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Mikhail Shlemov | profile | all galleries >> Russia >> Volga Delta tree view | thumbnails | slideshow | map

Volga Delta

Volga Delta
The Volga Delta is the largest inland river delta in Europe, and occurs where Europe's largest river system, the Volga River, drains into the Caspian Sea in Russia's Astrakhan Oblast, north-east of the republic of Kalmykia. The delta is located in the Caspian Depression—the far eastern part of the delta lies in Kazakhstan. The delta drains into the Caspian approximately 60 km downstream from the city of Astrakhan.

The Volga Delta has grown significantly in the past century because of changes in the level of the Caspian Sea. In 1880, the delta had an area of 3,222 km. Today the Volga Delta covers an area of 27,224; and is approximately 160 km across. It has a classical "delta pattern". The delta lies in the arid climate zone, characterized by very little rainfall. The region receives less than one inch of rainfall in January and in July in normal years. Strong winds often sweep across the delta and form linear dunes. Along the front of the delta, one will find muddy sand shoals, mudflats, and coquina banks.

The changing level of the Caspian Sea has resulted in three distinct zones in the delta. The higher areas of the first zone are known as "Behr's mounds," which are linear ridges of clayey sands ranging from 400 m to 10 km in length, and averaging about eight meters in height. Between the Behr's mounds are depressions that fill with water and become either fresh or saline bays. The second zone, in the delta proper, generally has very little relief (usually less than one meter), and is the site of active and abandoned water channels, small dunes and algal flats. The third zone is composed of a broad platform extending up to 60 km offshore, and is the submarine part of the delta.

The delta has been protected since the early 1900s, with one of the first Russian nature preserves (Astrakhan Nature Reserve) having been set up there in 1919, but much of the local fauna is considered endangered. The Delta is a major staging area for many species of water birds, raptors and passerines. Although the delta is best known for its sturgeons, catfish and carp are also found in large numbers in the delta region. The lotus has been adopted as the motif of the national flag of the neighbouring Kalmyks, since it is a venerated symbol in their Tibetan Buddhist beliefs - they are the sole European people of Mongolian (Oirat) origin.
The Volga Delta is the only place in Russia where pelicans, flamingoes, and lotuses may be found.

Industrial and agricultural modification to the delta plain has resulted in significant wetland loss. Between 1984 and 2001, the delta lost 277 km. of wetlands, or an average of approximately 16 km. per year, from natural and human-induced causes. The Volga discharges large amounts of industrial waste and sediment into the relatively shallow northern part of the Caspian Sea. The added fertilizers nourish the algal blooms that grow on the surface of the sea, allowing them to grow larger.


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Map of Volga Delta where I took my photos (P)
Map of Volga Delta where I took my photos (P)
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