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ABSTRACTThe aim of the study was to assess the effects of different forest stands (Silver fir (Abies alba) and sycamore maple (Acer pseudoplatanus) with common hornbeam (Carpinus betulus)) on the enzymes activities and microbial biomass. The objective was to explore how changes in the detritus inputs affect soil organic matter (SOM) composition. The content of SOM fraction has been compared with soil enzyme activities. The investigation was carried out in the Świetokrzyskie Mountains of central Poland. Twenty investigation plots were selected, including fir stands (10 plots) and maple with hornbeam stands (10 plots). Contents of organic C, N and base cations, pH, hydrolytic acidity, and soil texture were investigated. The content of C and N in the physically separated SOM fractions was distinguished. The study indicated only small changes in soil properties and stabilization of organic matter as a result of different detritus inputs. The maple-hornbeam and fir stands have a similar influence on microbiolo...
Błońska et al. (Tue,) studied this question.