Why do few trees grow in the tundra?

1 Answer
Apr 5, 2018

The permafrost blocks the penetration of roots needed by trees,

Explanation:

In the tundra the ground under the earth remains frozen, The frozen ground is hard and makes it difficult for the roots to penetrate very deep into the earth. Also frozen water does not diffuse into the roots. Frozen water does not meet the needs of plants for photosynthesis.

The presence of the frozen water ( permafrost ) does not allow the trees to put roots down deep enough to support the amount of growth and photosynthesis necessary for the metabolism of trees.