Experience in Hydrologic Indicator Zonation of the North Caspian Region in the Search for Fresh and Brackish Waters

1995 ◽  
pp. 11-15
Author(s):  
V. I. Levin
Keyword(s):  
Caspian Region ◽  
Brackish Waters ◽  
The North

2ND INTERNATIONAL SCIENTIFIC FORUM "CASPIAN REGION 2021: WAYS OF SUSTAINABLE DEVELOPMENT" MAY 26-28 2021, ASTRAKHAN

2021 ◽  
Vol 1 (2) ◽  
pp. 100-135
Author(s):  
FEDOTOVA ANNA V. ◽  
◽  
KOSMACHEVA OLGA YU. ◽  
KOLESNIKOVA ELENA M. ◽  
◽  
...  
Keyword(s):  
Higher Education ◽  
Sustainable Development ◽  
Federal District ◽  
Science Research ◽  
Caspian Region ◽  
North Caucasus ◽  
Education Development ◽  
Youth Policy ◽  
Science System ◽  
The North

The article gives an overview of the scientific forum "Caspian Region 2021: Ways of Sustainable Development" held on May 26-28, 2021 in the city of Astrakhan on the basis of the Astrakhan State University. The brief overview introduces the main directions of the forum related to the priority vectors of the Caspian macro-region development, touching upon the issues of cooperation in the scientific and educational sphere on the scale of the Great Caspian Sea, the development of the transport and logistics cluster, integrated safety and security in the context of the economic, cultural, environmental and geopolitical components, youth policy and education development issues. The International Scientific Forum "Caspian Region 2021: Ways of Sustainable Development" united leaders of the science system, higher education and youth policy, leading scientists, experts of higher education and will become the driver of the Year of Science and Technology in Russia. More than 20 events took place within the framework of the Forum: panel discussions, a national conference with international participation, a meeting of the Commission on Science, Research and Technology of the Association of State Universities of the Caspian Countries, a joint meeting of the Council of Rectors of Universities of the Southern Federal District and the North Caucasus Federal District, a meeting of the Caspian Discussion Club, round tables, excursions, presentations, lectures on relevant topics.

On Two Suffixal Elements in the Toponymy of Aturpatakan-South Caspian Region

2019 ◽  
Vol 23 (1) ◽  
pp. 83-86
Author(s):  
Soroush Akbarzadeh
Keyword(s):  
Caspian Region ◽  
Place Names ◽  
The South ◽  
The North ◽  
North Western

The article presents an analysis of the place-names with the formants -(v)īγ/-(w)yq/ and - vīǰ, attested in the South Caspian and the north-western provinces of Iran.

Seismic hazard assessment for oil-and-gas-bearing shelf zones: A case study of the North Caspian region

Oceanology ◽  
2015 ◽  
Vol 55 (6) ◽  
pp. 910-915
Author(s):  
A. A. Krylov ◽  
A. I. Ivashchenko ◽  
S. A. Kovachev
Keyword(s):  
Seismic Hazard ◽  
Hazard Assessment ◽  
Oil And Gas ◽  
Seismic Hazard Assessment ◽  
Caspian Region ◽  
The North ◽  
Gas Bearing

scholarly journals BREAM FECUNDITY (ABRAMIS BRAMA LINNAEUS, 1758) IN THE VOLGA DELTA

2018 ◽  
pp. 49-61
Author(s):  
Vladimir Prokofievich Ivanov ◽  
Natalia Vadimovna Levashina
Keyword(s):  
Biological Indicators ◽  
Caspian Region ◽  
Abramis Brama ◽  
Research Results ◽  
Absolute Fecundity ◽  
The North ◽  
Main Indicator ◽  
Bream Abramis Brama ◽  
Maturation Rate ◽  
Correlation Parameters

