The values of the metabolic quotient in soils of natural cenoses (fore
st, meadow), agrocenoses, and also in forest litter are compared. The
metabolic quotient depends on the succession of periods of drying and
wetting and reflects the intensity of processes of decomposition of or
ganic matter in the soil. The metabolic quotient in soils of natural c
enoses at optimal temperature and wetness fell into the range of 0.1-0
.2.