QUALITATIVE EVALUATION OF AGRICULTURAL LAND BY METHODS BASED ON GIS TECHNIQUES. LENAUHEIM CASE STUDY, TIMIS COUNTY, ROMANIA

This study assessed the quality of agricultural land in the area of Lenauheim, Timis County, Romania. Analog maps (1:10,000 scale) processed by GIS techniques (vectorization, digitization) were used. In relation to the 6 indicators taken into account, the studied area was characterized: Indicator 4C - Classes of average annual precipitation corrected in relation to the slope and permeability, 2 classes were found (0575 and 0650); Indicator 14 - Degrees of soil gleic status, 5 classes were found with high value for class 2 - low soil gleic level, 37.52%; Indicator 23A - Soil textural classes, 5 textural classes were found, between sand - clay and clay, with a high share of the medium clay class (42 - clay sand-clay, 92.01%); Indicator 39 - Depth classes of the groundwater level, 5 classes of groundwater were found (class 2 - shallow depth 2.01-3.00 m, 49.54%;); Indicator 44 - Classes of the degree of soil compaction, 4 classes of compaction level were found (class +5 - low compacted (1-10%), 75.51%); Indicator 144 - humus reserve class (in layer 0-50 cm), 6 classes were found (class 225 - very high humus reserve 201-250 t/ha, 81.60%).