Natural factors influence on first rarely flooded soil salination of the river Volga delta

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Abstract

Soil degradation is one of the common types of which is soil salination, is a serious limited factor of food security and sustainable territory development. It is necessary to pay a special attention on the first soil salination of arid regions, as arid climate leads to the active salt accumulation in the upper rooting soil horizons and gives rise to withdrawal of large land areas from economic turnover. The purpose of the this work is defining of the watersoluble salts specific features in soils of the river Volga delta upper level natural boundaries under the influence of natural factors. Botanic natural sanctuary “Svinoroiny meadow (Meshkovsky)” was chosen as a research object, associated with the new Caspian coastal plain within distribution of the river Volga delta Baer knoll landscape. Water extract ions analysis and soil solution toxicity calculation on the area were carried out from 1979 till 2020. It was revealed that dynamics direction of salination types are defined by the ascent of water predominanceon over descending on the area in the conditions of the territory exudative water regime. Salination increase to a great extent depends on the great volumes of spring-summer floods and appropriate ground water level rise, area desalination is defined by atmospheric precipitations quantity.

About the authors

Mikhail V. Valov

Astrakhan State University name of V.N. Tatishchev

Author for correspondence.
Email: m.v.valov@mail.ru
ORCID iD: 0000-0002-1126-6467

Candidate of Geographical Sciences, Associate Professor, Head of the Department of Ecology, Nature Management, Land Management and Life Safety

aud. 203, 1 Shahumyan Sq., Astrakhan, 414000, Russian Federation

Alexandr N. Barmin

Astrakhan State University name of V.N. Tatishchev

Email: abarmin60@mail.ru
ORCID iD: 0000-0002-6705-1553

Doctor of Geographical Sciences, Professor, Dean of Geology and Geography Faculty

aud. 203, 1 Shahumyan Sq., Astrakhan, 414000, Russian Federation

Daniil Yu. Belyaev

Astrakhan State University name of V.N. Tatishchev

Email: belaevdaniil2013@mail.ru
ORCID iD: 0000-0001-8281-0450

third-year student of the direction of training 05.03.06 “Ecology and nature management” of the Department of Ecology, Nature Management, Land Management and Life Safety

aud. 203, 1 Shahumyan Sq., Astrakhan, 414000, Russian Federation

Alexandr V. Sintsov

Astrakhan State University name of V.N. Tatishchev

Email: m.v.valov@mail.ru
SPIN-code: 9322-8817
Candidate of Geographical Sciences, Associate Professor of the Department of Ecology, Nature Management, Land Management and Life Safety aud. 203, 1 Shahumyan Sq., Astrakhan, 414000, Russian Federation

Ekaterina V. Lipezina

Astrakhan State University name of V.N. Tatishchev

Email: m.v.valov@mail.ru
master’s student of the first year of study in the field of 05.04.06 “Ecology and nature management” of the Department of Ecology, Nature Management, Land Management and Life Safety aud. 203, 1 Shahumyan Sq., Astrakhan, 414000, Russian Federation

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Copyright (c) 2022 Valov M.V., Barmin A.N., Belyaev D.Y., Sintsov A.V., Lipezina E.V.

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