Table 4 Average soil temperatures, heat dosage, and severity for prescribed burns conducted in South Puget Sound, Washington, USA, prairies. All codes for the site listings are detailed in Table 1.
2014 burn date | Site | Time of ignition (hours) | Burn length (min) | Peak soil temp. (°C) | Lethal heat dose a (°C * log[min]) | Quadrats with lethal heat dose (n) | Unburned or scorched area cover (%) |
|---|---|---|---|---|---|---|---|
22 Jul | LW | 0942 | 33 | 22.7 | 0.00 | 0 | 25.5 |
22 Jul | LW | 1341 | 11 | 27.4 | 0.00 | 0 | 5.1 |
5 Aug | TA6 | 0908 | 35 | 28.3 | 0.17 | 1 | 18.4 |
5 Aug | TA6 | 1430 | 9 | 54.8 | 9.42 | 14 | 0.0 |
7 Aug | JP | 0804 | 27 | 25.1 | 0.00 | 0 | 4.1 |
7 Aug | JP | 0920 | 20 | 29.3 | 0.20 | 1 | 0.0 |
7 Aug | JP | 1400 | 20 | 47.3 | 6.96 | 11 | 0.0 |
7 Aug | JP | 1501 | 9 | 41.2 | 1.59 | 8 | 0.0 |
15 Aug | UW | 1238 | 28 | 27.6 | 0.00 | 0 | 25.5 |
18 Aug | TA15 | 0858 | 32 | 22.1 | 0.00 | 0 | 94.9 |
18 Aug | TA15 | 1002 | 20 | 26.9 | 0.00 | 0 | 43.9 |
18 Aug | TA15 | 1534 | 37 | 47.2 | 10.45 | 11 | 16.3 |
18 Aug | TA15 | 1716 | 20 | 5.1 | |||
19 Aug | UW | 1632 | 15 | 40.4 | 1.74 | 8 | 13.3 |
25 Aug | SW | 0900 | 28 | 24.4 | 0.00 | 0 | 18.4 |
25 Aug | SW | 1505 | 13 | 41.9 | 2.73 | 9 | 15.3 |
15 Sep | GH | 1014 | 20 | 34.5 | 1.24 | 2 | 42.9 |
15 Sep | GH | 1230 | 12 | 45.2 | 3.09 | 6 | 6.1 |
18 Sep | TQ | 1331 | 53 | 23.4 | 0.00 | 0 | 92.9 |
22 Sep | TQ | 1600 | 17 | 17.4 | |||
Minimum | 9 | 22.1 | 0.00 | 0 | 0.0 | ||
Mean | 23 | 33.9 | 2.09 | 4 | 22.3 | ||
Maximum | 37 | 54.8 | 10.45 | 14 | 94.9 |