IDENTIFICATION AND ANALYSIS BY GRADIENT OF GRASSLANDS FROM THE ALMĂJULUI MOUNTAINS PUBLISHEDMargareta MĂGUREANU , Loredana COPĂCEAN, Luminiţa COJOCARIU None email@example.com
In Banat Montains, the grasslands have a significant influence, on the one hand by the size of the surfaces and implicitly the weight in the structure of the land fund, and on the other hand, by the role they have in the regional economy. Through classical working methods, locating and mapping grassland areas is a complicated process, requiring very large human and time resources, but supplemented by geomatic methods, which offers the possibility of a computerized and "remote" territorial analysis using geospatial data, simplifies this process and further provides significantly superior results. In this context, the purpose of this study can be divided into two research directions: on the one hand, the identification and location of grasslands areas in the Almajului Mountains, and on the other hand, their analysis on the altitudinal gradient, with direct and indirect implications on genesis and evolution of grassland areas. To achieve the objectives of the study, techniques and methods specific to the GIS environment and implicitly geospatial data sets were used. The identification and location of the grasslands surfaces was done by processing the Corine Land Cover database, 2018 edition, and the analysis of the relief of the area, by processing the Digital Elevation Model. The analysis of the grasslands on altitudinal gradient resulted from the spatial, statistical “crossings” between the grassland surfaces and the altitude map. The researches showed that the grasslands are distributed in all subzones of the considered area, an area of great physical-geographical complexity, which also determines differentiations in the structure of the vegetal cover and implicitly in the typology of the grasslands. The gradient analysis showed a slightly higher percentage of grasslands in the hill area (approx. 43%), between 301 - 600 m. The use of geomatic techniques in the analysis of pastoral space allowed both the identification and spatial location of grassland areas, as well and their complex analysis in correlation with relief factors. Therefore, the approach of the grasslands through the GIS technique allows the analysis of discrete processes, difficult to quantify by classical methods.
grasslands, location, quantification, analysis, geomatics.
field crops and pastures