Straightening or channeling a stream results in a shorter, steeper channel with quicker and more energetic water. This alteration may disturb the stream's equilibrium, resulting in erosion, land loss, increased silt supply, loss of aquatic habitat, and other issues.
The straightening or deepening of a natural stream channel is known as channelization. Streams occur in a variety of forms and sizes. They might be steep, swift-flowing mountain streams or flat, slow-flowing pasture streams.
River or stream channelization is typically done to redirect water for irrigation, drain wetlands/floodplains for agriculture, increase "usable" land, improve river channels for navigation, or prevent floods.
Channelization raises current velocity, preventing water from infiltrating stream banks and allowing contaminants to be filtered out of the water before they reach their ultimate discharge place, severely impacting water quality.
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