The total microbial biomass (dry wt) in all soil horizons comprises 6
to 22 ton/ha. By their microbial biomass pool, the soils studied appro
ximate zonal soil types but rank below pears. In soils under study, mi
croorganisms are mainly represented by fungal mycelium and spores (91
- 98% of the total microbial biomass). Fungal biomass is abundant thro
ughout the soil profile, with a peak in the middle soil horizon rather
than in the uppermost one; this is connected with the humidity regime
peculiar to these soils.