Negative processes in the North Caspian related to low water in 2006, 2008-2012, 2014 and 2015 have resulted in drastic decrease of abundance of the most numerous species - bream Abramis brama (Linnaeus,1758). Bream remains the main mass species of the Volga-Caspian region, despite changes in qualitative structure of the population, reducing age, size and weight of species in commercial catches. The article presents research results of bream Abramis brama fecundity and changeability depending on the environment. Deterioration of habitat conditions of bream population adversely affected all biological indicators of bream; in particular, absolute fecundity of females has decreased. There has been established some positive correlation dependence of individual absolute fecundity with length, weight and age of a species. The work presents correlation parameters, equations of regression. There has been observed a decrease in relative fecundity of bream Abramis brama , which is a main indicator of intensive reproduction of the population in changing environment. The article gives data on dramatic reduction of bream maturation rate. The research results provide practical value in solving problems of fish stocks regulation, abundance recovery and increased catches of bream in the Volga-Caspian region.

Growing perennial sorghum in the North-Caspian region

2019 ◽  
Author(s):  
В. Косолапов ◽  
Г. Булахтина ◽  
М. Шагаипов ◽  
Л. Гишкаева ◽  
М. Шагаипов
Keyword(s):  
Plant Density ◽  
Local Environment ◽  
Alkaline Soil ◽  
Caspian Region ◽  
Crop Species ◽  
New Crops ◽  
The North ◽  
Insufficient Amount ◽  
Dry Conditions ◽  
Dry Farming

В настоящее время обеспеченность полноценными кормами животных, пасущихся на природных пастбищах Прикаспия, очень низка она составляет в среднем по регионам от 10 до 41. Правильный подбор видов и сортов кормовых растений, продуктивных и устойчивых, это первый этап создания прочной кормовой базы. Одним из путей решения этой проблемы является интродукция, то есть натурализация и акклиматизация растений в новых для них условиях среды. Интродукция растений особенно актуальна для регионов со сложными природноклиматическими условиями. Приведены результаты исследования возможности интродукции кормового растения сорго многолетнее (Sorghum derzhavinii Tzvel.) в полупустынных почвенноклиматических условиях Северного Прикаспия. Регион проведения опыта Астраханская область. Коэффициент аридности составляет 0,11 0,30 (сильно аридная зона). За год осадков выпадает в пределах 125 265мм. Продолжительность периода с температурами выше 10С составляет 165 170 дней. Сумма эффективных температур достигает 3200 3500С. Испаряемость в 3 5 раз превышает количество выпавших осадков. Вероятность сухих и засушливых лет превышает 60. По результатам исследования было выявлено, что сорго многолетнее является неприхотливым к почвенным условиям растением, способным к произрастанию на малогумусных (0,75) солонцеватых почвах. Лучшие показатели урожайности зелёной массы отмечены у сорта Травинка в варианте 40 тыс. растений на 1 га: при поливе 41,6 т/га, на богаре 7,9 т/га у сорта Караван при густоте стояния 20 тыс. растений на 1 га: при поливе 24,8 т/га, на богаре 3,9 т/га. С 1 га кормового угодья сорго можно получить при поливе 2,2 8,5, на богаре 0,4 2,5 т корм. ед. Pastures of the Caspian region provide insufficient amount of highquality fodder, satisfying only 10 41 of total demand. Stabilization of forage resources requires optimal combination of highproductive and resistant crop species and varieties. Introduction of new crops into local environment is one of the ways improving forage availability, particularly for the regions with severe climate. Performance of perennial sorghum (Sorghum derzhavinii Tzvel.) was tested under strong dry climate in the Astrakhan region. Annual precipitation rate is 125 265 mm. Temperature of above 10С stays for 165 170 days. Growing degree days reach 3200 3500С. Evaporation rate exceeds precipitation by 3 5 times. Probability of dry years reaches 60. Sorghum showed good adaptability to soil and was able to grow on lowhumus (0.75) alkaline soil. Variety Travinka performed the best under plant density of 40 thousand plants per 1 ha: when irrigating 41.6 t ha1, under dry farming 7.9 t ha1. Karavan yielded the most under plant density of 20 thousand plants per 1 ha: under water supply 24.8 t ha1, without irrigation 3.9 t ha1. Sorghum could yield 2.2 8.5 and 0.4 2.5 t feed units ha1 under irrigation and dry conditions, respectively.

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