Why are erosion and sediment control so important?  Wildfires and erosion can completely devastate areas that serve as homes for people, wildlife and other natural resources. Water sources can also be destroyed through erosion as the sediment often settles into lakes, rivers, and ponds. In countries like America, about one-third of the country’s watersheds could be nearly filled with sediment due to wildfire-caused erosion. This would lead to a reduced water supply for nearby communities and harm the ecosystems in the area. Erosion control is necessary, especially in areas where water supply is far from fire-prone areas.

Erosion can also cause structures to collapse, and every year many people are injured or even killed due to erosion-related events. If a storm or heavy rainfall rolls in after a wildfire, the ground is prone to forming a landslide. This can easily wipe out homes, paved roads, trees, vehicles. Erosion can harm the environment by removing foliage that feeds, houses, and protects wildlife in the area. Animals living in forests and wooded areas destroyed by fire are left vulnerable as they search for new land. Erosion and sedimentation are driven by wind and water. The factors affecting susceptibility to erosion and sedimentation are topography, climate, soil structure, composition and vegetation present. There are different activities that disturb the land and contribute to soil erosion and sedimentation. These include civil construction, farming, grazing, logging, mining and recreational activities. This article answers the following questions factually:

  • What is erosion control?
  • What is sediment control?
  • What is the Global Road Technology (GRT) approach to erosion and sediment control?

What is erosion control?

Erosion is the process by which soil and rock particles are displaced. The displacement can be caused by the effects of wind, water or a manual activity such as construction. Erosion control is the set of practices that focus on inhibiting the erosion process. The aim with erosion control is to stabilize disturbed soil and thus minimize the volume of sediment produced. The emphasis on the disastrous effects of soil erosion has led to different methods of controlling soil erosion. These different means to prevent or control water and wind that can cause soil erosion. For as long as the earth has existed soil erosion has been occurring from time immemorial. When there is an increase in soil erosion, there would be various issues like loss of land, rainfall runoff, reduced soil fertility, lesser groundwater recharge, contaminants in water, sediment flows in river, reduced economic benefits, increased flooding and hardship on people living in both rural and urban areas. These are some of the ways of controlling soil erosion:

  • Vegetation: it is regarded as the simplest and most natural method of preventing erosion. The roots of the plants will stabilize the soil and help in erosion control. 
  • Geotextiles: it helps stabilize the soil in the process preventing soil erosion. When geotextiles are used alongside growing vegetation, it is better and more effective. 
  • Hydroseeding: mixture of water and seedlings with appropriate does so that damaged land can be revegetated with plants that bind the soil to control soil erosion. 
  • Hydromulching: technique that is used to reduce the effects of soil, water and wind erosion through provision of temporary soil cover.
  • Erosion control devices: they can be erected round the area affected by erosion and prevent the water from running off, to stop further erosion. 


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What is sediment control?

Sediment is the by-product of the erosion process, consisting of particles that are displaced in the process. The goal of sediment control is to capture the sediment produced because of erosion. In the case of a construction site, your aim is to capture the maximum amount of sediment leaving your site. Sediment control is a threat to a sustainable ecosystem and steps must be taken to control it. To look at one branch of technologies, control devices used for sediment control include coir wattles, coir rock bags and coir liner. Coir is the processed form of coconut fiber used to produce sediment control products. These products are laid over a piece of land which needs to be protection from soil erosion leading to sediment build-up. They can also be installed at its bottom in applications concerning riverbanks, hills, shoreline and slopes and they help minimize runoffs. The advantage to using coir and coir products is that besides controlling sediment they also act soil-enrichment solution with essential nutrients promoting vegetative growth and recovery. We now look at four different coir products used for sediment control, noting that there are other material options that provide similar functions (such as rock check dams, geotextiles, and gabions. These are:

  • Coir matts: has a woven mesh coir matting and are the most important coir geotextile which is made from different varieties of coir yarn of varying strengths and mesh sizes
  • Coir beds: manufactured through filling bags made from mesh matting with coir fibre and they can be used to control soil erosion leading to sedimentation.
  • Coir logs: are utilized on riverbanks and in areas susceptible to heavy water flow and they play the role of allowing water to drain away whilst performing soil retention.
  • Coir blanket: non-woven products produced through bonding and needling techniques with easily curable polymer products such as PVC or rubber.

What is the GRT approach to erosion and sediment control?

A number of the erosion and sedimentation controls traditionally either rely on difficult to install, long to establish, or rely on capturing sediment. Global Road Technology offers liquid polymer solutions for erosion and sediment control, that are 100% effective within a matter of hours. GRT Enviro-Binder penetrates and binds with soil forming an interconnected 3D network structure with loose granular surface particles. Post drying it creates a durable waterproof layer that binds the surface and prevents erosion. Similarly, although from a different chemical basis, GRT: Soil-Loc provides the ability to penetrate and form a top layer of interconnected polymeric and soil particles, provide a tough, erosion resistant crust.  GRT Nature Plus is key for revegetation needs and also as a nutritive source of phosphorus and nitrogen for germination and strike rate. The environmentally friendly nature of these 3 technologies allows for their application in the most sensitive and diverse range of environments. Global Road Technology offers engineered solutions that are applicable across diverse soil management situations no matter the site complexity. Be sure to reach out for great workmanship and top service rendered unique to your erosion and sediment control needs. 

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