Project funded
by theEU–DGEnvironment
L
andsurfacerelevant
forapplication
Artificial surface
Agriculture land
Forest and semi-natural areas
Wetlands
F
inancialcosts
(C
apital
,
operation
&
maintenance
)
There will be
slightly higher costs
associated with creation of ditch networks
when sediment capture ponds are present, as the volume of material excavated
will be slightly larger than it would be if no ponds were created. Maintenance
costs are associated with dredging of sediment capture ponds.
D
esign
Sediment capture ponds are generally
small scale
(10s of metres). This measure
is most suitable for managed forests in
northern and central Europe
for
which productivity is improved if water can be removed from the landscape.
Sediment capture ponds can be combined with other forest measures including
riparian buffers, continuous cover forestry, peak flow control structures and
overland flow areas.
S
cale
The dense network of forest ditches in
which sediment capture ponds are ty-
pically placed means that each pond
drains a relatively small area.
Sediment capture ponds are
engineered ponds
placed in networks of forest ditches to slow the velocity of water and allow the deposition of suspended
materials. They can also be implemented in other areas. Sediment capture ponds are most useful for managing the effects of ditch construction and maintenance,
road work and final felling.
Case studies:
Rural runoffattenuation in theBelfordcatchment,UK; Sediment captureponds in theLatvianState forests
Sediment capture can also be used
downstream of managed wetlands.
FORESTRY
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