Question

what is black soil???? Explain​

Answer 1

Answer:

Black soils are mineral soils which have a black surface horizon, enriched with organic carbon that is at least 25 cm deep. ... The total thickness of black surface horizons ≥25 cm; Organic carbon content in the upper 25-cm of the black horizons of ≥1.2% (or ≥ 0.6% for tropical regions) and ≤20%;

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Answer 2

Black soils are mineral soils which have a black surface horizon, enriched with organic carbon that is at least 25 cm deep.CEC in the black surface horizons ≥25 cmol/kg; and. A base saturation in the black surface horizons ≥50%.