(vi) Rate of New Soil Formation is Extremely Slow: While soils are non-renewable resources over a human time frame of decadal or generational scales, they are renewable on a geological time scale (centennial/millennial). This implies that with the increase in human population of 70 to 80 millions per year and projected to be 10 billion by 2100, restoring degraded and desertified soils over a centennial-millennial scale is not an option. Hence, because of the heavy demands on finite resources, soils are essentially a non-renewable resource, and must not be taken for granted.
