Table 1 Weather conditions and fire behavior during prescribed burns in four plots conducted in the spring of 2002 and 2003 in a longleaf pine forest in southern Alabama, USA.
Treatment | Plot | Date | Total burn time (hrs) | Max. ambient air temp (C) | Average RH (%) | Minimum RH (%) | Wind direction/speed (km/hr) | Average Rate of Spread (m/hr) | Average Flame Length (m) | Average Fire Zone Width (m) | Average Residence Time (min) |
|---|---|---|---|---|---|---|---|---|---|---|---|
Burn-only | |||||||||||
6 | 4/17/2002 | 6 | 32 | 45.4 | 38 | var / 8–10 | 62 | 1.1 | 0.9 | 4.8 | |
Herbicide-and-burn | |||||||||||
4 | 4/15/2003 | 9 | 29 | 34.4 | 25.0 | SE / 2–3 | 39 | 0.7 | 0.7 | 3.8 | |
12 | 4/16/2003 | 10 | 29 | 38.1 | 29.0 | S,SW / 3–5 | 57 | 1.6 | 0.9 | 4.3 | |
7 | 5/13/2003 | 8 | 29 | 31.5 | 22.0 | NE / 8 | |||||