Holocene-scale fire dynamics of central European temperate spruce-beech forests - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Quaternary Science Reviews Année : 2018

Holocene-scale fire dynamics of central European temperate spruce-beech forests

Résumé

This study investigated the long-term role and drivers offire in the central European temperate spruce-beech forests from Prasilske jezero, Czech Republic. The results illustrate the complex relationship be-tween broad-scale climate, vegetation composition, and local human activities onfire throughout theHolocene. Biomass burning was the highest (average 3fires/1000 years) and most severe during the earlyHolocene whenfire resistant taxa (Pinus,CorylusandBetula) dominated. Using a Generalized AdditiveModel to assess the response of dominant canopy taxa to changes in biomass burning andfire severity,response curves demonstrate a positive relationship (p<0.01) betweenfire resistant taxa and increasesin biomass burning. Norway spruce (Picea abies) established ~10,000 cal yr BP and expanded during peakbiomass burning. Response curves show a slight negative relationship withPiceaand increasing biomassburning, and a positive relationship with increasingfire severity. This suggests that central Europeanspruce forests may not be significantly impacted byfire. Regional biomass burning dramaticallydecreased with the expansion offire sensitive taxa (e.g.Fagus sylvatica) ~6500 cal yr BP, yet no dramaticreduction in localfire frequency occurred. This suggests either human activities or rarefire-promotingclimatic events were important in shaping localfire regimes. Fire activity peaked (6fires/1000 years)~2500 cal yr BP and paralleled increases in anthropogenic pollen indicators.Fagusresponse curves il-lustrates a negative (p<0.01) relationship with increasing biomass burning andfire severity suggestingthat naturalFagusforests may be increasingly vulnerable to projected increases in wildfire occurrence.
Fichier principal
Vignette du fichier
157858629.pdf (4 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01813530 , version 1 (30-10-2020)

Identifiants

Citer

Vachel Carter, Alice Moravcová, Richard Chiverrell, Jennifer Clear, Walter Finsinger, et al.. Holocene-scale fire dynamics of central European temperate spruce-beech forests. Quaternary Science Reviews, 2018, 191, pp.15 - 30. ⟨10.1016/j.quascirev.2018.05.001⟩. ⟨hal-01813530⟩
121 Consultations
106 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More