Wpływ naturalnej sukcesji leśnej na właściwości gleb w strefie ekotonowej (między lasem i łąką) w Pienińskim Parku Narodowym - wstępne wyniki badań

Inglés. The paper presents preliminary results of research on the influence of natural forest succession on soil properties along the ecotone zone between the forest and meadow in the Pieniny National Park (PNP). The research was conducted on the soils from 14 transects, covering three area types: old forest (L) – young forest succession (S) – meadow (Ł). Phytosociological relevés and the age of succession vegetation assessment on each surface were examined. The data used in our research were acquired using the LiDAR methods – aerial laser scanning (ALS) and terrestrial TLS scan. The research has shown that up to 37% of former agricultural fields or meadows within PNP area have already been seized by natural succession (152.67 ha, 25.2%) or communities that should already be classified as forest (69.13 ha; 11.4%). In the soils under the succession there is still well noticeable boundary between the surface humus horizon (A) and the enrichment horizon (B) on the depth of the ploughing. A slight increase in acidification was found in humus soils under succession in comparison to soils that formed under meadow. The activity of dehydrogenases in soil layers (0–20 cm) was arranged in the following order: forest> meadow> succession. The inverse dependence was found for the content of microbial biomass carbon.

Inglés. soils of Pieniny Mount, dehydrogenase activity, ecotone, LIDAR Mo

4

3-20

15