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9 Cards in this Set
- Front
- Back
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Impact of fire on shrubs and grasses |
1. Position of meristematic tissue 2. removal of aboveground growth 3. repeated suppression of fires - woody veg replaces grasses |
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Frequency of wildfires |
FFI = fire free intervals Giant sequoias = 10-20yrs ponderosa pines = 6-9yrs prairie grasslands = 3-5yrs |
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Prescribed burning |
The judicious use of fire for a constructive purpose and according to a mgmt plan |
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Prescribed burning objectives (6) |
1. increase forb abundance 2. manage invasion of shrubs and woody veg 3. retard succession 4. create edge 5. increase diversity 6. rejuvenate woody plants for browse production |
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factors influencing a prescribed burn (5) |
size of burn amount and type of fuel fuel moisture content soil moisture timing and frequency of burn |
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The prescription (7 elements) |
1. seasonal timing, late winter = cool season forbs 2. Fuel - fine fuel carries fire 3. Topography and physiography - natural firebreaks 4. Weather - humidity, temp, wind speed 5. Firelines & Firebreaks - mechanical removal of fuels 6. Equipment & Crew - fireboss, workers, pumper 7. Structures and neighbors - fences etc. |
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Fire anatomy |
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Types of Fire (4) |
1. backfire - moves against the wind 2. head fire - moves with the wind 3. strip-head fire - several persons walking perpendicular to the wind 4. flank fire - fires started by walking into the wind |
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fire - effects on wildlife |
- BobwhiteQuail respond positively to burning - - Bare ground and forb production (quail are earlysuccession animals) - 1 - 2 year old burns. - prairie chickens, elk, deer increase |
