* p <0.05
The modeled values for the TSS fluctuated from 0.1 to 61 kg/ha for the Smugawka catchment (Fig. 4) and from 0 to 580 kg/ha for the Mszanka catchment (Fig. 5). Notably, the Smugawka (Fig. 4) and Mszanka (Fig. 5) microcatchments are mainly characterized by river flow. This is particularly evident in sections with large slopes in the upper part of the microcatchments. In the main drainage watercourse, the modeled P-PO43- values ranged from 20 to 23 kg/ha in the Smugawka stream (Fig. 6) and from 125 to 149 kg/ha in the Mszanka stream (Fig. 7).