Quantifying pH Buffering Capacity in Acidic, Organic-Rich Arctic Soils

Quantifying pH Buffering Capacity in Acidic, Organic-Rich Arctic Soils

Soil pH buffering capacity correlates with soil water retention in organic-rich Arctic soils, providing a proxy to improve representation of pH buffering in biogeochemical models.
A simple biogeochemical model with fermentation, iron reduction, and methanogenesis illustrates the variability in pH and CH4 and CO2 release with different β over a 60-day simulation (white bars with error represent observation-based simulation).