SOIL AND ZOOLOGICAL INSPECTION OF ALLUVIAL PEAT SOIL POLLUTED BY OIL PRODUCTS
The paper explores alluvial peat soil polluted by oil products and estimates the criteria of biological and agrochemical properties of peat soil. The paper reveals their being changed under the influence of oil products. The authors found out that oil products increased the toxicity of peat soils and reduced total exchange base and concentration of labile soil nutrients. This influenced negatively the number of the main groups of microorganisms. The cellulose-fermenting microorganisms were less resistant to soil pollution caused by oil products, their number was reduced in 6.1 times at weak form (from 78.7·104 to 13.0·104), strong form- in 17.1 times (up to 4.6·104). The research found out that microscopic fungi appeared to be the most resistant to oil products; at weak form of pollution their number was reduced in 2.6 times (from 33.6·103 to 13.0·103); at strong form of pollution their number was reduced in 3.7 times (up to 9.0·103). The authors observed 655 soil organisms that belong to 17 species, 14 bloodlines and 6 orders. The springtails and Tenuipalpidae are mostly wide-spread in the investigated areas. Their high number was observed at the safe plots and the polluted ones. This certifies about their high plasticity and low resistance to soil pollution by oil products.