BIOLOGY 2F03 Chapter Notes - Chapter 2: Biome
27 Nov 2015
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Top of globe, northern part of russia, south of arctic. Permafrost (layer of soil that stays frozen during summer) Solifiluction: soil moving down the slopes because of annual freezing and thawing, water activity and gravity. Thin, acidic and low fertile soil, and thick, organic high fertile soil. Nutrients found in the thick layer of plat litter that carpets forest floor. Dense, shallow roots to tap directly into the nutirles in soil. Explored and extracted oil, natural gas and diamonds. Global warming allows permafrost to melt, releasing stored co2 in soil to the atmosphere effects = unknown. Ancient cave painting revealed they used to eat animals in the. Deforestation: high demand for lumber and pulp. Plants developed short, strong stem to protect against winds. Animal: reindeer, caribou, musk, ox, bear, wolves. Forest floor is moss and other plants: homes to diversity of microorganisms.
