DOI: 10.1016/j.quascirev.2016.01.027
Scopus记录号: 2-s2.0-84958069016
论文题名: Identifying past fire regimes throughout the Holocene in Ireland using new and established methods of charcoal analysis
作者: Hawthorne D. ; Mitchell F.J.G.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 137 起始页码: 45
结束页码: 53
语种: 英语
英文关键词: Charcoal
; Fire
; Holocene
; Ireland
; Methods
Scopus关键词: Charcoal
; Land use
; Screening
; Signal to noise ratio
; Analytical procedure
; Charcoal analysis
; Ensemble members
; Holocenes
; Ireland
; Methods
; Parameter selection
; Screening procedures
; Fires
; anthropogenic effect
; charcoal
; fire history
; Holocene
; lacustrine deposit
; paleoenvironment
; reconstruction
; software
; statistical analysis
; wildfire
; Ireland
英文摘要: Globally, in recent years there has been an increase in the scale, intensity and level of destruction caused by wildfires. This can be seen in Ireland where significant changes in vegetation, land use, agriculture and policy, have promoted an increase in fires in the Irish landscape. This study looks at wildfire throughout the Holocene and draws on lacustrine charcoal records from seven study sites spread across Ireland, to reconstruct the past fire regimes recorded at each site. This work utilises new and accepted methods of fire history reconstruction to provide a recommended analytical procedure for statistical charcoal analysis. Digital charcoal counting was used and fire regime reconstructions carried out via the CharAnalysis programme. To verify this record new techniques are employed; an Ensemble-Member strategy to remove the objectivity associated with parameter selection, a Signal to Noise Index to determine if the charcoal record is appropriate for peak detection, and a charcoal peak screening procedure to validate the identified fire events based on bootstrapped samples. This analysis represents the first study of its kind in Ireland, examining the past record of fire on a multi-site and paleoecological timescale, and will provide a baseline level of data which can be built on in the future when the frequency and intensity of fire is predicted to increase. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59644
Appears in Collections: 过去全球变化的重建
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作者单位: Botany Department, School of Natural Sciences, Trinity College Dublin, College Green, Dublin 2, Ireland
Recommended Citation:
Hawthorne D.,Mitchell F.J.G.. Identifying past fire regimes throughout the Holocene in Ireland using new and established methods of charcoal analysis[J]. Quaternary Science Reviews,2016-01-01,137