Within a single stream we can often recognize three different channel types. These unique channel types develop in response to changes in stream velocity, sediment texture, and stream grade. The high flow velocities found in these streams are the result of a steep grade and gravity. Within these stream systems, erosion is a very active process as the channel tries to adjust itself to the topography of the landscape.
Deposition occurs primarily during periods of low flow.
As a result, floodplain deposits are very limited, and the stream bed is very transient and shallow. Upper reach of a stream in the Rocky Mountains, Canada. This type of stream channel often occurs further down the stream profile where the grade changes from being steep to gently sloping. In a braided stream, the main channel divides into a number of smaller, interlocking or braided channels. Braided stream channel.