Republic of Srpska (RS) covers an area of 24,666 km 2 or about 48.5% of Bosnia and Herzegovina's territory. Spatial and environmental changes accelerated due to dynamic historical period upon the RS formation and the following development period. The extent of these changes can be determined by comparing satellite images obtained from different acquisition periods. By processing images, with the support of geographic information systems, it is possible to create a database that aims to analyze spatial processes in a specific area in order to determine quantitative and qualitative parameters. In this way, the trends of spatial development (e.g. excessive logging, land cover damage, water pollution, etc.) and potentially vulnerable components of the environment can be monitored. The data for Bosnia and Herzegovina were collected from CORINE Land Cover (CLC) database for 39 European countries. The CLC is a project launched by the European Environment Agency (EEA) more than thirty years ago with the aim of collecting, coordinating and ensuring the consistency of information on natural resources and the environment. The goal of the paper is to identify land cover types and determine environment changes in the territory of Republic of Srpska over the period 2000-2018 as a consequence of the land use conversion.

The paper presents the distribution of grassland and forest vegetation in the Republika Srpska, zoning by natural regions and altitude zones and the changes that occurred in the period 2000-2018. The territory of Republika Srpska belongs to three large natural regions of different physical and geographical characteristics, with specific environmental factors that affect the distribution of vegetation. Altitude significantly affects the occurrence and types of vegetation, so a digital elevation model with a 25 m resolution was used for the analysis of vertical zonality, in order to process data on the distribution of grasslands and forests by altitude zones. Copernicus Grassland and Forest databases were used, for the period 2012-2018. Given climate change and increasing droughts, which indirectly affect the quantity and quality of vegetation, monitoring and managing grasslands and forests will be an important challenge for Republika Srpska. The results of the research show that the grassland according to the Copernicus Grassland database occupies 19.7%, and the forest vegetation according to the Copernicus Forest covers 60.1%, which is almost 80% of the territory of Republika Srpska. Grasslands are most widespread in the area of medium-high and high karst fields of eastern Herzegovina. There are more pastures in the lower altitude zones, while natural grasslands predominate in the higher zones. Forests predominate in the central mountain-valley region. Broad-leaved forests dominate at lower altitudes and coniferous forests at higher altitudes. The European program for monitoring the Earth's surface via satellite remote sensing is a new technology, so the results obtained for the territory of Republika Srpska can be considered a novelty, which is the most significant contribution of this paper.

The article discusses the key changes that occurred from 2006 to 2018 in the land fund, demography, housing and road construction within the territorial development of municipal districts and regions of the Perm urban agglomeration. The tendencies of suburban land use under the influence of agglomeration development are reflected in this work. The authors underline the main reasons causing the development problems of suburban areas and propose a conceptual approach to the regulation of land use.