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    • Journal of Range Management, Volume 53 (2000)
    • Journal of Range Management, Volume 53, Number 6 (November 2000)
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    Fire history of the Rochelle Hills Thunder Basin National Grasslands

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    Author
    Perryman, B. L.
    Laycock, W. A.
    Issue Date
    2000-11-01
    Keywords
    history
    Juniperus scopulorum
    fire scars
    fire intervals
    understory
    frequency
    grasslands
    Pinus ponderosa
    fire ecology
    fires
    fire effects
    Wyoming
    plant litter
    seasonal variation
    canopy
    fire intervals
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    Citation
    Perryman, B. L., & Laycock, W. A. (2000). Fire history of the Rochelle Hills Thunder Basin National Grasslands. Journal of Range Management, 53(6), 660-665.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643823
    DOI
    10.2307/4003163
    10.2458/azu_jrm_v53i6_perryman
    Additional Links
    https://rangelands.org/
    Abstract
    A fire scar chronology was constructed from ponderosa pine (Pinus ponderosa Dougl. ex Laws.) and Rocky Mountain juniper (Juniperus scopulorum Sarg.) trees within the 70 km2 Rochelle Hills Area of the Thunder Basin National Grasslands, in north-east Wyoming. A total of 65 fire scars occurred in 48 crossdated samples, and a master fire chronology was constructed for the period 1565 to 1988. No trees recorded more than 3 fires and most (26 of 42) recorded only one. For this reason, fire frequency intervals were considered as fire-free intervals in the Rochelle Hills Area. The Weibull Median Probability Interval (WMPI) for the entire period of record was 7.4; 7.9 for the non-suppression period (1565 to 1939); and 6.7 for the suppression period (1940 to 1988). Infrequent occurrence of multiple scars, rough topography, and low potential substrates suggest that understory fuel loads were limited in amount and spatial consistency during most fire years. Position of scars within annual growth rings suggests that most fires (80%) occurred during the latter stages of the growing season or during the dormant period.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003163
    Scopus Count
    Collections
    Journal of Range Management, Volume 53, Number 6 (November 2000)

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