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The answer is in the question. Fire must be harmful to them. Pine trees, and other conifers have high levels of substances called turpines in their leaves. This serves two maior purposes, to make them taste foul (few animals graze on pine leaves) and to act as a kind of anti-freeze, so the leaves work all year round, even in subarctic conditions.
However, turpines are highly flammable, so pine saplings will rarely survive a grassland fire. The saplings don't survive on the grassland and the trees don't encroach.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agocus grass lands don't have enough water to grow trees
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What kind of trees are in grasslands?
very few trees exist in grasslands, but there are some. No pine trees though.
Do pine trees have leafs?
No, Pine Trees have pine needles, not leaves
Do you cones grow in pine trees or ash trees?
Pine trees of course!
What is a pine plantation?
A plantation (area of trees) of pine trees
What do you get turpentine from?
It is distilled from the resin of trees. Mostly from pine trees.
What do pine trees have that fern and mosses do not?
Pine trees have quite a few things that fern and mosses do not. Pine trees have pine cones and a wooden trunk.
Do pine trees grow in the rain-forest?
No, there is only pine trees in pine forests. I think?
Is cherry wood man made?
Natural, Pine comes from pine trees and trees grow naturally!
Do any pine trees have flowers before pine cones?
no, pine trees are gymnosperms and only produce cones, never flowers
What is the pH pine trees?
4 to 6 is the pH of pine trees
Why is Maine's nickname the pine tree state?
It is called the Pine Tree State because it has a LOT of pine trees.
How much should you charge to plant 2000 pine trees?
$700
