GGR227H5 Lecture Notes - Lecture 11: Canadian Arctic Archipelago, Salix Herbacea, Arctic Circle
Document Summary
Which of the following municipalities is located closest to the geographical centre of canada: winnipeg, mb, regina, sk, baker lake, nu, churchill, mb. Shows that half of canada"s land mass is in the arctic. Includes high and low arctic and sub arctic: boundary b/w arctic and sub arctic is the treeline, the treeline roughly follows the 10 c july isotherm, arctic ecosystems also exist south of arctic circle (66. 7 degrees n) Northern arctic ecoregions: canadian arctic archipelago, more polar deserts with some oases, mountainous in the east, flat topography in the west. Large area covered with ice caps and glaciers. Large carbon stores: extensive areas of wetlands and lakes (lowlands, near or north of treeline. Includes parts of labrador; n. quebec, manitoba, nunavut, nwt and yukon. Arctic biomes: arctic ecosystems include desert, tundra, taiga, freshwater and marine ecosystems, each have features that are unique to polar regions.
