The proportion of soil aggregates in dependence on the fraction composition of humic substances
Humic substances (HS) are an important stabilizing element in the formation of soil aggregates.The experiment included 6 soil types (Haplic Fluvisol, Haplic Chernozem, Cutanic Luvisol, Haplic Cambisol, Haplic Planosol, Rendzic Leptosol), each in four types of ecosystems (forest, meadow, urban, and agro-ecosystems).Soil macroaggregates were separate