CSIRO Publishing Home Books & CDs Journals About Us Shopping Cart
International Journal of Wildland Fire
  Published on behalf of the International Association of Wildland Fire
You are here: Journals > International Journal of Wildland Fire   
Search
 
 
  Advanced Search
   
Journal Home
General Information
Scope
Editorial Structure
Editorial Contacts
Sites of Interest
Print Publication Dates
Online Content
For Authors
For Referees
How to Order

 Most Read
Visit our Most Read page regularly to keep up-to-date with the most downloaded papers in this journal.

 Early Alert
Subscribe to our email Early Alert or RSS feeds for the latest journal papers.

 

Paired charcoal and tree-ring records of high-frequency Holocene fire from two New Mexico bog sites

Craig D. Allen A F, R. Scott Anderson B, Renata B. Jass C, Jaime L. Toney D and Christopher H. Baisan E

A US Geological Survey, Jemez Mountains Field Station, Los Alamos, NM 87544, USA.
B Center for Environmental Sciences and Education, and Quaternary Sciences Program, Northern Arizona University, Flagstaff, AZ 86011, USA.
C 4014A Lewis Lane, Austin, TX 78730, USA.
D Brown University, Geological Sciences, Providence, RI 02912, USA.
E Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, USA.
F Corresponding author. Email: craig_allen@usgs.gov


Abstract

Two primary methods for reconstructing paleofire occurrence include dendrochronological dating of fire scars and stand ages from live or dead trees (extending back centuries into the past) and sedimentary records of charcoal particles from lakes and bogs, providing perspectives on fire history that can extend back for many thousands of years. Studies using both proxies have become more common in regions where lakes are present and fire frequencies are low, but are rare where high-frequency surface fires dominate and sedimentary deposits are primarily bogs and wetlands. Here we investigate sedimentary and fire-scar records of fire in two small watersheds in northern New Mexico, in settings recently characterised by relatively high-frequency fire where bogs and wetlands (Chihuahueños Bog and Alamo Bog) are more common than lakes. Our research demonstrates that: (1) essential features of the sedimentary charcoal record can be reproduced between multiple cores within a bog deposit; (2) evidence from both fire-scarred trees and charcoal deposits documents an anomalous lack of fire since ~1900, compared with the remainder of the Holocene; (3) sedimentary charcoal records probably underestimate the recurrence of fire events at these high-frequency fire sites; and (4) the sedimentary records from these bogs are complicated by factors such as burning and oxidation of these organic deposits, diversity of vegetation patterns within watersheds, and potential bioturbation by ungulates. We consider a suite of particular challenges in developing and interpreting fire histories from bog and wetland settings in the Southwest. The identification of these issues and constraints with interpretation of sedimentary charcoal fire records does not diminish their essential utility in assessing millennial-scale patterns of fire activity in this dry part of North America.

Keywords: Alamo Bog, CHAPS, Chihuahueños Bog, fire scars, Jemez Mountains, replicated charcoal records.

International Journal of Wildland Fire 17(1) 115–130    doi:10.1071/WF07165
Submitted: 7 May 2007    Accepted: 15 November 2007    Published: 15 February 2008





   
Subscriber Login
Username:
Password:  

 View
Issue Contents
PDF (1.9 MB) $25
Export Citation
Cited by
 Tools
Print
Email this page
    


 
Top  Email this page
 


Legal & Privacy | Sitemap | Contact Us | Help

CSIRO

© CSIRO 1996-2010