Changes

Natural ground catchment and Open water reservoir

2 bytes removed, 23:59, 17 April 2012

→‎Maintenance

====Maintenance====

Siltation is probably the greatest risks for risk of failure with ponds and dams. The idea is to keep silt out in order to reduce the need for subsequent desilting, and to have desilting mechanisms and institutional arrangements that actually work.

# Keeping a good cover of indigenous grasses in the run-off area seems to prevent silt build-up. Kambiti Farm in Kitui District provides a good example of previously degraded land being managed and where open dams did not silt up due to pasture management. Contour lines with trees or grasses in the runoff area also work.

# If the inflow channel is defined, silt traps can be tried out to reduce silt load as is done with Charco dams in Tanzania. In this case, stones laid across the channel form mini dams and perennial vegetation can be grown between these mini dams to reduce flow velocity of water, thereby encouraging silt deposition.

• ← Older edit
• Newer edit →

Winona

Akvopedia-spade, akvouser, bureaucrat, emailconfirmed, staff, susana-working-group-1, susana-working-group-10, susana-working-group-11, susana-working-group-12, susana-working-group-2, susana-working-group-3, susana-working-group-4, susana-working-group-5, susana-working-group-6, susana-working-group-7, susana-working-group-8, susana-working-group-9, susana-working-group-susana-member, administrator, widget editor

30,949

edits