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Testing for anthropogenic influence on fire regime for a 600-year period in the Jaksha area, Komi Republic, East European Russia

Drobyshev, Igor LU ; Niklasson, M; Angelstam, P and Majewski, P (2004) In Canadian Journal of Forest Research 34(10). p.2027-2036
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-km(2) 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... (More)
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-km(2) 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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Canadian Journal of Forest Research
volume
34
issue
10
pages
2027 - 2036
publisher
NRC Research Press
external identifiers
  • wos:000225057900005
  • scopus:11244333162
ISSN
1208-6037
DOI
10.1139/X04-081
language
English
LU publication?
yes
id
99734390-5fdf-4ed3-b9ac-d359bf5700d6 (old id 137401)
date added to LUP
2007-07-02 09:20:58
date last changed
2017-05-28 03:44:58
@article{99734390-5fdf-4ed3-b9ac-d359bf5700d6,
  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-km(2) 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.},
  author       = {Drobyshev, Igor and Niklasson, M and Angelstam, P and Majewski, P},
  issn         = {1208-6037},
  language     = {eng},
  number       = {10},
  pages        = {2027--2036},
  publisher    = {NRC Research Press},
  series       = {Canadian Journal of Forest Research},
  title        = {Testing for anthropogenic influence on fire regime for a 600-year period in the Jaksha area, Komi Republic, East European Russia},
  url          = {http://dx.doi.org/10.1139/X04-081},
  volume       = {34},
  year         = {2004},
}