Geography 2010A/B Lecture 3: Lecture+3 Physical Geography
27 Jan 2016
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Document Summary
Much of the vegetation we see in canada is not natural. Instead, it has been introduced through agriculture and human activity. Major natural vegetation types in canada: forest grassland tundra. Deciduous forests are composed of trees that lose their leaves each winter. The quality of the grass varies with moisture content. Grasslands are only found in the prairie provinces. Xerophyte: a plant that has adapted to low amounts of water. They reproduce by runners (offshoots of the main plant) They are found in arctic and alpine areas. Tundra plants have shallow root systems due to the permafrost environment. The leaves of the plants are waxy in order to reduce moisture loss. A plant that grows in a sideway formation because harsh dry winds desiccate the upper part of the plant. Permafrost forms where the mean annual temperature of the soil is below 0 c. Discontinuous permafrost may form in areas with a northerly aspect.
