Watersheds and Land Use Impact on Water Quality
Explore the concept of watersheds, their boundaries, water runoff, and infiltration, and how different land use types within watersheds can influence nutrient input. Discover the impact of water flow on ecosystems and marine life, emphasizing the importance of responsible land use for maintaining water quality.
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Presentation Transcript
The Watershed Game: Land Use and Water Quality
What is a watershed? What do you notice about the flow direction of water over your land (playdough) molding? Dough Your Molding
What is a watershed? (http://www.cacaponinstitute.org/Watershed/What_Watershed.html) Watershed Boundary (Catchment Area): an area of the earth s surface in which all the water that is caught in this area drains to the same point
Watershed Runoff and Infiltration As water flows from land to nearby river or stream .. It will carry stuff from the land (http://www.cacaponinstitute.org/Watershed/What_Watershed.html) Some of that water and stuff may infiltrate soils and enter into groundwater (http://www.cacaponinstitute.org/Watershed/What_Watershed.html)
Ecosystem Response How might what is running off of the land impact what is living in the water? (http://www.cacaponinstitute.org/Watershed/What_Watershed.html) What may be in the water?
Ecosystem Response Tiny Marine Plants Photosynthesize
Estuarine Response Nutrients
The Influence of Land Use/ Land Cover What are some common land use types within watersheds? How might these different land use types influence nutrient input? Land Use Type Effect on Nutrient Input Natural Vegetation Agriculture Urban/Developed
0 4 8 12 20 24 28 16 Nutrient Concentrations
Impervious Surfaces Natural Vegetation Agricultural Land Atmospheric Nitrogen Beaker 1 Beaker 2 Beaker 3
