1. SOIL EROSION

2. DEPLETION OF SOIL MATERIALS
•minerals can be exhausted by
overproduction
•soil that is depleted of
minerals become acidic or
sour and causes damage to
crops
•lime and fertilizers are added
to the soil to correct this
condition

3. LOSS OF ORGANIC MATTER
• The organic matters on the
topsoil decays slowly.
• Humans may disturb the this
natural balance by planting &
harvesting crops too
frequently.
• Sometimes wood& native
grasses are burned down
before plowing.

4. EROSION
• a destructive process by which
soil is lost by water & wind
• happens when poor farming
method are applied

5. LEACHING
• When the field is plowed
before planting rain soaks
into the pulverized soil
easily.
• If the material in the topsoil
is not dissolved in water
plants can’t absorb them
thus the fertility of the soil is
lost.

6. SOIL PROBLEMS
 can lead to water problems too

7. WATER PROBLEMS
 Groundwater is depleted by humans through
overconsumption in cities and run-off water.
 too much run-off water results from heavy rains
 deep wells supply drinking water and draw greatly on the
supply of groundwater

8. WATER PROBLEMS
 water problems caused by soil problems:
1. droughts- aftermath of too much rain rushing immediately
to the sea since there are less trees to store water
2. flood- aftermath of denudation
 these result from misuse of soil and its plant cover (due to
deforestation)

9. THANK YOU FOR LISTENING