scholarly journals Regional features of birth rate and mortality in the Lower Volga region in the famine of 1932-1933s

2021 ◽  
Vol 10 (2) ◽  
pp. 189-199
Author(s):  
Nazar Nikolayevich Nazarenko ◽  
Anatoliy Victorovich Bashkin

The paper is exploring the problem of the vital rate data in the Lower Volga region during the famine of 1932-1933. Despite the ample quantity of papers presenting this problem the estimations and indicators differ even in the papers of the same authors and valuation methods are not always reliable. The birth rate of the Lower Volga region was 76223 while the mortality was 184570 during the 1933 famine peak by our estimate. However, there are no vital rate data on the Kalmykia in the central statistical administration archives and the registration of 15,2 thousand deaths were not ascertained identically. The real losses from the famine of 1932-1933 in the Lower Volga region (excluding Kalmykia) are estimated at 175 thousand maximum and birth rate losses are 147 thousand in 1932-1934. The mortality of the Lower Volga region had clear geographical distribution and location. The high mortality regions were allocated on the Volga Upland and abutting the Oka-Don plain eastern frontier and on the Medium Syrt frontier in Saratov Krai. The allocation of high mortality regions to the Volga River is interpreted as associating with regions containing major cities and towns with high mortality neighborhoods to the Volga. Stalingrad Krai is defined as a region with lower mortality and gradual slow in its increase with a low peak displaced to July 1933. In 1933 the Lower Volga mortality dynamics was from north to south epidemic; whereas in the south there was time to assume the measures as opposed to northern regions. Some Lower Volga regions in 1933 were characterized by a catastrophic low birth rate and high mortality and at the same time by high birth rate and low mortality and positive vital rate data. The distribution of high mortality regions was determined by the character of local authorities activities and local conditions including geographical description (orthometric height), that requires background study.


Author(s):  
Л.В. Боронина

Волга почти на всем протяжении от Твери до Астрахани является истощенным водоемом по качественному составу. По Нижневолжскому бассейну ресурс экологически чистой воды составляет не более 3% общих ресурсов поверхностных вод Астраханской области. В связи с этим в Астраханской области проблемы качества питьевой воды обусловлены загрязнением природной воды, неудовлетворительной очисткой ее на водопроводных станциях, вторичным загрязнением в разводящих сетях. Проведен анализ экологического состояния Нижней Волги, а также оценка его влияния на качество питьевого водоснабжения. Применяемые в Астраханской области технологии очистки воды для водоснабжения запроектированы и построены в 1960–70-е годы и не рассчитаны на грязевую нагрузку по качеству и количеству, значительно отличающуюся от современной ситуации. Проведен анализ работы водозаборных и водопроводных очистных сооружений, который показал, что они находятся в крайне неудовлетворительном техническом состоянии и морально устарели. Предложены пути решения вопросов по улучшению качества питьевого водоснабжения с учетом сложившейся кризисной экологической обстановки на Нижней Волге и мирового опыта. Almost along the entire length from Tver to Astrakhan, the Volga River has been a depleted water reservoir in terms of its qualitative composition. In the Lower Volga basin the resource of ecologically clean water is less than 3% of the total surface water resources of the Astrakhan Region. In this regard, drinking water quality problems in the Astrakhan Region have been caused by natural water pollution, poor water treatment at the waterworks, secondary pollution in the distribution networks. The ecological state of the Lower Volga has been analyzed, and its impact on the quality of drinking water supply has been estimated. The technologies of water purification used in the Astrakhan Region for water supply were designed and implemented in the 1960s–70s; they were not designed for the pollution load in terms of the quality and quantity significantly different from the current situation. An analysis of the operation of water intake and water treatment facilities was carried out that showed their extremely unsatisfactory technical condition and obsolescence. The ways of solving the problems of improving the quality of drinking water supply with account of the current critical ecological situation in the Lower Volga Region and world experience, are proposed.



2019 ◽  
pp. 54-57
Author(s):  
Tamara M. Nikulina ◽  
Dina P. Kurunina

Relevance One of the priority directions of selection is the creation of varieties that are most adapted to local conditions with high productivity. Methods The object of study – varieties and hybrids of pumpkin of three Botanical species: Cucurbita maxima, Cucurbita moschata and Cucurbita pepo. The purpose of the work is the creation and introduction into production of high-yielding varieties of pumpkin with high quality fruits, resistant to bio-and abiotic conditions of the lower Volga region. Research objectives: the study of varietal diversity and identification of genetic sources adapted to the conditions of the region; artificial hybridization, evaluation of the obtained source material on the main economic and valuable features, selection of the best hybrid combinations and testing them in comparison with the best zoned varieties. Results The collection identified genetic sources of productivity: Chino, Sviten, Kham, Creen Warted Habbard, Zukat, Arina, Madam; the quality of the fruit: Sorme poire, Burgess Buttercup Wintes, Malishka, Duchess, Konfetka. Using the selected genetic sources in crossbreeding, new hybrid combinations were obtained, after testing of which the source material for breeding was formed in the hybrid nursery. The table shows the characteristics of the best hybrid populations of pumpkin species S. maxima, S. moschata. The best zoned varieties of table pumpkin created in recent years. Izyashnaya – medium-ripe, shortleaved, high-yielding (17.0-26.0 t/ha), with high quality fruits (12.0-16.0% solids); Izobilie – yield (18.0-25.0 t/ha), drought-resistant; Romantika – medium-ripe, resistant to powdery mildew, yielding (16.0-20.0 t/ha), high quality fruits (10.0-15.0% dry-VA, 60.4 mg% carotene).



Author(s):  
E. A. Vertikova ◽  

In a competitive variety trial, promising selection lines of sugar sorghum were studied in the Lower Volga region. Based on a set of signs, the best lines were identified, which are recommended for transfer to the State Variety Testing. Breeding lines, which are distinguished by high values of commercially valuable traits, can be used in planned crosses to create highly productive varieties and hybrids of sugar sorghum.









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