Hydrologic Cycle and Watersheds - PowerPoint PPT Presentation

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Hydrologic Cycle and Watersheds

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  1. Hydrologic Cycle and Watersheds

  2. Hydrologic Cycle Components • Precipitation • Infiltration • Percolation • Runoff • Evapotranspiration

  3. Outlet point Watershed • A basin, drainage or catchment area that is the land area that contributes runoff to an outlet point Watershed boundary

  4. 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

  5. 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

  6. 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