Vegetation, fire, climate and human disturbance history in the southwestern Mediterranean area during the late Holocene

Gonzalo Jiménez-Moreno, Antonio García-Alix, María Dolores Hernández-Corbalán, Scott R Anderson, Antonio Delgado-Huertas

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Detailed pollen, charcoal, isotope and magnetic susceptibility data from an alpine lake sediment core from Sierra Nevada, southern Spain record changes in vegetation, fire history and lake sedimentation since ca. 4100. cal. yr BP. The proxies studied record an arid period from ca. 3800 to 3100. cal. yr BP characterized by more xerophytic vegetation and lower lake levels. A humid period is recorded between ca. 3100 and 1850. cal. yr BP, which occurred in two steps: (1) an increase in evergreen Quercus between 3100 and 2500. cal. yr BP, indicating milder conditions than previously and (2) an increase in deciduous Quercus and higher lake levels, between ca. 2500 and 1850. cal. yr BP, indicating a further increase in humidity and reduction in seasonal contrast. Humid maxima occurred during the Roman Humid Period, previously identified in other studies in the Mediterranean region. Intensified fire activity at this time could be related to an increase in fuel load and/or in human disturbance. An arid period subsequently occurred between 1850 and 650. cal. yr BP, though a decrease in Quercus and an increase in xerophytes. The alternation of persistent North Atlantic Oscillation modes probably played an important role in controlling these humid-arid cycles.

Original languageEnglish (US)
Pages (from-to)110-122
Number of pages13
JournalQuaternary Research
Volume79
Issue number2
DOIs
StatePublished - Mar 2013

Fingerprint

lake level
Holocene
disturbance
fire history
vegetation
climate
North Atlantic Oscillation
history
magnetic susceptibility
charcoal
sediment core
lacustrine deposit
humidity
pollen
sedimentation
isotope
lake
Mediterranean Area
History
Late Holocene

Keywords

  • Climate
  • Fire history
  • Late Holocene
  • Roman Humid Period
  • Sierra Nevada
  • Southern Spain

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Earth and Planetary Sciences(all)
  • Arts and Humanities (miscellaneous)

Cite this

Vegetation, fire, climate and human disturbance history in the southwestern Mediterranean area during the late Holocene. / Jiménez-Moreno, Gonzalo; García-Alix, Antonio; Hernández-Corbalán, María Dolores; Anderson, Scott R; Delgado-Huertas, Antonio.

In: Quaternary Research, Vol. 79, No. 2, 03.2013, p. 110-122.

Research output: Contribution to journalArticle

Jiménez-Moreno, Gonzalo ; García-Alix, Antonio ; Hernández-Corbalán, María Dolores ; Anderson, Scott R ; Delgado-Huertas, Antonio. / Vegetation, fire, climate and human disturbance history in the southwestern Mediterranean area during the late Holocene. In: Quaternary Research. 2013 ; Vol. 79, No. 2. pp. 110-122.
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