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    Fire History in Ponderosa Pine and Mixed-Conifer Forests of the Jemez Mountains, Northern New Mexico

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    Author
    Touchan, Ramzi
    Swetnam, Thomas W.
    Affiliation
    Laboratory of Tree-Ring Research, University of Arizona
    Laboratory of Tree-Ring Research, University of Arizona
    Issue Date
    1995-03-20
    
    Metadata
    Show full item record
    Publisher
    Laboratory of Tree-Ring Research, University of Arizona (Tucson, AZ)
    Description
    A Final Report Submitted to the USDA Forest Service, Santa Fe National Forest and USDI National Park Service, Bandelier National Monument
    URI
    http://hdl.handle.net/10150/302443
    Abstract
    We reconstructed fire history in ponderosa pine and mixed-conifer forests across the Jemez Mountains in northern New Mexico. We collected the fire-scarred samples from nine ponderosa pine areas and four mesic mixed-conifer areas. An additional collection was obtained from a bristlecone pine stand in the Sangre de Cristo Mountains. We also reconstructed December-June precipitation from ponderosa pine tree-ring indices that were developed from four different watersheds in northern New Mexico. Prior to 1900, ponderosa pine forests were characterized by high frequency, low intensity surface fire regimes. The mixed-conifer stands sustained somewhat less frequent surface fires, along with patchy crown fires. In both ponderosa pine and mixed-conifer forests precipitation was significantly reduced in the winter-spring seasons preceding fire events. In addition, winter-spring precipitation during the third year preceding major fire years in the ponderosa pine forest was significantly increased. This study provides baseline knowledge concerning the ecological role of fire in ponderosa pine and mixed-conifer forests. This information is vital to support ongoing ecosystem management efforts in the Jemez Mountains.
    Type
    text
    Language
    en_US
    Collections
    Natural History Reports

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