why soil becomes fallow

Summary
Soil turning fallow due to over harvesting, drought, death of micro-organisms, overuse.
Digital Graphics
Soil turning fallow due to over harvesting, drought, death of micro-organisms, overuse.
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Photos
Soil turning fallow due to over harvesting, drought, death of micro-organisms, overuse.
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Drawings
Soil turning fallow due to over harvesting, drought, death of micro-organisms, overuse.
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Paintings
Soil turning fallow due to over harvesting, drought, death of micro-organisms, overuse.
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