GEOG 1114 1st Edition Lecture 18Outline of Last Lecture -Characteristics of water -Global water storage -Uneven distribution Outline of Current Lecture -Surface water -Wetlands -Rivers/Streams*Short lecture the first half of class then an in class assignment for the last half Current Lecture Surface Water - .25%Lakes: 2 conditions needed for lakes to develop- 1) Natural basin with restricted outlet 2) Sufficient inflow of water -Most fresh water developed in areas of glaciations-Some Saline- Great Salt lakes: -no natural drainage –Salt builds up -Some develop where Earth’s crust split- Lake Victoria, Africa, Great rift valley-Some develop where sink holes collapse- Sink Hole Lake, Florida -Calcium in limestone- wet environment -Some manmade- Dams/ Reservoirs These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-Hydroelectric Power, municipal water supply, Irrigation, Flood Control, Recreation-Major Environmental Impacts 100,000 dams worldwide -World’s Largest LakesWetlands-Flattish places that are periodically submerged and shallow enough to permit plant growth Swamps- grow treesMarshes- grow grasses and rushes- rice Bogs- water logged soil cold climates- peat; grasses; cranberries; rice Rivers/Streams-Drain land surface-Toward oceans streams smaller than rivers - Drainage Networks – Watershed/Water Basins- organized flow based on topographyIntermittent- carries water only during wet seasons or after rain Vs. perennial- contains water year round - As an agent of erosion and shaper of landforms (Fluvial
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