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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.
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 ...
Tillage erosion is the soil movement and erosion by tilling a given plot of land. [3] A similar practice is contour bunding where stones are placed around the contours of slopes. Contour plowing has been proven to reduce fertilizer loss, power, time consumption, and wear on machines, as well as to increase crop yields and reduce soil erosion.
The board approved the project on May 8, 2012. It commenced operation on September 16, 2013, with the appointment of Amos Abu, Ruth Jane Kennedy-Walker, and Grant Milne as team leaders, the Federal Ministry of Environment as the implementing agency, and a total project cost of US$650 million and committed amount of World Bank of US$500 million.
Splash erosion is generally seen as the first and least severe stage in the soil erosion process, which is followed by sheet erosion, then rill erosion and finally gully erosion (the most severe of the four). [6] [7] In splash erosion, the impact of a falling raindrop creates a small crater in the soil, [8] ejecting soil particles. [9]
No-till farming (also known as zero tillage or direct drilling) is an agricultural technique for growing crops or pasture without disturbing the soil through tillage.No-till farming decreases the amount of soil erosion tillage causes in certain soils, especially in sandy and dry soils on sloping terrain.
Surface runoff can cause erosion of the Earth's surface; eroded material may be deposited a considerable distance away. There are four main types of soil erosion by water: splash erosion, sheet erosion, rill erosion and gully erosion. Splash erosion is the result of mechanical collision of raindrops with the soil surface: soil particles which ...
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 ...