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5.3 Soil Degradation & Conservation (Unsustainable agricultural…
5.3 Soil Degradation & Conservation
Soil degradation
Types of processes
Take away soil (erosion)
Infertile for use
Causes from anthropological factors
Deforestation
Unsustainable agriculture
Overgrazing
Unsustainable agricultural techniques
Growing in rows with uncovered soil in between
Plowing in direction of slope
Removal of crops after harvest
Irrigation (salinization)
Monocultures
Excessive use of pesticides
Urbanization
Food productions
Takes up more land
Eliminates biodiversity
Deteriorates soil quality
Smaller land usage
Allows time for soil to recover compared to commercial production
Soil Conservation
Addition of soil conditioners
Breakdown of organic matter
Acid precipitation
Wind Reduction
Improved irrigation techniques
Effects of commercial food productions
Benefits of subsistence farming