No 3 (2011)

The analysis of ecological-floristic and some of the geomorphological features of islands in delta of the Northern Dvina river is executed. The influence of a microrelief of the island on the projective cover degree of dominant species is established.

This paper introduces a new technology of ecological status of river ecosystems assessment in the presence of man-made burden of treatment facilities. The technology of ecological risk assessment includes:identifing the referent of the biota and its response to pollution; the construction of dose response determination based on these values of critical loads on the ecosystem. The final stage of this process is the calculation by using GIS technology magnitude of risk and its comparison with the acceptable values. It is shown that in a selected area of the river ecological risk is not acceptable (risk > 10%, while acceptable risk ≤ 5%). This implies a disappointing forecast for the functioning of the ecosystem over the next 50-100 years.

Polymorphism active nucleus organizing regions (NOR) chromosomes in population of aboriginals of Kursk area in the conditions of isolation in distance on a silvering method NOR (Howell W.M is estimated., 1978). The general level of a functional condition nucleus organizing regions chromosomes in Kursk area has appeared 19,46 ± 0,13 c.u. at small presence NOR with the sizes 0 and 4 c.u. in the conditions of isolation of races-standings. Between the distance dividing the birthplaces of ancestors, and transcriptional activity NOR dependence is found out in surveyed both floors.

Presented eco-physiological mechanisms and evaluation of the effectiveness of the method of adaptation to intermittent normobaric hypoxia on these changes in oxygen metabolism in tissues of patients with coronary heart disease and hypertension. It is shown that hypoxic treatment improves the kinetics of oxygen metabolism of patients and severity of positive dynamics of indicators depends on etiology, age and disease duration.

Discussed is the structure of tourist-recreational space. Models of the organization of tourist-recreational complexes is developed and examples of their distribution is presented. Functional zoning is made for example Altay Saian mountain region

In article results of complex research of ecological and biological bases of reproduction of fertility soil are resulted. Action biological products and microfertilizers on modular structure, physical and chemical properties, a content of forms of nitrogen and organic substance in soils are studied.

There is a comparative analysis of pollution of landscapes by contaminants adjacent to the strong thermal power stations and busy highway. The damaging effectiveness of emissions of these sources of industrial pollution on plant sites and the population density of some invertebrates was determined. On this basis and the accumulation of lead and cadmium by the studied biological objects the commensurate distances covered by the biologically significant effect of emissions of the strong thermal power station and vehicles are determined.