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Błońska, Ewa; Ważny, Rafał; Górski, Adam; Lasota, Jarosław
The Science of the total environment, 06/2024, Volume: 930Journal Article
Deadwood is an important element of forest ecosystems that affects many of its components, including the soil environment. Our research is an attempt to determine the role of decaying wood in shaping the properties of forest soils in mountain ecosystems. The aim of our research was to present the influence of beech deadwood on physicochemical properties and microbiological diversity of soils. The research was carried out in the Baba Góra Massif at its northern exposure. The research plots were established in the altitude gradient at 600, 800 and 1000 m above sea level. On each plot, samples were taken from decaying wood, from the soil directly under the decaying log, and a soil sample 1 m from the log as a control. We determined the basic properties of the samples, that is pH, C and N concentration and lignin content. The enzymatic activity and additionally, the taxonomic composition of soil bacterial and fungal communities was determined in the collected samples. Our research indicates the important role of decaying beech wood in shaping the properties of forest soils. We noted a positive effect of decaying wood on the properties of the tested soils. Soils affected by deadwood were characterized by significantly higher pH, C and N concentrations compared to control soils, regardless of their location in the altitude gradient. Additionally, we found that soils affected by decaying wood are characterized by a different composition of microorganisms regardless of their location in the altitude gradient. In control soil the fungal and bacterial alpha diversity were lowest compared with the deadwood and soil under the influence of deadwood. Our results may have practical applications in the management of forest ecosystems. The presented results indicate the possibility of leaving deadwood in order to improve its basic physicochemical properties and increase microbial diversity. Display omitted •Decaying wood affects pH, C and N content in soils.•Enzymatic activity is a good measure of changes occurring in soil under deadwood.•Soils affected by deadwood are characterized by different microorganism composition.•Decaying wood effect is more visible at the lower positions of the altitude gradient.
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