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Prediction and measurement of thermally induced cambial tissue necrosis in tree stems

Author(s): Joshua L. Jones, Brent W. Webb, Bret W. Butler, Matthew B. Dickinson, Daniel M. Jimenez, James J. Reardon, Anthony S. Bova
Year Published: 2006
Description:

A model for fire-induced heating in tree stems is linked to a recently reported model for tissue necrosis. The combined model produces cambial tissue necrosis predictions in a tree stem as a function of heating rate, heating time, tree species, and stem diameter. Model accuracy is evaluated by comparison with experimental measurements in two hardwood and two softwood species: red maple (Acer rubrum), chestnut oak (Quercus prinus), ponderosa pine (Pinus ponderosa), and Douglas-fir (Pseudotsuga menziesii). Results are promising, and indicate that the model predicts stem mortality/survival correctly in ~75-80% of the test cases. A limited sensitivity analysis of model kill depth predictions suggests that the model is more sensitive to required input data for some species than for others, and that the certainty in predicting vascular cambium necrosis decreases as stem diameter decreases.

Citation: Jones, Joshua L.; Webb, Brent W.; Butler, Bret W.; Dickinson, Matthew B.; Jimenez, Daniel; Reardon, James J.; Bova, Anthony S. 2006. Prediction and measurement of thermally induced cambial tissue necrosis in tree stems. International Journal of Wildland Fire. 15(1): 3-17.
Topic(s): Fire Effects, Ecological - Second Order, Vegetation
Ecosystem(s): Montane dry mixed-conifer forest, Ponderosa pine woodland/savanna
Document Type: Book or Chapter or Journal Article
NRFSN number: 7949
FRAMES RCS number: 4413
Record updated: Apr 1, 2015