GEOG 102 Lecture Notes - Lecture 12: Clearcutting, Boreal Forest Of Canada, Sustainable Forest Management
Document Summary
Freshwater = 2. 5% of earth"s water supply, most of it is in glaciers while remainder is located in wetlands, lakes, rivers. Saltwater = 97. 5% (can"t be used for agriculture) Quantity and distribution by world region (majority in glaciers so arctic has most, and. North america, mainly canada has the most wetlands). Climate, precipitation = 600 mm annually, infiltrates the ground (ground water). Groundwater: lots of it is found in aquifer (a sub-surface geological formation of impermeable rock that naturally stores water that has infiltration through more pours/permeable soil above it). Impermeable refers to water unable to base through (bedrock). 9% of the country is covered by fresh water in lakes and rivers. Canada has more lakes and inland waters than any other country, also has 7 of the earth"s largest freshwater lakes. 1% of the great lakes is renewed through precipitation. 99% of the water is melt water from the last ice age -> non-renewable portion of the water resource.
