Our aim was to test the correlations of the plant and invertebrate biomass and several soil characteristics on six sites in a nonmanaged and un-grazed Siberian steppe (Russia). The study was done in the Chakasja National Park, in the southern part of the Yenisei-Czulyn basin (54°38’N; 90°15’E). Soil was characterized by its water holding capacity (WHC), loss on ignition (LOI) and standardized soil respiration related to the dry mass of the soil (OCD). Correlations between these parameters were significant (R² = 0.71 to 0.95, P <0.05 or 0.01), as was the relationship between plant biomass and soil activity (respiration).
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