|
|
|
For deposition to occur,
sediment load must exceed transport capacity.
|
|
Deposition, including
fraction of sediment load) in a terrace channel will be much less when little
erosion occurs on inter-terrace interval.
|
|
Transport capacity decreases
with grade of terrace channel and runoff rate in channel.
|
|
Deposition enriches the
sediment load in fines.
|
|
The amount of deposition
depends on the fineness of sediment coming into terrace channel.
|
|
For example, deposition will
be less in a terrace where a grass strip immediately adjacent to the terraces
induces significant deposition.
|
|
Maintenance required because
of deposition. Otherwise terrace
channels fill with sediment.
|