186 Chapter 10: Appendix
Diversion (362): A channel constructed across the slope with a supporting ridge
on the lower side.
This practice will assist in the stabilization of a watershed, resulting in the re-
duction of sheet and rill erosion by reducing the length of slope. Sediment may be
reduced by the elimination of ephemeral and large gullies. This may reduce the
waters.
amount of sediment and related pollutants delivered to the
Fencing (382): Enclosing or dividing an area of land with a suitable permanent
structure that acts as a barrier to livestock, bi game, or people (does not include
temporary fences).
Fencing is a practice that can be on the contour or up and down slope. Often a
fence line has grass and some shrubs in it. When a fence is built across the slope
it will slow down runoff, and cause deposition of coarser
materials re-
ducing the amount of sediment delivered downslope. Fencing may protect
areas which act as sediment traps and filters along water channels and
impoundments.
Livestock have a tendency to
along fences. The paths become bare channels
which concentrate and accelerate runoff causing a greater amount of erosion
within the path and where the
outlets into another channel. This
can deliver more sediment and associated pollutants to surface waters. Fencing
can have the effect of concentrating livestock in small areas, causing a concen-
tration of manure which may wash off into the stream, thus causing surface water
Fence
[ADD DEFINITION]
Fence, Suspension
[ADD DEFINITION]
Fence, Electrical
[ADD DEFINITION]
Field Stripcropping (586): Growing crops in a systematic arrangement of strips
or bands across the general slope (not on the contour) to reduce water erosion.
The crops are arranged so that a strip of grass or a close-growing crop is alter-
nated with a clean-tilled crop or fallow.
This practice may reduce erosion and the delivery of sediment and related sub-
stances to the surface waters. The practice may increase infiltration and, when
there is sufficient water available, may increase the amount of leachable pollut-
ants moved toward the ground water.
Since this practice is not on the contour there
be areas of
from which detached sediment, adsorbed chemicals and dissolved substances
The sod strips
not be
be delivered more rapidly to the
areas these
of
Field Border (386): A strip of perennial vegetation established at the edge of a
field by planting or
converting it from trees to herbaceous vegetation or
shrubs.
Chapter O-l 86: 9197
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