ecosystem, biodiversity, climate change, site, GIS ABSTRACT The adequate biodiversity protection at the species and genetic level is not possible without the adequate site protection. The climate change causes the increase in the air temperature (increased evapotranspiration), decrease in the quantity of precipitation, as well as the deterioration of the soil physical characteristics. The deterioration of the water-air soil characteristics will lead to the deterioration of the structure caused by the decrease of the nutrient content. The protective role of the vegetation will be reduced; the soil erodibility will increase, as well as the number of the wildfires, whereas the site conditions will deteriorate drastically. The global changes also affect the smaller regions, owning to which the monitoring of them is of a particular importance for the changes in the ecosystems. For this purpose we use the satellite photos of the high resolution, and by the use of GIS technology the method of the monitoring of the periodical changes in the ecosystems was developed. The collected data will enable the creation of the model which contains the dynamics of changes in the natural ecosystems. This paper analyzes cadastral municipality Djurašiši. The classification based on EUNIS system of the site classification was applied. By the use of the satellite photos of the high resolution (pixel size 1m) for Djurašiši area the spatial distribution of the sites was defined. By the periodical recording of the characteristic areas in Serbia the spatial distribution of the ecosystems, as well as the changes in their composition and structure, will be monitored. eng info:eu-repo/semantics/article The satellite photos of the high resolution in the definion of the changes in the ecosystems using Soil science Institute Раткнић, Михаило Брауновић, Соња Раткнић, Татјана Бојовић, Милета All rights reserved Proceedings of the First International Congress and XIII Congres in Soil Science of Serbia https://unilib.phaidrabg.rs/o:1577 2013 application/pdf 1049178 bytes