Geochemical Versus Climatic Controls on Soil Organic Carbon

We measured SOC and geochemical properties in surface (0 – 10 cm) mineral soil at 198 forested sites across the Boreal Plains, Boreal Shield, and Taiga Shield ecozones in central Canada. We expanded the analysis to include soils from temperate forests in the Mixedwood Plains ecozone of southeastern Canada as well as published data from natural shrublands and grassland.