Ecology

Age Structure of Coppice Tree Stands of Upland Oak Forests of the Southern Rart of Privolzhskaya Vozvyshennost’

The article discusses the dynamics of the age structure of coppice tree stands of upland oak-groves of the southern part of Privolzhskaya Vozvyshennost’. Data is provided about fifteen sample plots which were laid in three forest areas of the Saratov region in the most common types of forest conditions (C1 , C1-2 and D1 ). Age was determined for all trees on the sample plot by the cores taken by age borer at the root collar.

Analysis of Vegetation Beams Northern Hills Ergeninskoy within the Republic of Kalmykia

The composition of plant communities in the northern part of the beams Ergeninskoy hill, growing conditions which caused sharply arid Republic of Kalmykia. Species dominating seasons of the year, their productivity and the value of livestock. The analysis of vegetation and the three beams Maloderbetovsky Sarpinsky administrative districts.

The Dynamic Ofecological Conditions and Accumulation of Chemical Elements in Genesis of Watershed Mires of Central Russia

The article shows the dynamic of ecological conditions during development of watershed mires of karst origin. The genesis of mires depends on state of surrounding landscapes, types of bedrocks and hydrology. All these features lead to differences in accumulation of chemical elements in peat deposits. For each element the natural background was defined. The exceedances of natural background indicate anthropogenic impact. By this way, ecological situation of the region was defined.

Dynamics of the Number and Current State of Population Red-footed Falcon (Falco Vespertinus Linnaeus, 1766) in the North of the Lower Volga Region

The abundance dynamics of Falco vespertinus is considered on the basis of our field surveys carried out within the Saratov region and adjacent territories in 2011–2016 and analysis of the literature data. It is shown that F. vespertinus is now presented by stable populations in the spacious territory of the Trans-Volga part of the region. However, some reduction of its abundance was registered here for the last several decades of the 20th century. Currently, the falcon populations in the Volga right-bank region can be characterized as mosaic, and the F.

Search of Bacteria Destructors of Pesticides Prometrin, Hexachlorocyclohexane (HCH), Dihlordifeniltrihlormetilmetan (4,4-DDT) in Soil with Pesticides Burial Places in the Saratov Region

A microbiological study of soil with pesticides burial places in the Saratov region and identified the dominant microbial populations. The number of microorganisms analysis determined that the dominant group in the soil were heterotrophic bacteria and most sensitive – microscopic fungi. Obtained destructors effective microorganisms that break down pesticides prometrin, hexachlorocyclohexane and dihlordifeniltrihlormetilmetan (4,4-DDT). Strains of Pseudomonas putida P2, P. putida P6, P.

Status and Species Diversity of Community Landscape of the Central Part of the City of Saratov

We would like to provide results of examination of community landscape at four landmarks located in the central part of the city of Saratov (Detskiy Park and three parkways: at Rakhova street, Astrakhanskaya street and Kosmonavtov embankment). The list of diverse species of trees and shrubs includes 58 species from 38 geni and 20 families. We have found out that species diversity of general purpose community landscapes increases gradually. We have studied biometric parameters of the trees (height, trunk diameter, crown diameter) and their life status.

Management of the Resource Potential of Municipal Solid Waste of the Volgograd Region

Considered the economic and environmental aspects of the use of fuel-containing waste as alternative fuel (RDF) in the cement industry on the example of JSC «Serebryakovcement».

Current State of the Higher Aquatic Vegetation of the Balakovo NPS Cooling Reservoir under the Influence of Herbivorous Fishes

The article presents data on the assessment of the state of higher aquatic plants cooling reservoir Balakovo NPS under the influence of biomeliorative fishes. It was revealed that the species diversity of higher aquatic vegetation for the period of study has sharply decreased from 34 (2009) to 12 species (2015). The dominant species, which defines the image of plant communities, is common reed (Phragmites australis (Cav.) Trin. Ex Steud). Reed communities are rated as very highly productive in terms of net primary production.

Assessment of Tree Plantations in Residentialrecreational Area Sterlitamak Industrial Center

The investigated stands of Betula pendula, Populus balsamifera, Tilia cordata, Larix sukaczewii, Picea abies. Karst in residential-recreational area of Sterlitamak industrial center. When collecting and processing factual material used generally accepted methods of studying of forest stands. Instrumental produced (diameter, height, age) and visual indication (the density of the crown, the degree of damage to leaves, dead branches) of diagnostic parameters. An estimation of the relative vitality of trees.

Adonis Wolgensis Coenopopulation State in Saratov Region

This article devoted to the patterns of Adonis wolgensis coenopopulations in the Saratov region. The number of coenopopulation, habitats  ecology, ontogenetic structure and the degree of anthropogenic transformation are considered. .

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