Vegetation Response To Prescribed Fire In The Kenai Mountains Alaska

Author : Tina V. Boucher
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.1M/5 ( download)

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Download or read book Vegetation Response to Prescribed Fire in the Kenai Mountains, Alaska written by Tina V. Boucher and published by . This book was released on 2003 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 1977 and 1997, 4000 ha were burned to promote regeneration of tree and shrub species used for browse by moose (Alces alces) in the Kenai Mountains. Species composition was documented along burned and unburned transects at 17 prescribed burn sites. Relationships among initial vegetation composition, physical site characteristics, browse species abundance, and competitive herbaceous vegetation were examined to determine controls on browse species regeneration after prescribed burning. Browse species abundance after burning was inversely related to Calamagrostis canadensis Michx. Beauv. (bluejoint reedgrass) abundance prior to burning. Calamagrostis canadensis abundance was related to specific landscape characteristics. Depositional slopes, such as fluvial valley bottoms and toe slopes, often featured soils with deep, loamy surface horizons. Sites with these characteristics generally showed large increases in C. canadensis cover after prescribed burning, even when C. canadensis was a low percentage (3 percent) of the canopy cover prior to burning. The most important preburn variables for predicting postburn browse species abundance were preburn C. canadensis cover and the type of surficial deposit. Site conditions that are favorable to C. canadensis may be problematic for successful regeneration of browse species, especially if browse species are not present in the initial composition.

Author : Tina V. Boucher
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.78/5 ( download)

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Download or read book Vegetation Response to Prescribed Fire in the Kenai Mountains, Alaska written by Tina V. Boucher and published by . This book was released on 2001 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chugach National Forest has been using prescribed fire as a wildlife habitat management tool since l977. Between 1977 and 1997 about 4,000 hectares have been burned on the Kenai Peninsula to promote regeneration of woody plant species used by moose (Alces alces). Browse species include paper birch (Betula papyrifera), cottonwood (Populus balsamifera subsp. balsamifera and Populus balsamifera subsp. trichocarpa), aspen (Populus tremuloides), Scouler willow (Salix scouleriana), Barclay willow (Salix barclayi) and other tall shrub willows (Salix spp.). The purpose of this study was to evaluate the results of 20 years of prescribed fire in order to assess vegetation response to burning and provide managers with information on future prescribed burn planning. This analysis evaluated relationships among initial vegetation composition, physical site characteristics, browse species abundance, competitive herbaceous vegetation, and fire severity. With few exceptions, browse species increased in abundance after burning where they were present in the initial composition (measurements were made 15 to 20 years post-burn). Early successional grasses and forbs such as Epilobium angustfolium and Calamagrostis canadensis also tended to increase. Late successional species and forest associated species tended to decrease; these species include conifer seedlings, saplings, and trees (Tsuga mertensiana and Picea x lutzii), Rubus pedatus, Linnaea borealis, Drypoteris dilatata, and Menziesia ferruginea. Dwarf shrubs such as Vaccinium uliginosum, V. vitis-idaea, and Empetrum nigrum tended to decrease. Browse species abundance was inversely related to C. canadensis abundance. C. canadensis abundance increases with increasing depth of loamy mineral soil and increasing moisture (but C. canadensis does not occur abundantly on boggy sites with organic soils). Soils with deep loamy surface horizons tend to occur on depositional slopes such as fluvial valley bottoms and toe slopes. Sites with these features generally show large increases in C. canadensis cover after prescribed burning, even when C. canadensis cover is low (3%) prior to burning. The most important pre-burn variables for predicting post-burn browse species abundance are pre-burn C. canadensis cover and type of surficial deposit. Site conditions that are favorable to C. canadensis may be problematic for successful regeneration of browse species, especially if browse species are not present in the initial composition.

Author :
Publisher : Forest Service
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.38/5 ( download)

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Download or read book Wildland Fire in Ecosystems written by and published by Forest Service. This book was released on 2008 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This state-of-knowledge review of information on relationships between wildland fire and nonnative invasive plants can assist fire managers and other land managers concerned with prevention, detection, and eradication or control of nonnative invasive plants. The 16 chapters in this volume synthesize ecological and botanical principles regarding relationships between wildland fire and nonnative invasive plants, identify the nonnative invasive species currently of greatest concern in major bioregions of the United States, and describe emerging fire-invasive issues in each bioregion and throughout the nation. This volume can help increase understanding of plant invasions and fire and can be used in fire management and ecosystem-based management planning. The volume's first part summarizes fundamental concepts regarding fire effects on invasions by nonnative plants, effects of plant invasions on fuels and fire regimes, and use of fire to control plant invasions. The second part identifies the nonnative invasive species of greatest concern and synthesizes information on the three topics covered in part one for nonnative invasives in seven major bioregions of the United States: Northeast, Southeast, Central, Interior West, Southwest Coastal, Northwest Coastal (including Alaska), and Hawaiian Islands. The third part analyzes knowledge gaps regarding fire and nonnative invasive plants, synthesizes information on management questions (nonfire fuel treatments, postfire rehabilitation, and postfire monitoring), summarizes key concepts described throughout the volume, and discusses urgent management issues and research questions.

Author :
Publisher :
ISBN 13 :
Total Pages : 372 pages
Book Rating : 4.40/5 ( download)

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Download or read book Research Paper PNW. written by and published by . This book was released on 1978 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Publisher :
ISBN 13 :
Total Pages : 1092 pages
Book Rating : 4.00/5 ( download)

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Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2008 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Dale D. Wade
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.49/5 ( download)

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Download or read book A Guide for Prescribed Fire in Southern Forests written by Dale D. Wade and published by . This book was released on 1989 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Alaska Forest Fire Council
Publisher : Portland, Or : Pacific Northwest Forest and Range Experiment Station
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.40/5 ( download)

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Download or read book Fire in the Northern Environment--a Symposium written by Alaska Forest Fire Council and published by Portland, Or : Pacific Northwest Forest and Range Experiment Station. This book was released on 1971 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : James E. Lotan
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.43/5 ( download)

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Download or read book Effects of Fire on Flora written by James E. Lotan and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Harold John Lutz
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.73/5 ( download)

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Download or read book Ecological Effects of Forest Fires in the Interior of Alaska written by Harold John Lutz and published by . This book was released on 1956 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Linda Marie Kuddes-Fischer
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.77/5 ( download)

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Download or read book Response of Understory Vegetation and Tree Regeneration to a Single Prescribed Fire in an Oak Pine Ecosystem written by Linda Marie Kuddes-Fischer and published by . This book was released on 1999 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: