PROCESSES OF SOIL DEGRADATION AND LIMITATION OF AGRICULTURAL PRODUCTIVITY IN THE UPPER BASIN OF BEGA RIVER PUBLISHEDLoredana COPĂCEAN, Iacob BORZA
In the context of conserving and enhancing soil fertility, a detailed analysis of their degradation processes is required, one that must identified the limiting and restrictive factors of the agricultural productivity, their level of intensity and the area of land affected by their action . This analysis provides an overview of soil degradation processes, and also provides the details necessary to intervene later, using preventive or ameliorative measures. Based on soil studies, prepared by the Office for Pedological and Agrochemical Studies, there was calculated the agricultural surface in the upper basin of the river Bega, To identify soil degradation processes in the upper basin of Bega river, ecopedological indicator included in the Elaboration Methodology of Pedological Studies (Vol. III), were used. Based on these indicators, soil characteristics have been established and also the environmental factors leading to land degradation and low production capacity.The soils that were identified in the upper basin of Bega river represents the result of the joint action of pedogenetical factors (climate, relief, lithology, vegetation, hydrology) . The variety of these factors, at the scale of the researched area, led to a number of peculiarities in the processes of soil formation and evolution. In a wetter climate, under deciduous forest vegetation, on different parental materials and mineralogical composition, on a generally waved relief, soil formation took on different aspects . The production capacity of the land from Bega Upper Basin is diminished by the degradation processes caused either by some of their properties or by environmental factors. Due to the natural conditions of the studied perimeter - mountain and piedmont areas - areas of land are affected in varying proportions by the limiting factors, Soils are subjected to the action of one or more limiting factors. In Bega Upper Basin, the largest land areas are affected by low reserves of humus, unevenness of the terrain, slope and soil reaction. The studied area studied is located in the mountains and foothills of this basin.
soil, degradation, productivitty