A
ditch is a small to moderate depression created to channel
water. A ditch can be used for
drainage, to drain water from low-lying areas, alongside roadways or fields, or to channel water from a more distant source for plant
irrigation. A
trench is a long narrow ditch. Ditches are commonly seen around
farmland especially in areas that have required drainage, such as
The Fens in eastern England and the
Netherlands.