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The purpose. To determine regularities of effect of warming of a climate upon fertility of soils and utilization of nutrients by plants. Methods. Systems analysis, field and laboratory probes. Results. The possibility is substantiated of adaptation of fertilizer system and sorbtion of microelements by plants for heightening their resistance in conditions of aridity of a climate. Conclusions. At warming of a climate the directedness of processes of interaction of nutrients with soil varies. Speed of phosphates' saturation increases. In drought years productivity of sugar beet is positively influenced with the high content of mobile potassium in soil.

The contemporary condition of soil cover in Ukraine is characterized. The attention is focused onto widespread degradation processes in soils. The causes that determine the development of these negative processes are considered. The contemporary informational support for the condition of soil cover in Ukraine is estimated. In general, the current available information is of narrow-departmental nature, obtained by different methods and non-correlated monitoring programs. As a rule, it is stored in under-structured databases, incompatible with other information systems; mainly recorded on paper media unusable with modern technologies, whereby such information resources are diffi cult to be compiled together. These disadvantages are strong constraints against consistent usage of materials for evaluation, forecast and management of changes in the soil cover. The Soil Observation program should thereby be combined with Agrochemical Passportization and ecology-ameliora- tive monitoring; in other words, the application of innovative soil-agrochemical methodology is considered. Each individual type of surveys shall complement the others, and taken altogether, they shall constitute a con- sistent Information System, capable of solving the problems of assessing the condition, forecasting, manage- ment, usage and protection of soil resources. The monitoring procedures should be conducted on the basis of a new soil concept in line with unifi ed programs and methods, so as to meet European approaches to the maxi- mum extent. Such a technical composition enables getting information on present-day processes in soils, and is the only combination that actually helps us to “ecologize” our knowledge of soils, which is the leading trend in the scope of global soil-science. Thus obtained results will serve as a State-owned tool which would subse- quently facilitate the use and protection of soil resources all over the country, to be involved in a united global soil-information scope. The attention is focused onto social signifi cance of the information on soils and their fertility in terms of land resources optimization, as well as the formation of sustainable land use in Ukraine.

By results of statistical data, biological degradation of soils is observed in all regions and native zones of Ukraine. It is proved that after ploughing virgin soil and paleocrystic long fallow, irrespective of fertilizer system of crops, in grain crop rotations the general content of humus in arable layer of typical black earth is diminished by 20 -25%. Accumulation of humus will be justified only in that event when it is more effective than other agrotechnical means and methods which improve soil characteristics limiting productivity of cultivated crops.

The purpose. To overview findings of investigation in the role of Ukrainian soils and control over edapic organic carbon in a context of global food safety and stable agrarian production at climate fluctuations. Methods. Theoretical generalization and comparison, abstract-and-logic, monographic, expert, calculationand-analytical. Results. The leading part of Ukraine in formation of global food safety is shown. The tentative estimation of contribution of soils of Ukraine in global problem of deposition of carbon is carried out. Scales of losses of organic carbon because of irrational use of lands are analyzed. Directions of control over procreation of organic carbon in black earth of Ukraine for support/increase of its stores and maintenance of neutral degradation of lands are considered. Offers in plans of action for augmentation of potential of control over the procreation of organic carbon in chernozem soils of Ukraine are stated. Conclusions. At control over organic carbon of soils of Ukraine it is necessary to be guided by increase of potential of cultivated lands on deposition of carbon and reduction of greenhouse effect. Rational use of lands and prevention of degradation of soils can soften consequences of climate fluctuation and raise the level of food safety not only in Ukraine, but all over the world. Sequestration of carbon in soils can raise stability of agrarian production in conditions of climate fluctuation.