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Soil ImportanceFruit and Vegetable ScienceK. Jerome
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THE IMPORTANCE OF SOIL
What's the difference between soil and dirt?
wrong place - dirt
The importance of soil
Life, civilization depend on planet's soil and water resources
Shortages cause:
ConflictsMigration
Future
Soil will become even more crucial World population doubles every 40 years
only 7 percent of earth's surface is suitable for agriculture
Soil is non-renewable resource
Thin, fragile layer of life-supporting material
Supplies plants, animals with all resources they need
Soil health
Capacity of soil to sustain plant and animal growth
Capacity of soil to maintain air and water quality
Soil degradation
United Nations report, 2001:
1.75 billion tons of crop soil lost worldwide to erosion
Reasons for soil degradation
ErosionPollutionDesertification Changes in soil chemistryIncreases in salt levelsLoss of organic matter
We must take it upon ourselves to practice good soil management and protect our soils.
