SOIL RESOURCES AND RISK FACTORS IN THE ADMINISTRATIVE TERRITORY OF IBUCANI COMMUNE, NEAM COUNTY

The administrative territory of ibucani spreads on both banks of Umbrari brook, right side tributary of Moldova. It is a territory in which dominate agricultural usage of lands, from which arable terrains detain a percentage of 70 %,pastures 12% and forests 10% of the total. From a geomorphologic viewpoint, the territory belongs to the Moldavian Tableland and extends on two of its sub-units: the Moldova – Siret corridor to the east and the Peri-Carpathian Piedmont Hills to the west. The dominant relief is of cuesta type. On the cuesta reverse dominates a slow evolution, in the presence of sheet erosion. On the cuestas and the upper basin of Umbrari erosion is intense and accompanied by landslides, gully erosion, landfalls, consequence of the presence of loams and loess-like materials that favor the development of erosion processes. The diversity of soil forming conditions has led to the formation in this territory of a soil cover with large areas at the terraces’ level and on the cuesta reverse, and reduced extension areas, more diverse as typology, at the level of the piedmont hills. In consequence, the largest extension is held by Luvisols, with a percentage of 47.59%, followed by Chernisols (22.48%) and Protisols (19.13 % of the territory). On the overall, have been identified eleven risk factors (limitations) that affect the productive capacity of terrains or hardens the life conditions of the population