The concept of ecosystems services has become an important model for linking the functions of ecosystems to human welfare. The aim of this paper is to identify ecosystem services generated by green areas within the urban area, classify and value them. „Ecosystem services” refers to components of nature, directly enjoyed, consumed, or used to yield human well-being (Boyd, Banzhaf 2007). This definition advances the ability to use ecosystem services as a practical measurement tool.
The goal of the study was to identify and estimate the ecological functions of urban parks using the geoecological methods. In the work were analysed: dependence between parks' origin, position in the city and natural landscape's components. The Hyde Park in London, Tiergarten in Berlin, Clara Zetkin Park in Leipzig and Łazienki Królewskie in Warsaw constituted the objects of study. Two kind of parks with different ecological function where shown, one of them with lawn predomination, one with trees predomination. The second one has the most effective ecological functions ( climate, biotic, soils, hydrological, pollution absorption). The results of the work can be extrapolated to others parks situated in valley landscape, in European cities, worm temperature climate, in the zone with deciduous forest.