How long does it take to form?

The time needed to form a soil depends on the latitude:

  • in environments characterized by a mild climate, it takes 200-400 years to form 1 cm of soil
  • in wet tropical areas soil formation is faster, as it takes 200 years
  • in order to accumulate enough substances to make a soil fertile it takes 3000 years.

For these reasons the soil is considered as a non-renewable resource: once it has been destroyed, it is lost forever.

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