How different human activities cause
soil erosion?
•Short Sighted Agricultural
Practices
•Excessive Grazing
•Overuse Of Pe...
How different human activities cause
soil erosion?
SHORT SIGHTED AGRICULTURAL PRACTICES
Short-sighted agricultural practic...
OVERUSE OF PESTICIDES
Chemical pesticides help avert crop losses, but they can also cause
long-term soil damage by destroy...
Soil Erosion
Overuse Of
Pesticides
How soil erosion adversely affect the
environment?
Soil erosion adversely affect –
• Crop Productivity
• Increase of water...
• Plant trees
• Terraces
• No-till farming
• Contour ploughing
• Crop rotation
• Soil PH
• Water the soil
Contour ploughing
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
Soil activity
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Soil activity

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Soil activity

  1. 1. How different human activities cause soil erosion? •Short Sighted Agricultural Practices •Excessive Grazing •Overuse Of Pesticides •Deforestation
  2. 2. How different human activities cause soil erosion? SHORT SIGHTED AGRICULTURAL PRACTICES Short-sighted agricultural practices, such as not allowing fields to lie fallow and ploughing too frequently, contribute heavily to soil loss EXCESSIVE GRAZING Excessive grazing is another major contributor to soil damage, in part because cattle compact the soil, making it less able to retain water. In heavily trampled areas, erosion and drought are often the result. Overgrazing also destroys native grasses, allowing weeds with deeper roots, such as sagebrush, to replace them.
  3. 3. OVERUSE OF PESTICIDES Chemical pesticides help avert crop losses, but they can also cause long-term soil damage by destroying beneficial insects and the micro-organisms necessary to replenish soil nutrients. Pesticide vapour and run-off poison wildlife, both nearby and downstream, and are major polluters of lakes and underground aquifers. DEFORESTATION Deforestation, one of the principal causes, occurs when forested areas are logged or cleared and much of the already thin earth erodes away. The resulting silt clogs rivers, lakes, coast estuaries, and coral reefs, killing fish and damaging aquatic ecosystems. Often the remaining soil can support crops for only a year or two before being unusable. •
  4. 4. Soil Erosion Overuse Of Pesticides
  5. 5. How soil erosion adversely affect the environment? Soil erosion adversely affect – • Crop Productivity • Increase of water runoff • Decreasing the water infiltration • Decreasing the water-storage capacity
  6. 6. • Plant trees • Terraces • No-till farming • Contour ploughing • Crop rotation • Soil PH • Water the soil
  7. 7. Contour ploughing

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