DrobyshevNiklassonAngelstamEtAl2004

Référence

Drobyshev, I., Niklasson, M., Angelstam, P., Majewski, P. (2004) Testing for anthropogenic influence on fire regine for a 600-year period in the Jaksha area, Komi Republic, East European Russia. Canadian Journal of Forest Research, 34(10):2027-2036. (Scopus )

Résumé

In an attempt to quantitatively evaluate the natural versus anthropogenic signal in site fire histories, the statistical relationship between dendrochronologically dated fire events and tree-ring chronologies (deemed to be an independent proxy for climate variation) was analyzed for 14 sites in a 2600-km2 area of pine-dominated forests in the Komi Republic (East European Russia) over the period from 1424 to 1954. We developed a cumulative measure of statistical fit between two types of fire events (early- and late-season fires) and ring-width chronologies of Scots pine (Pinus sylvestris L.) (total ring- and latewood-width chronologies). For a given site, the statistical fit between fires and tree-ring data tended to decrease with an increasing proportion of unique fire years. Distance from a site to the nearest village (deemed to be a proxy of human impact) explained 50% of the variation in statistical fit between fires and tree-ring data. The fit decreased in the majority of the sites from the earlier (1424-1700) to the later (1700-1960) periods. We interpret this to be a result of increased human impact on the fire regime since 1700 due to intensified colonization of the area.

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@ARTICLE { DrobyshevNiklassonAngelstamEtAl2004,
    AUTHOR = { Drobyshev, I. and Niklasson, M. and Angelstam, P. and Majewski, P. },
    TITLE = { Testing for anthropogenic influence on fire regine for a 600-year period in the Jaksha area, Komi Republic, East European Russia },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2004 },
    VOLUME = { 34 },
    PAGES = { 2027-2036 },
    NUMBER = { 10 },
    NOTE = { cited By (since 1996)12 },
    ABSTRACT = { In an attempt to quantitatively evaluate the natural versus anthropogenic signal in site fire histories, the statistical relationship between dendrochronologically dated fire events and tree-ring chronologies (deemed to be an independent proxy for climate variation) was analyzed for 14 sites in a 2600-km2 area of pine-dominated forests in the Komi Republic (East European Russia) over the period from 1424 to 1954. We developed a cumulative measure of statistical fit between two types of fire events (early- and late-season fires) and ring-width chronologies of Scots pine (Pinus sylvestris L.) (total ring- and latewood-width chronologies). For a given site, the statistical fit between fires and tree-ring data tended to decrease with an increasing proportion of unique fire years. Distance from a site to the nearest village (deemed to be a proxy of human impact) explained 50% of the variation in statistical fit between fires and tree-ring data. The fit decreased in the majority of the sites from the earlier (1424-1700) to the later (1700-1960) periods. We interpret this to be a result of increased human impact on the fire regime since 1700 due to intensified colonization of the area. },
    CODEN = { CJFRA },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/X04-081 },
    ISSN = { 00455067 },
    KEYWORDS = { Climatology; Data reduction; Forestry; Statistical methods, Chronology; Colonization, Fire hazards, anthropogenic effect; dendrochronology; fire history; historical ecology, Data Processing; Fires; Meteorology; Pinus Sylvestris; Statistical Analysis, Eastern Hemisphere; Eurasia; Jaksha; Komi; Russian Federation; World, Pinus sylvestris },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-11244333162&partnerID=40&md5=3eeb0ddea71c6117cbfda68acfbc5a0f },
}

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