Which outcome occurs when intensive agriculture disrupts pedogenesis of Oxisols?

💡 Explanation

Reduced organic matter stability results because tillage accelerates decomposition via oxidation; this reduces soil carbon, a key binding agent that protects organic matter. Therefore, topsoil erodes quickly, rather than enhanced aggregation occurring because reduced soil organic structure reduces habitat for soil microbiota.

• Which outcome regarding lahars arises when intense rainfall saturates volcanic ash deposits on steep slopes?
• Which mechanism causes anomalously high tsunami run-up following a megathrust earthquake?
• Which outcome occurs when increased chemical weathering of limestone bedrock?
• Which outcome results when agricultural irrigation destabilizes an aquifer?
• Which consequence results when isostatic rebound lags erosion in island archipelagos?
• Which risk increases for unguided rockets launched near the subtropical jet stream?