Write one page summery Stream lab Environment 110

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stream_processes.pdf

Stream Processes

Stream Shape Meandering Straight Braided

•Most common •Snake-like •Moderate velocity •Prominent meander bends

•Uncommon •Linear •High velocity

•On steep slopes •Interlaced island and bar formations •Lots of sediment movement

Stream Velocity

Stream Velocity-

Wabash River • Purple arrows=eroding areas

• Red arrows= depositional areas

Human Modifications

• Dams

• Bank armoring

• Deepening main channel

• Building in floodplains

• Draining wetlands

Importance of Streams • Transportation: Provides easier shipping

• Agriculture: Flooding along streams deposits nutrients in areas good for farming

• Natural resources: Abundant resources including fish, birds, mammals, nutrients

• Support ecosystems