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- Info
Tree mortality 6 years after burning a thinned Quercus Chrysolepis stand
| Author: |
Paysen, T.E. and M.G. Narog |
| Date: |
1993 |
| Periodical: |
Canadian Journal of Forest Resources For. Res. |
| Abstract: |
Managers do not currently use prescribed fire in stands of canyon live oak (Quercus chrysolepis Liebm.) because it is highly susceptible to fire injury. A preliminary study investigating the effects of prescribed burning on this species was initiated on the San Bernardino National Forest in southern California. The purpose was to assess the feasibility of using thinning and prescribed burning to develop shaded fuel breaks in these stands. This paper addresses aboveground tree mortality inventoried 2 and 6 years after a prescribed burn. Aboveground tree stems were judged as live or dead (irrespective of root-zone sprouting). Fire caused approximately 50% mortality in DBH classes 515 cm and <10% in larger classes. Between the 2nd and 6th years after burning, tree mortality increased by only 3%. Our results suggest that prescribed fire can be used as a management tool in Q. chrysolepis stands and that tree mortality might be evaluated sooner than previously believed.' More investigations are required to identify favorable conditions for prescribed burning in this species, as well as applicability for (I) degree of hazard reduction near the urban wildland interface, (II) stand improvement by thinning small or crowded trees, and (III) revitalizing wildlife habitat. |
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