MagneBrossierGandouinEtAl2020

Référence

Magne, G., Brossier, B., Gandouin, E., Paradis, L., Drobyshev, I., Kryshen, A., Hély, C., Alleaume, S., Ali, A.A. (2020) Lacustrine charcoal peaks provide an accurate record of surface wildfires in a North European boreal forest. Holocene, 30(3):380-388. (Scopus )

Résumé

We evaluated the skills of different palaeofire reconstruction techniques to reconstruct the fire history of a boreal landscape (Russian Karelia) affected by surface fires. The analysis of dated lacustrine sediments from two nearby lakes was compared with independent dendrochronological dating of fire scars, methods which have rarely been used in context of surface fires. We used two sediment sub-sampling volumes (1 and 3.5 cm3, wet volumes) and three methods of calculating the Charcoal Accumulation Rate to reconstruct fire histories: CHAR number, charcoal surface area and estimated charcoal volume. The results show that palaeofire reconstructions obtained with fossil charcoal data from lake sediments and dendrochronology are similar and complementary. Dendrochronological reconstruction of fire scars established 12 fire dates over the past 500 years, and paleo-data from lake sediments identified between 7 and 13 fire events. Several ‘false fire events’ were also recorded in the charcoal chronologies, likely because of errors associated with the estimation of the sediment accumulation rate in the unconsolidated part of the sediment. The number of replicates, that is, number of sub-samples and lakes analyzed, had an effect on the number of identified fire events, whereas no effect was seen in the variation in the analyzed sediment volume or the choice of the charcoal-based metric. Whenever possible, we suggest the use of the dendrochronological data as an independent control for the calibration of charcoal peak series, which helps provide more realistic millennia-long reconstruction of past fire activity. We also argue for the use of 1 cm3 sample volume, a sampling protocol involving sampling of more than one lake, and sufficient number of intra-sample replicates to achieve skilful reconstructions of past fire activity. © The Author(s) 2019.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { MagneBrossierGandouinEtAl2020,
    AUTHOR = { Magne, G. and Brossier, B. and Gandouin, E. and Paradis, L. and Drobyshev, I. and Kryshen, A. and Hély, C. and Alleaume, S. and Ali, A.A. },
    JOURNAL = { Holocene },
    TITLE = { Lacustrine charcoal peaks provide an accurate record of surface wildfires in a North European boreal forest },
    YEAR = { 2020 },
    NOTE = { cited By 0 },
    NUMBER = { 3 },
    PAGES = { 380-388 },
    VOLUME = { 30 },
    ABSTRACT = { We evaluated the skills of different palaeofire reconstruction techniques to reconstruct the fire history of a boreal landscape (Russian Karelia) affected by surface fires. The analysis of dated lacustrine sediments from two nearby lakes was compared with independent dendrochronological dating of fire scars, methods which have rarely been used in context of surface fires. We used two sediment sub-sampling volumes (1 and 3.5 cm3, wet volumes) and three methods of calculating the Charcoal Accumulation Rate to reconstruct fire histories: CHAR number, charcoal surface area and estimated charcoal volume. The results show that palaeofire reconstructions obtained with fossil charcoal data from lake sediments and dendrochronology are similar and complementary. Dendrochronological reconstruction of fire scars established 12 fire dates over the past 500 years, and paleo-data from lake sediments identified between 7 and 13 fire events. Several ‘false fire events’ were also recorded in the charcoal chronologies, likely because of errors associated with the estimation of the sediment accumulation rate in the unconsolidated part of the sediment. The number of replicates, that is, number of sub-samples and lakes analyzed, had an effect on the number of identified fire events, whereas no effect was seen in the variation in the analyzed sediment volume or the choice of the charcoal-based metric. Whenever possible, we suggest the use of the dendrochronological data as an independent control for the calibration of charcoal peak series, which helps provide more realistic millennia-long reconstruction of past fire activity. We also argue for the use of 1 cm3 sample volume, a sampling protocol involving sampling of more than one lake, and sufficient number of intra-sample replicates to achieve skilful reconstructions of past fire activity. © The Author(s) 2019. },
    AFFILIATION = { Institut des Sciences de l’Evolution de Montpellier (ISEM), Université de Montpellier, CNRS, EPHE, IRD, France; Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, France; Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Sweden; Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, Canada; Forest Research Institute of the Karelian Research Centre of the Russian Academy of Sciences, Russian Federation; EPHE, PSL University, France; TETIS, IRSTEA, AgroParisTech, CIRAD, CNRS, Université de Montpellier, France },
    AUTHOR_KEYWORDS = { dated fire scar; dendrochronology; lacustrine sediments; late Holocene; natural disturbance regimes; Russian Karelia; surface fires; tree-ring records },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1177/0959683619887420 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075320656&doi=10.1177%2f0959683619887420&partnerID=40&md5=a99ef5479e5738e5e28e9e00150a5e3e },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Un regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Congrès Mycelium ****************** **********************************************************

Reporté en 2021

********************************************************** ***************** Pub - IWTT ****************** **********************************************************

Reporté en 2021

**********************************************************

***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...