soil degradation for environmental science students

1. BY IRFAN SAFI
REG ENV120202008
FREOM 3RD SEMESTER
ENVIRONMENTAL
SCIENCES
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2. SOIL
 HEALTHY SOIL:
 Soil health can be defined as a soil's ability to function and sustain plants, animals
and humans as part of the ecosystem.
 There are five main factors that impact the health of the soil.
 Soil structure
 Soil chemistry
 Organic matter content
 Soil biology
 Water infiltration, retention and movement through the profile
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3. SOIL
 Healthy Soil May Contain The Following Components :
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4. SOIL DEGRADATION
 Soil degradation is define as a change in soil health status resulting a
diminished capacity of the ecosystem to provide goods and services
 Soil degradation is the inability of soil to support the growth of crops
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5. Compare healthy soil and degradable
soil
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6. SOIL DEGRADATION
 Factors responsible for soil degradation are:
I. Deforestation
II. Rain wash
III. Land slides
IV. Floods
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7. Types of soil degradation
wind water physical chemical
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8. How we can Restore Degraded Soil?
1. CONTOUR BARRIERS
 which intercept downslope flowing water and soil particles.
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9. Cont.…….
2. SHELTER BELTS
High speed
air comes
Speed
becomes
slow not
harmful for
copes
Speed decrease
by this big trees
Dangers for copes
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10. Cont.….
 ROCK DAM
 Slowdown water
 To decrease the move of soil with water
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11. Cont.….
 Mulching
 The process of covering the open surface of the ground by a layer of
some external material is called mulching
 For Moisture Retention: By blocking the light, mulch helps your soil retain
more moisture so you have to water less often.
For moisture
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12. Importance Of Preventing Soil
Degradation
 Soil conservation is important for sustainability
Simply put, without soil conservation, soil erosion would increase. ... Soil is
essential to food production. Crops need soil to grow, and farm animals
need vegetation for feed. Conserving soil can help address food insecurity
and promote healthy communities.
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13. ANY QUESTION OR ANY SHADOW OF
QUESTION
PLEAS MENTION SLIDE NUMBER AS WILL AS
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