The Influence of Logging Equipment on the Content, Stock and Stratification Coefficient of Elements of the Mineral Nutrition of Plants in the Soils of the Taiga Zone of Karelia

This study was carried out in the territories of Northern Europe, middle taiga subzone Karelia. The paper presents results a an experiment on logging to impact controlled using supervised with controlling cutting (SLCC) and conventional (CL) properties soils (horizons O, E BF) spruce forest 15 years after logging. Virgin (VF) used as control. volume weight soils, contents carbon, nitrogen potassium different soil layers (layers BF), well reserves C, N K their stratification coefficients SRs (SR1 [O:E], SR2 [O:BF] SR3 [E:BF]) were studied. showed tendency increase anthropogenically disturbed (CL SLCC) areas can be measured. obtained data demonstrated that there no sharp change or stocks studied elements between undisturbed (VF). largest noted upper horizons all sites, averaging 35.6, 1.27 0.073 t/ha, respectively. In lower values lower. arranged decreasing order > SR1 SR3. At same time, general trend unidirectional changes SR for carbon noted; somewhat different. marked decrease SOC concentration depth. Higher rates cellulose decomposition observed (CL—69.0 ± 3.6%; SLCC—57.4 3.5%) compared virgin (53.7 3.1%), which is consistent other studies zone. indicate importance more accurate assessment elements, need use tests biological activity.