Whats a treeless region in the north with little rainfall?

Question

Whats a treeless region in the north with little rainfall?

Answer 1

The Arctic Tree Line

The furthest north in the Northern Hemisphere that trees can grow; further north, it is too cold to sustain trees. Extremely cold temperatures can result in freezing of the internal sap of trees, killing those trees. In addition, permafrost in the soil can prevent trees from getting their roots deep enough for the necessary structural support.

Answer 2

Tundra

Answer 3

tundra

the layer of frozen ground is called the permafrost. you will get that question when you talk about that biome.

Answer 4

Deserts, Tundra, Mountain tops, and the arctic are all places in the northern hemisphere that don't have a lot of rainfall or many trees.  There is a tree line on mountains where trees won't grow at any higher elevation.  Tundra’s, Deserts and the Arctic have almost no trees and very little precipitation.

Mesquite and Joshua trees are some of the few species that live in the desert.  No species lives in the arctic and only a few evergreens, if any, would live on the tundra.

According to Wikipedia:  http://en.wikipedia.org/wiki/Tundra

"In physical geography, tundra is an area where the tree growth is hindered by low temperatures and short growing seasons. The term "tundra" comes from Kildin Sami tūndâr 'uplands, tundra, treeless mountain tract'. There are two types of tundra: Arctic tundra (which also occurs in Antarctica), and alpine tundra. In tundra, the vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Scattered trees grow in some tundra. The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree line or timberline."

According to Wikipedia:  http://en.wikipedia.org/wiki/Tree_line

"The tree line or timberline is the edge of the habitat at which trees are capable of growing. Beyond the tree line, they are unable to grow due to inappropriate environmental conditions (usually cold temperatures, insufficient air pressure, or lack of moisture).

At the tree line, tree growth is often very stunted, with the last trees forming low, densely matted bushes. If it is caused by wind, it is known as krummholz formation, from the German for 'twisted wood'."

Check out all the locations that don't have trees growing in them; from New Hampshire, at 38,000 to the Olympic Mountains at 5,000 feet.  The tree line varies with moisture and air pressure.