Regional Monitoring of Natural Environment 2003, No 4, 99-106
SPATIAL DIFFERENTIATION OF THE THROUGHFALL IN THE FIR-BEECH FOREST STAND IN THE CENTRAL PART OF THE ŚWIĘTOKRZYSKIE MOUNTAINS
Due to unequal distribution of the precipitation penetrating through tree crowns, the experiment aiming at identification of the spatial distribution of the precipitation reaching soils in a forest geoecosystem of the central part of the Świętokrzyskie Mountains. The research was carried out from 1st August to 31st October 2002.
The research carried out in the examined geoecosystem revealed a significant participation of humid deposition in quantity of water that reaches the forest bottom in a form of the throughfall. The intensity of this process is influenced not only by the species composition but also by configuration and topography of the area and prevalent meteorological conditions. The spatial variability of the hydrogen load delivered to soils shows that there exist areas in the forest bottom which are subject of acidic deposition. The quantity of this deposition significantly differs from the average level. The highest loads under the fir-tree crowns contribute to the fastest acidification of soils in the tree trunk surrounding.
The distribution of parameters obtained during the research shows the need of elaborating a detailed chart of spatial differentiation of the throughfall.