Summary: The Canadian Watershed System

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We begin by examining the effects of natural resource development upon one of the most critical components of watershed systems altogether, the water itself. Water is essential for all living organisms, and it is highly valued by Canadians. In a 2009 Nanos research poll, it was found that 61.6 percent of Canadians believe that retaining the integrity of Canadian freshwater supply is the most important natural resource issue that this country will face in the future. As industrial disturbances increase throughout Canada’s northern forests, the risk of potential damage is increasing within affected watersheds. Alteration, typically induced by increased inputs of nutrients, sediments, and contaminants, can have significant negative impacts upon …show more content…

The industrial activities of both require the removal of forest vegetation in order to explore or gain access to extraction sites. The proximity of cut blocks, well-sites, or mines to hydrologic systems will determine the magnitude of the impact. After a significant disturbance event, such as large scale removal of vegetation from a landscape, the ability of the landscape to resist erosion is severely reduced. As a result, large amounts of sediments and nutrients that were previously held and utilized by the natural vegetation communities present enter the local hydrological system. After a disturbance event, typically large flushes of nitrogen, phosphorus, and potassium are observed entering local hydrologic systems (Richardson, 2008 and Webster et al., 2014). Alongside this nutrient flush, greater sediment deposition also occurs. This increased sediment load has a significant effect upon stream turbidity, reducing stream clarity and the ability of light to penetrate to lower depths. With the increase in stream turbidity, an increase in temperature of the hydrologic system can be observed. The darker colouration of the stream, as a result of the deposition, results in increased absorption of solar

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