water deficit. However, any simulation of forest dynamics should consider the local expression of climate and use changes as major drivers of the history of Pyrenean forests.

Data source: Dialnet