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Hydrologic Cycle and Watersheds. Hydrologic Cycle Components. Precipitation Infiltration Percolation Runoff Evapotranspiration. Outlet point. Watershed. A basin, drainage or catchment area that is the land area that contributes runoff to an outlet point. Watershed boundary. Watersheds.
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Hydrologic Cycle Components • Precipitation • Infiltration • Percolation • Runoff • Evapotranspiration
Outlet point Watershed • A basin, drainage or catchment area that is the land area that contributes runoff to an outlet point Watershed boundary
Watersheds • We all live in a watershed! • Area of land from which all water drains, running downhill, to a shared destination - a river, pond, stream, lake, or estuary
3 Functions • Captures precipitation – its characteristics influence how much is captured • Stores water once it infiltrates into soil (important to plants) • Slowly releases water into streams, rivers, oceans
Why are watersheds important? • We all live in a watershed • Activities within a watershed impact runoff and water quality of water leaving the watershed • Must manage at a watershed level rather than other boundaries to attain goals related to runoff and water quality