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Notes: Relation of Silica Content to Flammability in Grasses

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Two highly combustible western grasses, cheatgrass (Bromus tectorum L.) and medusahead (Taeniatherum asperum (Sim.) Nevski) differ greatly in total ash content. Ash contents of cheatgrass and medusahead are 5.04 and 18.49 percent, respectively, but silica-free ash contents are 0.99 and 1.35 percent. Thermoanalyses indicated pyrolytic similarity between the two grasses. Results suggest that the silica fraction should be discounted when relating ash content to pyrolysis and ignition processes of wildland fuels. Forest Sci. 16:64-65.

Keywords: Bromus tectorum; Cheatgrass; Taeniatherum asperum; medusahead

Document Type: News

Affiliations: Intermountain Forest and Range Exp. Sta., U.S. Forest Serv., Ogden, Utah 84401

Publication date: 1970-03-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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