Importance of Erosion Control Services
Each year an estimated 80 million tons of sediment wash into our lakes, rivers and waterways from construction sites. Many of these sediments contain harmful chemicals that can damage fish and other wildlife.
Sediment erosion is the wearing away of rock and soil particles by gravity and a moving transport agent like wind, water or ice. It differs from weathering, which is the breaking apart of rocks into fragments without any movement. Erosion can also occur when a rock’s physical properties change without changing its basic chemical composition, as in the case of physical weathering, such as when a stream’s turbulent flow erodes sand along its banks.
When the velocity of wind or water slows, eroded material becomes deposited in a new location, creating a sandbar, gravel bar or delta. The Yellow River in China, for instance, gets its rich, fertile loess from eroded and wind-blown sediment that accumulates at the river’s banks and bed.
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