Results 191 to 200 of about 18,090 (232)

Invasive and potentially invasive plants of the Middle Volga region

Russian Journal of Biological Invasions, 2017
The article presents a list of invasive and potentially invasive plants in the flora of the Middle Volga region (in Samara oblast and Ulyanovsk oblast) for the first time. The list includes 59 species distributed in groups according to their activity, features of interaction with native species, and the nature of occupied habitats.
S. A. Senator, S. V. Saksonov, V. M. Vasjukov, N. S. Rakov   +3 more
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Early Maastrichtian cheilostome bryozoans from the middle Volga River region

PalZ, 2020
Eight species in six genera of cheilostome bryozoans are described from an early Maastrichtian outcrop located in the Saratov Region, middle Volga River region, southern Russia. The studied bryozoan assemblage includes a new species, Cheethamia volgaensis sp.
Anna V. Koromyslova, Vladimir B. Seltser
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Alien Species in the Flora of the Middle Volga Region

2018
The article presents information on the diversity and structure of the alien flora of the Middle Volga region on the border between the steppe and forest-steppe zones of the European botanical and geographical province. In the studied area, we identified 440 alien species of plants (24.6% of the total floristic diversity), including 59 invasive and ...
Senator, S. A., Vasjukov, V. M., Saksonov, S. V., Novikova, L. A., Vorontsov, D. O.   +4 more
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Seeding alfalfa with smooth brome in the Middle Volga region

Кормопроизводство, 2023
Селекционную работу с люцерной изменчивой (Medicago × varia Mart.) проводили в 2019–2022 годах на полях лаборатории агротехнологии ФНЦ ЛК ОП «Пензенский НИИСХ». Цель исследований — изучить и выделить по комплексу хозяйственно ценных признаков образцы люцерны в смеси со злаковым компонентом (кострецом безостым), перспективные для возделывания в ...
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Geoinformation mapping of soil erosion in the Middle Volga region

Eurasian Soil Science, 2017
© 2017, Pleiades Publishing, Ltd.The results of a medium-scale geoinformation mapping of soil erosion on an area of about 150000 km2 in the Middle Volga region are analyzed using the catchment-based approach. A quantitative index of the development of soil erosion on the agricultural lands is suggested.
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Agroecological Assessment of Arable Lands in the Middle Volga Region

Zemleustrojstvo, kadastr i monitoring zemel' (Land management, cadastre and land monitoring)
The article presents the results of a soil study in the Saratov Oblast, particularly in the Khvalynsk District. Soil-ecological and reclamation characteristics of the studied soils are provided. Sampling was conducted using the envelope method, and agrochemical analysis was performed in accordance with standard methodologies.
V. M. Gerasimova, V. M. Panova
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Upper Kazanian (Middle Permian) gastropods of the Volga–Urals Region

Paleontological Journal, 2015
Taxonomy and stratigraphy of the Upper Kazanian (Middle Permian) gastropods of the Volga–Urals Region are studied. The collections of A.V. Netchaev, N.N. Yakovlev, and N.A. Golowkinsky are partly revised. The Upper Kazanian gastropod assemblages are shown to be highly endemic and have a specific taxonomic structure.
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[Trematodes (Trematoda) of bats (Chiroptera) from the Middle Volga Region].

Parazitologiia, 2013
The data on species diversity of trematodes from bats collected in the Middle Volga Region are summarized. According to original and literary data, 20 trematode species were recorded in bats of the region examined. Plagiorchis elegans, Lecithodendrium skrjabini, L.
A A, Kirillov, N Iu, Kirillova, V P, Vekhnik   +2 more
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Petroleum research center in the Middle Volga region

Chemistry and Technology of Fuels and Oils, 1993
K. M. Badyshtova, K. V. Prokof'ev
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Western Sources on the Early Towns of the Middle Volga Region

Acta Orientalia Academiae Scientiarum Hungaricae, 2002
The article aims at summarising the evidence of European sources concerning the towns of the Middle Volga region. First, the Hungarian Anonymus's Gesta Ungarorum is scrutinised, then the Western travellers' accounts are considered. The result is that prior to the 14th century only Bulgar, the capital of Volga Bulgaria was known to medieval West. In the
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