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Fire Resistance of Forest Species as Influenced by Root Systems

Alastair McLean
Journal of Range Management
Vol. 22, No. 2 (Mar., 1969), pp. 120-122
DOI: 10.2307/3896195
Stable URL: http://www.jstor.org/stable/3896195
Page Count: 3
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Fire Resistance of Forest Species as Influenced by Root Systems
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Abstract

There is a close relationship between root system characteristics and the relative fire resistance of douglasfir forest zone species in southern interior British Columbia. Susceptible species are usually those that have fibrous root systems or produce stolons or rhizomes which grow above mineral soil. Moderately resistant species usually have fibrous roots with rhizomes which grow less than 5 cm below the mineral soil surface. Resistant species are those that have rhizomes which grow between 5 and 13 cm below the mineral soil surface and those species with taproots which are able to regenerate from below their crowns. Both timber milkvetch and lupine are undesirable range plants and yet both may increase after a fire.

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