Dosbergenov S.,Institute of Soil Science and Agricultural Chemistry
Journal of Arid Land | Year: 2010
The organic carbon and humus content in oil polluted brown and grey-brown soils in Mangyshlak, Pre-Caspian Sea Region, was analyzed from 2000 to 2008. The results indicated that bitumen substances from crude oil pollution deteriorated the soil property, however, the organic carbon content increased significantly. The products of oil pollution changed the composition of carbonaceous substances which formed soil humus, and changed the ratios of the humus components. Residual insoluble carbon increased with the rise of oil organic carbon. The mobility of humus components was significantly increased because of the high oxidation-reduction process in the topsoil, and the humus content and microorganism activity increased. The organic carbon content increased significantly, while it decreased with the distance away from the oil well. The rearrangement of physical, physical-chemical and chemical properties of the polluted soils was significant.
Lapa V.V.,Institute of Soil Science and Agricultural Chemistry |
Seraya T.M.,Institute of Soil Science and Agricultural Chemistry |
Bogatyreva E.N.,Institute of Soil Science and Agricultural Chemistry |
Biryukova O.M.,Institute of Soil Science and Agricultural Chemistry
Eurasian Soil Science | Year: 2011
The effect of lime and organic and mineral fertilizers on the fractional and group composition of the humus in a light loamy soddy-podzolic soil was studied in a long-term experiment. The application of lime increased the content of the agronomically valuable fraction of humic acids (HA-2) by 2.6 times on the average. The application of mineral fertilizers at the rate of N83P61K112 (kg/ha per year) increased the mobility of the humic substances; the application of farmyard manure (12.5 t/ha per) has an opposite effect. In general, various fertilizer systems exerted a favorable effect on the qualitative composition of the humus with an increase in the percentage of humic acids, though the humate-fulvate type of humus was preserved in all the variants of the experiment. © 2011 Pleiades Publishing, Ltd.
Romanova T.A.,Institute of Soil Science and Agricultural Chemistry |
Chervan' A.N.,Institute of Soil Science and Agricultural Chemistry |
Andreeva V.L.,Belarus State Pedagogical University
Eurasian Soil Science | Year: 2011
Principles and methods of studying the soil cover pattern for the inventory, assessment, and rational use of the natural resource potential are outlined. It is suggested that the soil cover patterns should be studied for typified natural systems (territorial units). The latter are different from one another in the composition and pattern of the soil combinations. The typology and hierarchical grouping of soil combinations are developed, and their nomenclature is suggested. The methodology for assessing the soil cover heterogeneity on the basis of a monofactor scale of the degree of the soil contrasts and a modified evaluation of the soil cover compartmentalization with the application of an automated cartographic analysis is described. This procedure has made it possible to gain an integral holistic perception of the geosystems in Belarus. The application of a corresponding database developed in the ArcInfo format for creating maps with information on the morphometric, geomorphic, hypsometric, lithological, and other characteristics of geosystems is illustrated. Special surveys of the soil cover patterns in Belarus were performed on an area of 10000000 ha. Their results are taken into account upon planning the rational nature management. © 2011 Pleiades Publishing, Ltd.