How exactly do fires effect plant populations?

Question

Detailed answers please. I really want to understand. I always thought fires were bad.

Answer 1

In grasslands, fires help maintain the grasslands:
1. Fires kill the growing parts of trees and shrubs, but not the grasses which can grow back from the root system.
2. Fires burn off the old dead leaves and return the nutrients to the ground.
3. Fires make the surface black, so it warms up faster to let plants begin to grow in the spring.
4. Fires are necessary for some types of seeds to germinate.
5. Fires take away the dead grasses so that the rain can fall onto the ground to be used instead of wetting the dead grasses and evaporating back into the air without being of any use to the plants.

Periodic fires are beneficial in forests because they burn away the fallen twigs and leaves a little at a time instead of letting them build up and causing a big fire that kills trees.

Answer 2

Fires are necessary for grasslands. In fact grasses have evolved with intent to be burnt , and sycamores are fire resistant. Even the seeds of the corn , grassland dicothyledons and grasses themselves are kicked out of dormancy if razed by fire.

Such grasses usually dry to a highly flamable hay , not by accident. THE EFFECT fire has on these plains (being "fire prone domains") are that the "timberline" population cannot en-crouch the "plains". To say that a niche has been created by evolution that rides on fire. (And a "speedier" chlorophyle.) (Let us say that the "fire" lands are Carbon-FOUR countries?) .. , maybe.

** I would study the effect of fire with the C-4 chlorophyle , together.

Answer 3

via the time the Germans surrendered in might, 1945, the great international became into quite weary of a conflict that had seen a lot destruction and loss of lives, that Truman became into searching for an expedient thank you to end the conflict interior the Pacific Theater. besides the shown fact that Japan have been overwhelmed back and have been now combating on their homestead soil, the conflict might have dragged on for a minimum of yet another six months or longer. there became into no telling what proportion extra lives could be misplaced. on the different hand, understanding previously how helpful the atomic bomb became into, the yank conflict branch might have heavily questioned the morality of using such an horrendous weapon of destruction, and cautioned Truman against using it.

Answer 4

I agree with ecolink, and can add that some evergreen trees (jack pine, for example) don't even release their seeds from the cones until there is a fire.
Fires can be bad for some species, but are good (necessary, even) for others.