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Gully erosion can progress through a variety and combination of processes. The erosion processes include incision and bank erosion by water flow, mass movement of saturated or unsaturated bank or wall material, groundwater seepage - sapping the overlying material, collapse of soil pipes or tunnels in dispersive soils, or a combination of these ...
Erosion control is the practice of preventing or controlling wind or water erosion in agriculture, land development, coastal areas, river banks and construction. Effective erosion controls handle surface runoff and are important techniques in preventing water pollution , soil loss , wildlife habitat loss and human property loss.
Creation of the special climate fund that is targeted at controlling gully erosion, flood and land risk and also rainfall issues that can lead to environmental issues. Creation of gully catchment in different states in the area with high erosion and flooding issues in Nigeria.
It is typically used in environments where the gully has a moderate slope (less than 10%), small drainage area, and in regions where flood flows do not typically carry large rocks or boulders. [17] [15] In nearly all instances, erosion control blankets, which are biodegradable open-weave blankets, are used in conjunction with check dams. These ...
Gully erosion occurs when runoff water accumulates and rapidly flows in narrow channels during or immediately after heavy rains or melting snow, removing soil to a considerable depth. [12] [13] [14] Another cause of gully erosion is grazing, which often results in ground compaction. Because the soil is exposed, it loses the ability to absorb ...
Erosion is usually reduced by drop structures, and natural river channel processes, such as channel migration, meandering, and creation of stream pools and riffles, are also reduced. [3] Drop structures can be used for flow control and to stabilize waterways and prevent the formation of gullies .
Headcuts and headward erosion are hallmarks of unstable expanding drainage features such as actively eroding gullies. [1] Headcuts are a type of knickpoint that, as the name indicates, occur at the head (upstream extent) of a channel. [2] The knickpoint, where a head cut begins, can be as small as an overly-steep riffle zone or as a large as a ...
Since erosion plays a large role in soil depletion in this area, it is important to consider fertilization and irrigation when attempting to grow crops. [6] Poorly terminated drain, a major cause of gully erosion. Climate in Nigeria has an extreme impact on the gully formations. For an area that is predominantly dry, the intensity of the rain ...
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