How do forests recover from fire?
Answer:
#1 the fire destroys the life cycle of pathogens that are present
#2 microorganisms and bugs begin to break down the organic matter that is left fromt he fire which leaves nutrients to enrich the area for fungus spores arrive and germinate
#3 fungi grow and further break down leftover organic material to provide nutrient rich substrate for plant growth.
#4 plant seed or spores arrive in the area via wind dispersal, animal dispersal by animals seeking food of the initial plants and fungus that grow, or water dispersal.
#5 the plants seeds germinate forming specie specific symbiosis with soil-borne fungi and bacteria that promote their growth.
#6 slower growing plants are supported mostly by their fungal associations that allows them to survive even though they are losing the competition for sunlight to faster growing species.
#7 animals migrate back to the area attracted by shelter and food, once the plant life is well established.
*8 man arrives and clears it all out to build strip malls.
some pine cone seeds actually germinate better after a fire .
Forest fires are actually a natural process that clears out debris and makes new growth possible. There really isn't a recovery, it's just like a rebirth of the forest.
re growth
Depends upon the extent of the fire and how deep it kills the forest off...True that forests are reborn after a devastating fire; but the original stand of trees and complexity of that system will take lifetime to recover.. Fires if not too extreme are useful in eliminating undergrowth in "harvest stands".aka pines stands (forest) that are cut down routinely for lumber products. As to the details of how forest recover!! Goes something like once fire has burnt all living matter.there is a mass of regrowth (usually grasses) and some primary growth trees(soft woods).. Then forest if left unchecked will become a thicket..then as time progresses without incident mature with a more hardy and complex selection of species; both plant and animal... Fire is good for a forest; although too much of anything isn't so HOT!!
It rains.
Do your own research, we're not here to do your homework for you.
In Michigan, the "Jack Pine" trees have pinecones that have a waxy coating on the outside. When fire rips through the area, it melts the coating and spreads the seeds. We used to get drunk and toss these cones in the backyard bonfires and watch them pop open (cheap entertainment). You can find more info out at the Michigan DNR website. It will also show how the "Jack Pine Ecosystem" works.
One way is if it's a forest that naturally burns, then after the burn the ground is black, which lets the sun heat it up more easily, which stimulates roots to grow again.
Saw a show on this the other day.
Over time, carbon dioxide mixing in with oxygen and all the ashes create fertile soil.This fertile soil provides the growth of a new forest.
During the winter when you burn logs in the fireplace, sprinkle the ashes in a small section of your yard. When spring comes, you will see that your grass is greener and thicker!
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