Regional Monitoring of Natural Environment 2002, No 3, 31-43
DIFFERENTIATION OF SIZES AND QUALITIES OF STEMFLOW WATERS IN CHOSEN FOREST ECOSYSTEMS IN THE ŚWIĘTOKRZYSKIE MOUNTAINS
In the period comprising the years 2000–2001 an investigation was carried out into the sizes and qualities of stemflow waters. On the basis of calculations with the use of coefficient FR, higher values of this coefficient were found in the case of the largest diameter trees, both in case of deciduous and coniferous species. The recorded values of the coefficient ANCaq showed unambiguously two kinds of industrial influence on the chosen geoecosystems. The geoecosystem of Malik Hill is under the influence alkaline ambient concentration, while the geoecosystem situated in Świętokrzyski National Park is influenced by acid ambient concentration, caused, among others, by remote transportation. This is indicated by registered ANCaq values, both in direct fall and stemflow waters. On the basis of the investigation significant differences were found in the size of deciduous tree stemflow water on both investigated sides in comparison with coniferous species. In the chosen geoecosystem in Świętokrzyski National Park in the investigated period, the average beech stemflow was 22.9% of direct rainfall, whereas in the geoecosystem on Malik Hill it was only 14%. A little lower values were recorded for hornbeam – 11.2%. In the case of coniferous trees fir stemflow was on average 2.0% of direct fall, while pine stemflow was 0.5%.