Permafrost Present In Tundra But Absent In Taiga

Why are there no trees in the Tundra region?

Permafrost layer in Tundra is the layer of earth beneath the topsoil that remains frozen during the year and is usually only a few feet beneath the surface. It prevents trees from growing in the tundra because trees need to have deeper roots plus they cannot grow in the frozen ground. Therefore, common plants in tundra are shrubs, herbs, lichens and grass and usually grow in groups and remain closer to the ground for prevention against cold winds. They have a tendency to have shallow roots and flower rapidly throughout the short summertime.The majority of the plants at the tundra are perennials that come back every year from the same root. This allows them to grow throughout the summertime and save up nutrients as they lay dormant for the winter. They also have a tendency to have hairy stems and dark leaves. This assists them in absorbing energy from the sun.Detailed blog at Plants in Tundra

How is solifluction related to permafrost?

Solifluction is a process of mass wasting by frreze & thaw activity mostly found in peri glacial environments,permafrost is ground rock at or below the freezing point or we can say the freezed soil,both the terms are significant and indeed related to each other.As we we edging towards a more warmer climate decade by decade,most of the permafrost areas in siberian region feels an increase in temp by 1.2 degree celsiusresulting in thawing of groundwater which inturns results in creep of mass under impact of gravity.