Why is there more soil found in southern forests than northern forests?

Southern forests generally have a warmer climate with longer growing seasons, which promotes greater vegetation growth and organic matter accumulation. The decomposition of this organic matter is also more rapid in warmer temperatures, leading to richer, more developed soil profiles. In contrast, northern forests often experience colder temperatures and shorter growing seasons, resulting in slower decomposition rates and less organic material, which contributes to thinner, less fertile soils.