Soil
Erosion
The
detachment and transportation of the fertile layer of soil by water or air. Causes of Soil Erosion
•Large-scale deforestation for meeting commercial as well as day-to-day needs
•Heavy floods in rivers
•Overgrazing by cattle
•Dry violent winds
•Improper agricultural techniques
Effects of Soil Erosion
•Decrease in productivity of land
•Desertification of land
•Reduction in the agricultural land at the banks of rivers
•Deposition of soil in river beds and canals causing diversion of
•their natural flow and hence leading to disasters
Methods of Controlling Soil Erosion
•Reduced tillage
•Contour bunding
•Vegetative bunds
•Strip cropping
•Terracing
•Afforestation on barren land
•Control of overgrazing
•Construction of small check dams
•Promotion of equitable use of water resources
•Prevention of excavation of rocks
There are plenty of reasons to implement some form of sediment control at most construction projects.
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