Ecology

Ecological features of plant communities containing Globularia bisnagarica L. in the Middle and Lower Volga Region

The present article investigates the plant communities of the Middle and Lower Volga region that contain Globularia bisnagarica L. (G. punctate Lapeyr., G. willkommii Nylan) – the species listed in the Red Book of the Russian Federation, the Republic of Bashkortostan, the Republic of Tatarstan, the Stavropol Krai, the Orenburg, Samara, Saratov and Ulyanovsk Province, and Kazakhstan.

Impact of anthropogenic pollution in Tyumen on herbs vital activity parameters

The purpose of this study was the investigation of lipid peroxidation products and photosynthetic pigment content in cells of herbs of various species in conditions of anthropogenic pollution of Tyumen. The material for the research was collected near different plants of Tyumen: metallurgical, engine, oil refinery, battery manufacturing as well as highway pollution. The following species of plants were analysed: coltsfoot (Tussilago farfara), red clover (Trifolium rubens), chamomile (Matricaria chamomilla) and wild vetch (Vicia cracca).

Patterns in Natural Halophytic Grasslands at the Border of Forest-Steppe and Steppe Zones of South Ural

The patterns (mosaicity) in natural halophytic grasslands at the border of Forest-steppe and Steppe zones of South Ural were characterized by the hierarchical continuum concept theory for the Troitskiy state natural complex preserve example. It was established, that the grass canopy is fragmented by salinization impact, the individual’s random distribution is typical of halophytes and salttolerant steppe species form patterns. Only the micro-patterns (0,8 m) level is statistically significant, parcels (8 m) and coenotics (12 m) are fuzzy and fragmentation of mosaicity is observed.

Vegetation of the Bog Brekhovo (Ulyanovsk Region). Recommendations for Regime Security and Use

The Brechovo mire is a natural monument of the Ulyanovsk region, it is a stratigraphic standard of the Holocene period, the place where rare and medicinal plant species grow and has significant reserves of a valuable natural resource – peat. Currently, it is exposed to a number of anthropogenic factors, which causes concern for the safety of its natural complexes. The article is based on the description of trial plots (total 96 descriptions). Field geobotanical studies (area descriptions and geobotanical mapping) were carried out according to generally accepted methods.

Accumulation of Heavy Metals and Arsenic by Medicinal Plant Raw Material of Bitter Hollow

The Voronezh region is traditionally the most important area of crop production and farming. The purpose of the study was to study the contamination by heavy metals of medicinal vegetable raw materials of the Voronezh region using the example of grass of the bitter emery collected in urban and agro-ecological systems, which experience various anthropogenic effects. The accumulations of heavy metals (lead, mercury, cadmium, nickel, copper, zinc, cobalt, chromium) and arsenic were studied, in 51 samples of pooch grass bitter.

Study of the Effect of Antibiotics of Various Groups on the Nitrification Activity of Sod-podzolic Soil by the Method of Laboratory Modelling

An increase in the number of drugs, including antibiotic substances entering the environment, necessitates studies of their impact on the functioning of ecosystems. In the global cycle of substances, the nitrogen cycle is one of the main processes. An important role is played by the nitrification process. For the first time, the effect of antibiotics of different groups: oxytetracycline, tylosin, benzylpenicillin on the nitrifying activity of sod-podzolic soil under their individual and combined exposure by laboratory modeling, was studied.

Accumulation of Heavy Metals and Arsenic in the Leaves of Plantago Major

Voronezh Oblast is traditionally important agricultural and plantgrowing region. The purpose of this study was to examine heavy metal contamination of medicinal plant products of Voronezh Oblast using the leaves of Plantago major L. that were collected in urban and agricultural ecosystems, exposed to anthropogenic impacts. The analysis was carried out using atomic absorption spectrometer MGA-915 MD, according to pharmacopeial methods. Accumulation of heavy metals (cadmium, chromium, cobalt, copper, lead, mercury, nickel, zinc) and arsenic in 51 samples of P. major leaves was evaluated.

Еcological State of Soil in the System “Soil – Forest Plants”

The article considers the ecological state of the soil in the system: soil-forest plantations. Forest plantations enhance environmental sustainability and productivity in the soil-plant system, contributing to the optimization of physical properties and soil regimes. Improving the physical and water-physical properties of the soil, increases the water reserves in the soil, increases the processes of humification, restoration of potential and effective soil fertility. In the soil of the forest zone, the proportion of organic colloids increases due to root and plant residues.

Abundance Dynamics of European Badger (Meles meles L.) in the Saratov River Bank for 2011–2018

European badger Meles meles (Linnaeus, 1758) – is the largest representative of the marten family in the European part of Russia. The eastern part of the range of the European subspecies M. meles meles, which was the study area, is confined to the Saratov Right Bank. The site is characterized by a variety of biotopic, orographic and anthropogenic conditions that affect the number of badgers, their spatial distribution over the territory and population structure. The article analyzes the number of European badgers that live on the territory of the Saratov Right Bank.

Assessment of Radionuclide Pollution of Medicinal Vegetable Raw Materials of the Voronezh Region on the Example of Flowers of Pizhma Ordinary

The Voronezh region traditionally is the most important region of crop production and agriculture. A research objective was the study of pollution by natural and artificial radionuclides of medicinal vegetable raw materials in the Voronezh region on flowers of a tansy ordinary, collected across all territory of the area in urbo-and the agroecosystems which are affected by various anthropogenic influence.

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