Geology, geography and global energy
Scientific and Technical Journal
Hydroclimatic conditions cyclic changes as the impact factor on the short-term flooding phytocenosis Volga river estuarine natural system
2016. №3, pp. 61-69
Valov M.V. - post-graduate student, Astrakhan State University, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, m.v.valov@mail.ru
Barmin A.N. - in Geographical, Professor, Head of the department, Astrakhan State University, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, abarmin60@mail.ru
Kolotuhin A.Yu. - post-graduate student, Astrakhan State University, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, m.v.valov@mail.ru
Barmina E.A. - post-graduate student, Astrakhan State University, 1 Shaumyan sq., Astrakhan, 414000, Russian Federation, m.v.valov@mail.ru
Climatological changes are the main factors influencing on ecosystem functioning and define the main land cover dynamics tendencies. In recent decades aridization process potentiation is vivid due to annual average temperature increase and atmospheric moistening decrease in many planet aridity regions, result from territories biological efficiency reduction. Some hydrometeorological characteristic changes on Volga river estuarine natural system are described in this work in the period of 1972 till 2015 and these changes influence on short-term flooding phytocenosis vegetation dynamic. It was found out for investigation period that fertile hydroclimatic cycle in the river Volga was seen in the beginning of 1980 till the beginning of 2000 that influenced on high ecological level poiums productivity increase. However up to date, temperatures amount for foliated season under simultaneous territory humidifying decrease, land cover processes have opposite orientation due to annual average temperature increase: you can see vegetation species compositioin decrease, phytocenosis productivity decreases sharply, deltoid landscape foliage cover grade decreases.
Key words: аридизация, дельта реки Волги, динамика растительного покрова, краткопоемные фитоценозы, метеогидрологические изменения, опустынивание, aridization, river Volga delta, land cover dynamics, short-term flooding phytocenosis, hydrometeorological changes, des
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