PHYSICAL AND GEOGRAPHIC CONDITIONS AS ELEMENTS DEFINING SOIL QUALITY IN THE UPPER AND MIDDLE COURSE OF THE BEGA RIVER PUBLISHEDL. NIŢĂ*, D.ŢĂRĂU*, D.DICU *, R.BERTICI*, K.I LAȚO*, Casiana MIHUȚ*, Anișoara DUMA-COPCEA*, Simona NIȚĂ*, Alina LAȚO*, Andreea Alina ABRUDAN** * BUASVM Timişoara **Consiliul Județean Timiș email@example.com
The purpose of the researches carried out is based on current scientific and practical discussions on the accumulation of knowledge regarding physical and geographic conditions as elements defining soil quality in order to elaborate strategic programmes for sustainable management of soil and land resources. The issue addressed refers to an area of 158.259 ha (of which 90.563 ha, 57.22% is agricultural land and 60.323 ha, 38.11% is forest), located in the upper and middle course of the Bega River. This paper provides basic knowledge and methodological elements for the evaluation and characterization of natural and anthropogenic resources, in the hope that the presented information will raise the interest of the decision maker so that in the near future the agricultural research and practice, together with environmental protection, should strive to develop interdisciplinary studies. The studied perimeter belongs to the great Pannonian Depression rather to the Timiș Plain, a plain from the western part of Romania. Over the Pliocene deposits, formed by a succession of clay-sandy, clayey and marly layers, in the lake phase were placed clayey muds. Groundwater in flat areas is 1.50 - 3.00 m deep in the dam area at 3.00 - 5.00 m deep, but in microdepressions at 1.00 - 1,500 m deep. The operation of classifying agricultural land in quality classes based on the assessment grades highlighted a series of limiting factors that influence the production capacity of agricultural land within the researched space among which we mention: granulometric composition (soil texture), the reserve of humus, soil reaction, degree of compaction, excess of humidity, some of which are exemplified by the affected areas.
quality, natural, land, management