Influence of tree species composition to modification of specific phisico-chemical and biological properties of soil
2017
Gere, Richard | Gömöryová, Erika
The main objective of our research was to evaluate the effect of different tree species on some physico-chemical and biological properties of soil at the locality Vrchdobroč (Central Slovakia). The study was focused on two coniferous trees (Picea abies and Pseudotsuga menziesii) and two deciduous species (Acer pseudoplatanus and Fagus sylvatica). Soil samples were taken in three pure stands of each tree species from the O- and A-horizons in five replications. In soil samples, basic physico-chemical (soil acidity and CNS content) as well as microbial characteristics (basal respiration, substrate-induced respiration, catalase activity and microbial carbon biomass) were determined. We observed a significant effect of different tree species on the most soil properties. Interestingly, while P.menziesii showed the most distinct effect in the O-horizon, the soil properties in the A-horizon were affected mainly by A.pseudoplatanus. In stands with P.menziesii we also ob-served the most distinct fall of microbial characteristics from the O to A soil horizon in comparison with other tree species. In conclusion we can claim that according to our results the effect of tree species cannot be divided simply on the effect of broadleaves and conifer trees because within each group the tree species influence soil properties in a different way.
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