Erosion Control Practices Flashcards
the practice of preventing or controlling wind or water erosion in agriculture, land development, coastal areas, riverbanks, and construction
Erosion control
Erosion control helps in following ways:
*sustain or improve crop yields
*reduce drainage costs
*retain nutrients and chemicals
*reduce hazards
*maintain good soil structure
*help improve water quality
Natural and Vegetative Techniques (Erosion control practices)
- Contouring
- Strip cropping
- Mulching\
- Crop rotation
- Zero tillage or dibble tillage
planting along contours or land surface with the same elevation
contouring
alternate planting of 2 or more different crops along contours
strip cropping
placement of crop residues or other materials around the base of plants or throughout the field
mulching
alternate planting of different crops on successive planting seasons
crop rotation
a minimum tillage practices in which the crop is sown directly into soil not tilled since the previous crop
zero tillage or dibble tillage
Engineering and Mechanical Methods (Erosion control practices)
*Terracing
*Protected Waterways
*Diversion channels
*Geotextile
It reduces velocity and increasing time for infiltration
Terracing
method of erosion control by constructing broad channels across the slope of rolling land
terracing
for gullies, streams, rivers
protected waterways
in protected waterways (use of grassed waterways) does what?
increases roughness coefficient
in protected waterways (channel linings) uses what?
concrete, bricks, stone/ripraps
In protected waterways (drop structures) have what?
weir, chute, drop spillway, drop inlet
