Botany A Closer Look: Boreal Forest

Discussion in 'Botany' started by junior_smith, Dec 3, 2004.

  1. junior_smith

    junior_smith Premium Member

    Climate:
    -Many composed of metaphoric rocks twisted and raised by the plate tectonics

    - Much of the boreal forest climate is considered humid. However, large areas in western Canada and Siberia receive very little precipitation and fall into the subhumid or semiarid climate type.

    - Precipitation increases during summer months, although annual precipitation is still small.

    - temperature range is larger than any other climate

    - found in the polar air mass region

    - long, very cold winters, and short, cool summers

    - Temperature Range: 41 °C (74 °F), lows; -25 °C (-14 ° F), highs; 16 °C (60 °F).

    - Average Annual Precipitation: 31 cm (12 in).

    - Latitude Range: 50° - 70° N and S.

    - Global Position: central and western Alaska; Canada, from the Yukon Territory to Labrador; Eurasia, from northern Europe across all of Siberia to the Pacific Ocean.

    - Needleleaf, coniferous (gymnosperm) trees are the dominant plants of the taiga biome. A very few species in four main genera are found: the evergreen spruce (Picea), fir (Abies), and pine (Pinus), and the deciduous larch or tamarack (Larix). In North America, one or two species of fir and one or two species of spruce are dominant. Across Scandanavia and western Russia the Scots pine is a common component of the taiga.

    - Podzolization occurs as a result of the acid soil solution produced under needleleaf trees. The main soil order associated with the taiga is spodosol.

    - The Largest Natural Ecosystem on Earth, In North America, the boreal ecoregion extends from Alaska to Newfoundland, bordering the tundra to the north and touching the Great Lakes to the south.

    http://www.blueplanetbiomes.org/climate.htm
    http://www.sierraclub.org/ecoregions/boreal.asp
    http://www.radford.edu/~swoodwar/CLASSES/GEOG235/biomes/taiga/taiga.html

    [Edited on 4-12-2004 by junior_smith]
     
  2. mscbkc070904

    mscbkc070904 Premium Member

    That was interesting I didnt know it was that far across, but isnt it eroding and degrading due to global warming and extreme climate changes?