Top Ideas for Erosion Control
Soil erosion is caused by both natural and human-made factors that carry away sediments of the earth at far away locations. It is a process where the topsoil, the most nutrient dense part of the soil is transported away, profoundly affecting agriculture. The productivity in croplands are lessened and wetlands and bodies of water become polluted. Although it takes long for soil to erode, and most of the time it goes unnoticed as well, it does occur in such an alarming rate that other disasters happen because of it such as landslides and mudslides among others. For example controlling erosion on construction and mine sites is a challenging process.
Various erosion control measures are being developed to further halt the loss of soil, water pollution, and the destruction of both human properties and wildlife habitats.
Ideas for Erosion Control
The following methods have been developed with soil stabilization in mind. Certain areas suffer from lack of nutrients and undergoing compaction. Here are some ways to stop erosion.
Perhaps one of the cheapest and the most practical way of preventing soil erosion is to increase plants and trees. This method involves the restoration of forests or woodlands that have gone depleted due to massive lumbering. Hills and mountains would greatly benefit from this method. The roots of the plants and trees will hold the loose earth. Careful planting is a must as seedlings might get carried away by the rain. In other areas such as flat lands, soil with rock components could serve gardens and other landscaping purposes. Engineered methods such as turf reinforcement mats or TRMs provide efficient erosion control by strengthening or holding together loose soil until the plants and roots are big enough.
- Artificial barriers
When storms cause heavy rainfall, it washes away soil downhill and sometimes causes flooding. Human-made barriers are made to slow down the rush of water. These may be sand-filled sacks, some timbers, or rocks that would work better to semi-flatlands.
- Embedding stones
More commonly known as ‘riprap’, these are stones reaching up to 8 inches wide. Proper landscaping techniques can have these stones arranged to redirect the flow of water. While it may look unpleasant on their own, plants may be added to soften the appearance.
- Woven fibre rolls
Construction sites would sometimes take place nearby bodies of water or reservoirs. Fibre rolls made of straw, coconut hemp, and other similar materials are assembled into rolls wherein a specific alternating number of spaces are following the slopes’ steepness.
- Man-made terraces
Stair-like formations on slopes with slightly-flat areas are best for vegetation to grow on. Because the water won’t be flowing downwards, the plants will get enough water for nourishment and soil components won’t be going off anywhere. One can use stone, concrete, or other materials to create the walls. Research for the best specifications to create terraces.
- Encased riprap
They are also known as ‘gabions’. Riprap reinforced with mesh wired cages are laid out on shorelines, slopes, and banks to prevent erosion. The strength and longevity if these depend on the wire frames. They are placed at a particular angle to be more efficient.
- Lawn grass
As long as the grass is of good health, it is also one of the best anti-erosion materials that can help stabilise the soil. Any right perennial type of grass spreads and quickly when good compost is also involved. It can be difficult for them to grow on steeper slopes because they can be washed away with water buy being covered by straw will help keep the seeds in place.
Mechanically stabilized earth are engineered with a stronger reinforcement and have been used in place of the conventional concrete walls for years now. They are easier to install and assembles fast as well. These are usually used on dikes, seas walls, and bridges.
- Erosion blankets
They are basically the same as fiber rolls but are laid down flat onto the surface of the sloping oil to slow the rushing of water. To keep them steady on the ground the edges are then secured by being buried in the soil.
- Soil Nailing
This process involves drilling on the slope where steel bars and nails will be positioned to protect the sloping soil from failures. Geotech engineers then assess the depth of the ground where the insertion of the spikes will take place after the drilling procedure.