Soil erosion control measures
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Transcript of Soil erosion control measures
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Presented By:
Krishna Vala
Urmila Parmar
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What is Erosion control
Erosion control is the practice of preventing or controlling
wind or water erosion in agricultural land development, river
banks ,coastal areas, and construction.
The three main principles:
Use land according to its capability.
Protect the soil surface with some form of cover.
Control runoff before it develops by an erosive force.
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1 Vegetation
2 Contour Farming
3 Build retaining walls
4 Wind Breakers
5 Conservation tillage
6 Mulching
Simple five Solutions to Prevent Soil Erosion
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1. Vegetation
The simplest and most natural way to prevent erosion
Plants establish root systems, which stabilizes soil and preventssoil erosion.
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Water management mechanisms:
Transpiration is the process in water is evaporation fromaerial parts, such as leaves, stems and flowers.
Water is necessary for plants so amount of infiltrate watertaken up by the roots.
The root system abstract water from the soil which decreaseerosion by water
Soil Stabilization:
The plant root system bind the soil at the surface.Increase strength of the soil.Soil erosion by runoff water and wind is decrease
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2. Contour Farming
Contour farming or Contour plowing or Contour bunding is the
farming practice of level rows around a hill, as opposed to
farming up and down on the hill.
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It reduce :-
(1)Amount and
(2)Velocity of water moving across the soil surface
or hill surface
The water break allows more time for moving the water byinfiltrate into the soil.
Can reduce soil erosion by as much as 50% as compareuphill/downhill farming
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3. Build retaining walls
A. A retaining wall is a structure that keeps soil, rock and
water in place so that it won’t be washed away from the
rain.
B. The retaining wall is to one of the purposes prevent soil
is eroded by wind, rain and flowing water, but in most
likely to be due to the wind and the rain.
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Retaining walls
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4. Wind Breakers
Field windbreaks are linear planting of trees/plant
designed to reduce wind speed in open fields, preventing
soil erosion and protecting crops from wind damage.
Field windbreaks are typically planted in multiple rows
perpendicular to prevailing winds.
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Windbreaks
Reduces soil erosion from wind.
Increased relative humidity.
Reduced evaporation and.
Increased soil moisture.
Protects crops from wind damage.
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Wind barriers reduce the speed of wind and soilcarrying ability of the wind. Tree windbreaks protectan area about 10 times their height.
Grass wind barriers are more flexible and can bepushed down by high winds, reducing the protecteddistance to 5 to 7 times the barrier height.
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Conservation tillage
Conservation tillage is method of soil cultivation that
leaves of the previous year’s crop residue (such as
corn stalks or wheat stubble) on fields before and
after planting the next crop to reduce soil erosion and
runoff, as well as other benefits such as carbon store
in soil.
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Mulching
In a mulching a material placed on the soil surface to
maintain moisture, reduce weed growth, reduce soil
erosion and improve soil conditions.
Mulching can help to improve crop yield and optimise
water use reduce soil and water erosion.
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Grass Clippings,Small Leaves,
Wood Chips,Pine Needles, Banana Leaves, Palm Fronds,
Coconut Husks,Branches.
Examples of Organic Mulch:
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1.BLACK MULCH
Doesn’t allow sunlight to pass,hence arrests the weed growth.
Examples of Inorganic Mulch:
2. CLEAR & TRANSPARENT MULCH
o Allows sunlight to pass & weeds grow.
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