NATURAL SCIENCES

Journal of fundamental
and
applied researches

Assessment of land and floral cover in the repair of wells Astrakhan gas condensate field

2017. №4, pp. 44-49

Lapaeva I.V. - Ph.D. (Biology), Leading Enginner, Technical center, JSC Gazprom dobycha Astrakhan, 61a Savushkina Str., Russian Federation

Andrianov V.A. - D.Sc. (Geography), Professor, Astrakhan State University, 1 Shaumyana Sq., Astrakhan, 414000, Russian Federation, andrianov_v.a@mail.ru

Chivileva D.E. - Head of Department, JSC Gazprom dobycha Astrakhan, 61a Savushkina Str., Russian Federation

Gas condensate field landscapes of the desert of the Caspian lowland in operation in arid conditions. In the construction and repair of wells, soil and plant cover has a special burden to a different extent. Among them: mechanical problems, road digression and chemical over-pollution of soils and plants. To search for ways to restore natural ecosystems required for their objective evaluation, including quantitative-chemical and the number value of the biological methods of analysis. The basis of soil covers of the territory with present and semi-desert sandy brown sandy soil with humus content ranging from 0.01 to 0.50 %. Sampling of soil was conducted from two layers (0-5 and 5-20 cm) Reaction medium was in the range of 7.5-9.0 pH units. Content of chloride-ion, sulfate - ion did not exceed the MPC and varied on the level of background values. The oil content ranged from to 1702.50 of 19.35 mg/kg. Excess of land contamination from oil products is recorded in the upper horizon. The paper presents of geobotany-cal evaluation parameters most indicative of arid conditions for the existence of zonal desert vegetation. In the study site the projective cover of vegetation on the soil varied from 5 to 50 %. Described 9 species of higher vascular plants. The meet was Artemisia arenaria , Leumus racemosus , Agriophyllum's squarrosum . The population density of species was changed from 1.0 to 38.0 PCs/m2. Total identified 238 species of vascular plants. In General, the state races vegetative cover is estimated as stable and slightly disturbed.

Key words: почва, растительность, концентрация, окружающая среда, мониторинг, газоконденсатное месторождение, почвенно-растительный покров, soil, vegetation, concentration, environment, monitoring, gas condensate field, land-plant cover