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Fuel loads, fire regimes, and post-fire fuel dynamics in Florida Keys pine forests

International Journal of Wildland Fire

By:
, , , , and
DOI: 10.1071/WF05100

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Abstract

In forests, the effects of different life forms on fire behavior may vary depending on their contributions to total fuel loads. We examined the distribution of fuel components before fire, their effects on fire behavior, and the effects of fire on subsequent fuel recovery in pine forests within the National Key Deer Refuge in the Florida Keys. We conducted a burning experiment in six blocks, within each of which we assigned 1-ha plots to three treatments: control, summer, and winter burn. Owing to logistical constraints, we burned only 11 plots, three in winter and eight in summer, over a 4-year period from 1998 to 2001. We used path analysis to model the effects of fuel type and char height, an indicator of fire intensity, on fuel consumption. Fire intensity increased with surface fuel loads, but was negatively related to the quantity of hardwood shrub fuels, probably because these fuels are associated with a moist microenvironment within hardwood patches, and therefore tend to resist fire. Winter fires were milder than summer fires, and were less effective at inhibiting shrub encroachment. A mixed seasonal approach is suggested for fire management, with burns applied opportunistically under a range of winter and summer conditions, but more frequently than that prevalent in the recent past. ?? IAWF 2006.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Fuel loads, fire regimes, and post-fire fuel dynamics in Florida Keys pine forests
Series title:
International Journal of Wildland Fire
DOI:
10.1071/WF05100
Volume
15
Issue:
4
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
International Journal of Wildland Fire
First page:
463
Last page:
478
Number of Pages:
16