Soil, importance

Soil Importance
Fruit and Vegetable Science
K. Jerome

1. THE IMPORTANCE OF SOIL

2. What's the
difference
between soil
and dirt?
wrong place -
dirt

3.  
The importance of soil
Life, civilization 
depend on planet's 
soil and 
water resources

4.  
Shortages cause:
Conflicts
Migration

5. Future  
Soil will become even more crucial
 
World population doubles every 40 years
                                                                
               only 7 percent of earth's 
surface is suitable for agriculture

6.  Soil is non-renewable
resource 
Thin, fragile layer of life-
supporting material 
Supplies plants, animals 
with all resources they 
need 

7. Soil health
Capacity of soil to sustain plant and animal 
growth
Capacity of soil to maintain air and water 
quality
 

8.  
 Soil degradation 
United Nations report, 2001: 
1.75 billion tons of crop soil lost worldwide 
to erosion

9.  Reasons for soil degradation
Erosion
Pollution
Desertification 
Changes in soil chemistry
Increases in salt levels
Loss of organic matter

10.  
We must take it upon
ourselves to practice good
soil management and
protect our soils.
 

11. How much soil is there?
How Much Soil Is There?