Geoecological system of karst
Ilona Bárány-Kevei - (27/1,1998)
The paper presents some results of the karst geo-ecological system research. The first sphere of the karst-ecological system is the karst microclimate in accordance with the microclimatic factors. Macroclimate is responsible for the quantity and intensity of precipitation while microclimatic effects modify the quantity of water infiltrating to the rocks. Microclimate affects the development of vegetation, soil temperature and humidity. Millions of microorganisms live in the soil, changing the components of soil-air through the decomposition of organic materials and through their own metabolism. They also influence the physical and chemical soil properties indirectly. The inner dynamism of soil can prevent extreme changes occurring in the system, it can change, possibly leading to disturbance in the whole system. The changes due to external effects are reversible down to the rock boundary. When they have entered the rock layer, they become irreversible. Water in the rock layer is the transport agent of materials and energy. This water reaches the surface again in karst springs. Another irreversible process, the dripstone degradation can also be due to polluted water.