wildfore general Flashcards
what is a wildfire
UNCONTROLLED FIRE EITHER NATURAL OR HUMAN MADE
what 3 things do fires need
oxygen heat and fuel
examples of heat
sun
matches
lightning
examples of fuel
dry grass
leaf litter
peat
trees
which part of tree is hardest to control
crown
which fire is easiest to control
surface
which fire has longest burn
ground
which fire has shortes burn
crown
which fire is coldest
gound
which fire is hottest
crown
which fire is most common
surface
which fire spreads the fastest
crown
factors affecting wildfire
wind - directs fire to new fusl and increases spread
topogrqphy - steep slope spreads fire up hill fast due to convection currents
humidity - lower humidity increases spread
season summer drier and rich in o2
density of fuel increase spread
temperature high temp = more likely to start
mositure of fuel dry fuels easy to ignite
ways to stop spread of fire
prescribed burning removes fuels and encourages fire resistant species
mechanical thinning reduces desnity of fuels
replant fire resistant trees
irrigation systems
fire breaks
fire plans
water and chemical carrying vehicles
positives from wf
cost effective
keeps forest healthy
causes the release of seeds from cones
