Scientific Journal of KubSAU

The steppe rivers of Kuban, which form their landscapes in the space between the basins of the rivers Don and Kuban, are divided into two subtypes: the rivers of internal flow which flow into the small ponds (Panura, Kirpili et al.), and the rivers of external flow which flow into the Sea of Azov (Eja, Beysug, Chelbas); direction of flow of these rivers is defined slightly downward from the high right bank of the Kuban (up to 50m) and the eastern slopes (altitude up to 50-170m) of Stavropol Upland; shores of rivers are heavily deforested, subjected to strong anthropogenic pressure and water systems contaminated of organic substances. Plowing of catchment areas to foreshore and plowing dry beams, as well as cutting of forests caused huge harm of river systems. The qualitative composition of microorganisms is not very varied. Polluted rivers and bottom sediments are dominated by saprotrophic microorganisms, spore-bearing and other rod-shaped bacteria. In the samples of sludge we marked high titer thiobacteria and sulfate-reducing bacteria. Complex of actinomycetes was investigated. The species composition of vascular plants includes 135 species from 48 families, most numerous asteraceae, cereals and legumes. The dominant plant of many floodplains steppe rivers is common reed, which contributes to the process of silting soil particles from the fields and the destruction of the sod with overgrazing. Among phytocenoses there is a domination of reed grass-forb deposits on moist soils, mesophilic couch grass-forb and grass-forb xerophytic. In soil biota of floodplains it is dominated by oligochaetes, bottom fauna molluscs and oligochaetes, water - rotifers and cladocerans

The optimum combination of quantitative and qualitative relationships between structures of organic and mineral wastes of various industries provides the formation of compound composts, which improves its physical, chemical and biological properties of the soil, helps conserve macro- and micronutrients, organic matter, enhance ecological niches system, to ensure the development of ecological trophic groups of microorganisms

The features of introduction of trees, shrubs and herbaceous species in terms of the Krasnodar region and the south of the CIS are analyzed, the specificity of this process for deciduous and coniferous species, and grasses at their development in the spring and autumn periods, the allocation of forming niches generative organs, microsporogenesis, etc. are discussed. Opportunity to adapt different kinds of herbs and species of shrubs and trees, taking into account seasonal development with allocation of exotic species in the annual cycle of vegetation critical periods for the growing season Kuban has been considered. The results of the horizontal and vertical introduction in the study of the imported seeds and planting material of different species of trees, shrubs and grasses are discussed

Self-regulation of agricultural systems is based upon taking into account the interaction of their components released in variety of species and trophic relations; agricultural systems is diversified in towards a sustainable, productive and strategic development of the systems; one of the most promising areas of diversification of agricultural systems is considered to be an introduction to the practice of combining crops, known in agriculture for a long time, which shows us the nature. The most developed technology for creating combined crops is the practice of creating mixtures and the nature of the relationship between their different components

Creation of joint sowings is very complicated modern environmental problem and the solution is impossible without a comprehensive study of the relationship between individuals of different species that are emerging at the level of a plant community. Studying biotic relationships between taxa used in these crops is very important; joint crops include combinations (sowing crops in rows) and mixed crops (crop seeds mixed and sown together); great attention in the mixed and combined sowings has been paid to selection and combination of cultures

The condition of agrolandscape systems of Kuban has limited number of natural factors, among which an important place is occupied by temperature, moisture, nutrients and places with weediness of sown areas. Basic soils are occupied by cultivation of agricultural crops with a significant presence of segetal communities in the tilled crops, as well as field protective strips. In soils of agricultural landscapes there are actively developing bacteria, actinomycetes and microscopic fungi, the representatives of mesofauna, qualitative composition of which is very varied. When characterizing the soils we can mark a broad aspect of their contamination with heavy metals and oil, as well we pay attention to peculiarities of agriculture

Complicated compost with organic and mineral components, has a serious impact on the physical, chemical and biological properties of topsoil significantly modifies its cycles of elements and substances; with the Carboniferous and up to now it has been established the supremacy of the recovery processes in landscapes as compared to oxidation processes through the introduction of complicated compost in their stabilizing factors

This article summarizes the results of the study of physical, chemical and biological characteristics of mineral waste; it analyzes the specific features of its behavior when applied to the soil in pure form and in complex compost; the possibility of using some of them as an ameliorant for improving the fertility of soil common in the steppe zone of the region

Ecological niche acts as an important evolutionary function of living organisms in the ecosystem and determines its properties, which are caused by the nutrient requirements, mobility, ability to reproduction, biochemical features, structural features limits tolerance to environmental conditions, opportunities performing certain actions in the specific biocenosis; in the process of divergence (species, their internal and external properties and abiotic characteristics) features of ecological niches are changed , there are new kinds of living organisms and, of course, the formation of new ecological niches

The article considers the peculiarities of turf and sod, specificity of formation of kidneys for regeneration, types of shoots, vegetative mobility and specificity of growth in certain conditions, turf grasses are divided into loosely-and tightly-turf characterized, by specific features of environmental, biological characteristics; forming turf from generative rosettes, elongated and shortened vegetative, side ground shoots, differing specificity of morphological, biochemical and fitocoenotical features