Soil microbial biomass (SMB) is the most active fraction of soil organic matter and is responsible for nutrient cycling in soils and may predict changes in soil quality long before differences are observable as changes in soil organic C (SOC).
(Soil microbial biomass; is; the most active fraction of soil organic matter) (Soil microbial biomass; is; responsible for nutrient cycling in soils)
Soil microbial biomass Soil microbial biomass
is is
the most active fraction of soil organic matter
responsible for nutrient cycling in soils