Which risk increases when prolonged tephra burial inhibits plant growth?

💡 Explanation

Nutrient cycling diminishes because plant biomass inputs and decomposition pathways are suppressed significantly. Reduced bioturbation decreases nutrient mobilization; therefore, the soil nutrient availability is curtailed, rather than increased radiation reflection alone.

• Which effect occurs given that the summer active layer thickness exceeds design assumptions in discontinuous permafrost?
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• Which mechanism causes nutrient upwelling along the western coast of South America?
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