The Gorj District has an agricultural land of 427.579 ha. Of this surface, 78.909.40 ha (19%) is affected by different human activities. In order to identify the soils that undergo degradation in Gorj District as well as the effects of this degradation on soils, during 2008-2009 period there was made an inventory and mapping of the soils degraded by different industries. There was noticed that the main human activities that determine the soil degradation are represented by mining industry, energetic industry and building material industry. The surfaces degraded in this way are as follows:1. Mining industry = 13.509.4 ha of which: surface mining = 13,034.60 ha; oil extraction = 874.80 ha. 2. Energetic industry (dust from power plants) = 50.000.00 ha. 3. Building materials industry (cement dust) = 15,000.00 ha. The total surface affected by different pollution sources in Gorj District = 78,909.40 ha. It was observed that because of these human activities the most affected soils have been the eutricambosoils and luvosoils. The eutricambosoils have been affected on surface of 21,371.08 ha of which 4,381.68 ha by physical pollutionsand 16,989.40 ha by chemical pollution. The luvosoils have been affected on a surface of 23,542.92 ha of which 2,373.42 ha by physical pollution and 21,169.50 ha by chemical pollution. As relief the soil degradation is represented as follows: 38,372.52 ha on slopes, lowlands and terraces and 37,069 ha on ridges and plateau. The paper presents an analysis of the changes induced to soils by human factors and their effect on different soil horizons. It is a valuable tool for elaborating recovery measures of ecological buildup on every soil type and relief form.

mining industry; geomorphology; geological deposits; physical pollution; chemical pollution

Presentation: oral