GEO 131 Lecture Notes - Lecture 8: Watershed Management, Sodium Chloride, Credit Valley Conservation

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Any of area of land that drains to a common point. Catches rain and snow, and drains or seeps into marsh, river, stream, lake or ground water. Can track water budget by looking at surplus or deficit of water by looking at watershed. Understanding of watersheds crucial to grasping how human activities can degrade/improve the conditions. Knowing structural and functional characteristics, and how ppl can affect them sets the stage for effective watershed management. Road salt --> storm sewers --> lakes and rivers. Watershed can be viewed as a natural landscape unit, integrated by the water flowing through the system. Can also be viewed as the fundamental unit for effective management of water quality. Location of the stream cross section that defines the watershed is determined by the purpose of the analysis. 36 conservation authorities in ontario (enacted in 1946). Watershed management agencies dedicated to conserving, restoring and managing. 31 in southern o, 5 in northern o.

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