SLM Database

Retention ditches are channels aligned along the contour which are designed for surface runoff management. They improve water infiltration into the ground and prevent soil erosion.

• Compiler: William Akwanyi
• 03/07/2023 3:02 a.m.

The Al Yakloum pond collects runoff from a local catchment and water is led through a channel system alongside a farm road. Sandy particles are captured in a sediment trap before runoff enters the pond. The pond provides water to approximately 5 ha of orchard - which is irrigated through …

• Compiler: Nicola D'Alberton
• 07/07/2022 10:13 a.m.

The infiltration pits are constructed on bare lands with the aim to enhance re-vegetation of plant species. The pits help to reduce soil erosion/land degradation as water is now able to infiltrate through the pits because they are constructed in succession. It also improves land productivity and cover as well …

• Compiler: Matoka Moshoeshoe
• 03/25/2019 1:58 p.m.

Water-spreading weirs slow the flow of water, spread it over a wider area, increase infiltration and reduce erosion.

• Compiler: Dieter Nill
• 09/25/2014 8:05 a.m.

The deepening of the channels has made it possible to control pond and lake recharge, optimise yields and crop growing, and increase the area under cultivation.

• Compiler: Dieter Nill
• 09/24/2014 5:03 p.m.

Small-scale dams are moderately-sized barriers built across valley bottoms to retain water from permanent watercourses or seasonal flows.

• Compiler: Dieter Nill
• 10/07/2014 2:24 p.m.

Embankment dams are built to retain rainwater without totally blocking the flow of water, enabling the irrigation of a part of the plain.

• Compiler: Nina Lauterburg
• 09/24/2014 5:01 p.m.

Lining canals is a powerful way to save irrigation water by minimising seepage losses, and to reduce pumping time and costs.

• Compiler: Dieter Nill
• 09/24/2014 5 p.m.

The role of small dams with weirs is to raise the water table, expand rice growing areas and extend the availability of water in lowland areas to complete the agricultural cycle of lowland areas (rice and vegetable growing).

• Compiler: Dieter Nill
• 09/24/2014 5:01 p.m.

A water reservoir for growing off-season increases the farmed area, yields and production. A second growing season thus becomes possible.

• Compiler: Dieter Nill
• 09/24/2014 5:02 p.m.