Joseph W. Jones Ecological Research Center at Icha...
Route 2 Box 2324
Newton , GA 39870, United States
Publications in Fire Ecology
Acute Physiological Stress and Mortality Following Fire in a Long-Unburned Longleaf Pine Ecosystem
One important legacy of fire exclusion in ecosystems dependent upon frequent fire is the development of organic soil horizons (forest floor) that can be colonized by fine roots. When fire is re-introduced, the forest floor is often consumed by fire and heavy overstory mortality, often delayed by months, results. We hypothesized that the delayed post-fire tree mortality is a manifestation of a cascade of physiological stresses initiated by root damage that can also magnify the impact of other kinds of damage. We investigated the physiological impact of forest floor consumption on longleaf pines (Pinus palustris
Mill.) subjected to a wildfire in 2005 in a long-unburned (> 50 years) forest by measuring forest floor consumption, whole tree water use, and leaf chlorophyll content. [Read More]
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