Table 2 Weather conditions and fire behavior parameters for the prescribed burns and bushfires that occurred on the Swan Coastal Plain north of Perth, Western Australia, Australia, that were studied from 2017 through 2019 to compare resulting availability of seed from B. attenuata and B. menzeseii. Note that the rates of spread listed are for headfire; flank fires spread at approximately half the headfire rate of spread. Burn = prescribed burn, Fire = bushfire, NR = Nature Reserve, SF = State Forest, Rh= Relative humidity
Area name | Type | Date commenced | Forecast maximum temperature (°C) | Forecast minimum Rh (%) | Forecast wind direction; speed (km h–1) | Fuel loads (t ha–1) | Headfire rate of spread range (m h–1) | Intensity range (kW m–1) |
|---|---|---|---|---|---|---|---|---|
Moore River NR | Fire | 02 Dec 2014 | 28 | 23 | ESE to SW; 10 to 25 | 8.6 to 10.9 | 500 | 2150 to 2725 |
Moore River NR | Burn | 09 Oct 2014 | 22 | 43 | SW to SSW; 15 to 25 | 6.6 to 8.4 | 60 to 150 | 198 to 630 |
Yeal NR | Fire | 22 Nov 2015 | 38 | 13 | NE to WNW; 20 to 35 | 16.1 to 19.1 | 1500 to 8000 | 12 075 to 76 400 |
Yeal NR | Burn | 18 Sep 2015 | 26 | 37 | WSW; 15 to 25 | 10.1 to 13.1 | 60 to 150 | 303 to 983 |
Caraban SF | Fire | 01 Jan 2016 | 35 | 20 | E to ESE; 20 to 45 | 9.0 to 10.8 | 1000 to 4000 | 4500 to 21600 |
Caraban SF | Burn | 12 May 2015 | 24 | 38 | E to ENE; 15 to 25 | 7 to 8.8 | 60 to 150 | 210 to 660 |