Four things cause slope erosion: the amount and rate of rainfall, the steepness or gradient of the slope, the amount and nature of plant cover, and the type of soil and bedrock underneath.
When a raindrop falls it is usually absorbed into the pore spaces of the soil. However, when these pore spaces become saturated the raindrops will either stand on the surface as a puddle or flow downhill. As the water flows downhill it will carry with it soil particles and other material. This is the start of erosion. Tele Textiles a range of offers solutions to tackle the problem:
• TeleGrid® for reinforcing the slope
• TeleNet® for keeping the fine particles in place
• EroNet® for strengthening the vegetation.
The less plant cover and leaf material on the ground, the more open the soil will be to the flowing run-off water.
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