Why do pines have thiner leaves than other trees?

Question

I mean why do plants from low temperature weather have thiner or smaller leaves or even some kind of fillament, and tropical trees have big leaves?

Answer 1

It has to do with water loss. Pines and other evergreens do not lose their needles during the winter. They don't lose excess water through their thinner needles (which also have waxy coverings). In addition, the needles help snow slide off instead of building up and breaking the branches. It's an advantage for the trees to keep the needles because they get a head start on photosynthesis in the spring and don't have to wait until they grow new leaves.

Generally, tropical trees have bigger leaves because they can afford to lose more water through transpiration. It's a wetter climate, and the trees will be able to replace the water by absorbing water from the ground. The ones with the largest leaves generally grow beneath other trees. These need big leaves in order to absorb enough light to make enough food through photosynthesis. The upper trees block a lot of the light.

Answer 2

Reduced surface area for the wind blowing on it.

Answer 3

Less water content (prevents freezing).

Answer 4

because pines are not other trees.