ANALYSIS ON THE LANDSCAPE AND SOIL FERTILITY POTENTIAL IN UPPER AND MIDDLE BASIN OF THE BEGA RIVER PUBLISHEDLoredana COPACEAN, Iacob BORZA
Analysis of the natural environment of a region (landscape, climate, hydrography, hydrogeology, soils, etc.) requires separate treatment of each component and identifying inter-relationships that take place between them In the upper and middle basin of the Bega river there are distinguished several major relief units (mountains, hills and plains), represented by: Poiana Rusca Mountains, the western hills and depressions, high plains and Bega River floodplain each unit and/or subunit with different environmental characteristics (geological, geomorphological, hydrological, climatic or pedological). The analysis was based on the works of scientific literature of the studied region, as well as on observations made on the terrain. To make maps of the relief there were used topographic maps, which were subsequently processed with specific software Geographic Information Systems, the same software was used for mapping the delimitation of relief units Subsequently, there were then overlaid with a map of administrative units, it was therefore obtained an overview of the percentage shared by each landscape unit in the territories. For the climate characterizing, the data used was recorded at the Lugoj meteorological station and also data extracted from the specialty literature. Situation on the land fund, fertility and of arable land classes were based on information taken from OSPA Timisoara, these data were further analyzed according to the specific conditions of the region analyzed. In the scientific literature, there are few works dealing separately the upper and middle basin of the Bega river therefore to characterize this region as a whole, all the subcomponents have been studied. Environmental conditions vary from one unit and/or subdivision to another. As surface, the biggest share belongs to the low hills. The climate of the analyzed region is tiered according to altitude: lower altitude brings higher temperatures and reduced rainfall. Surface waters are well represented, the main river is Bega. The most important lake is Surduc storage lake. Groundwater have different characteristics depending on the relief unit. Soils are specific to the mountain and hill area. Of the total agricultural area, the largest share belongs to arable land and pastures, excepting the communes in the mountain and high hill areas, where the grassland share increases. Most of the arable land is classifies within the III and IV quality class.
: relief, climate, hidrology, soils, environment