scholarly journals CHARACTERISTICS OF FLORA IN SAMARA ZAVOLZHIE NEPOTISTIC SPECTRUM

2015 ◽  
Vol 4 (2) ◽  
pp. 86-89
Author(s):  
Anastasiy Viktorovna Ivanova ◽  
Natalia Viktorovna Kostina
Keyword(s):  
Climatic Factors ◽  
Volga Basin ◽  
Forest Steppe ◽  
Taxonomic Structure ◽  
Natural Zones ◽  
Number Of Species ◽  
The North ◽  
Ulyanovsk Region ◽  
The Republic ◽  
Families First

It is known that the flora reacts on changing of composition climatic factors. Changing the composition of the head of the nepotistic spectrum, which is determined by the type of flora (first triada). Samara Region is located in Fab-zone, which in the territory of the Volga basin covers Saratov, Samara, Ulyanovsk region and the Republic of Tatarstan. In the north-western part of the Volga basin it gradually becomes Ros-zone. Changes in the composition of flora has discrete-continuous in nature. Flora in different parts of Fab-zone has its own characteristics, which is reflected in the taxonomic parameters. Most of the Samara Region is located in Zavolzhie, which forms the border of natural zones: forest-steppe and steppe. The natural conditions of these territories have their differences, and, therefore, differ in the parameters flora. The article reveals differences in the taxonomic structure of the flora of the steppe and forest-steppe part of the Samara region. These differences manifest themselves in different share of participation Fabaceae and Rosaceae. In the steppes of Samara Zavolzhja weakened the role of the family Rosaceae and enhanced Chenopodiaceae. Taxonomic analysis shows that the composition of the leading families first triad of the spectrum depends on the number of species in the description. The more species, the greater the likelihood that established triad leading families, corresponding to the zone. If the number of species in the description 500, then the leading triads stabilized.

scholarly journals Effect of climatic factors on forest succession in the forest-steppe zone of the Republic of Tatarstan

2020 ◽  
Vol 17 ◽  
pp. 00037 ◽  
Author(s):  
Irek Singatullin ◽  
Zulfiya Khakimova ◽  
Vasily Chernov ◽  
Rustam Davletshin
Keyword(s):  
Tree Species ◽  
Forest Succession ◽  
Climatic Factors ◽  
Steppe Zone ◽  
Biological Characteristics ◽  
Forest Steppe ◽  
Artificial Regeneration ◽  
Forested Area ◽  
The Republic ◽  
Forest Rehabilitation

The paper analyzes the effect of climatic factors on forest succession in the forest-steppe zone of the Republic of Tatarstan. A reliable relationship was revealed between a decrease of the oak forested area and extremely low frosts in 1939–1940, 1941–1942 and 1978–1979, and a decrease in the area of birch after the 2010 drought. Birch and oak are replaced by maple, linden and aspen. Insignificant amount of young trees and the predominance of ripe and overripe plantations of oak and birch will lead to the continuation of forest succession in the forest-steppe zone. Impossibility of reverse succession at this stage by natural rehabilitation is associated with the biological characteristics of these species. Oak and birch forest rehabilitation is only possible with measures to promote natural or artificial regeneration with due regard to the biological characteristics of tree species.

PRODUCTIVITY OF STANDS AND EVALUATION OF NATURAL RESTORATION IN COASTAL FORESTS

2016 ◽  
Vol 11 (3) ◽  
pp. 52-57 ◽  
Author(s):  
Ульданова ◽  
Railya Uldanova ◽  
Сабиров ◽  
Ayrat Sabirov
Keyword(s):  
Climatic Factors ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Coastal Forests ◽  
Forest Stands ◽  
High Productivity ◽  
Initial Stage ◽  
Insufficient Amount ◽  
The Republic ◽  
Coniferous Ecosystems

Taxation characteristics of stands of coastal forest ecosystem of the Volga region of the Republic of Tatarstan. The generally accepted methods of a research in forest taxation, constant and the temporary trial areas. The researched forest formations: oak, lime, birch, maple, willow, pine, larch. High productivity of pine (Ia-I quality class) and larch (Ia-I), lime (I-II) and birch (Ia-II) plantings. Age of forest stands of a pine - 50-80 years, larches - 48-54 years, lindens - 43-90 years, birches - 33-60 years. Distribution of trees of the prevailing breeds on thickness steps. Statistics of distribution of trees. Differentiation of trees in forest stands (V=19-37%). In plantings a frequent subgrowth of a pine and maple. The insufficient number of subgrowth in the coastal woods. Reasons of weak natural reforestation: the initial stage of forest regeneration process in young plantings; quite powerful forest laying in coniferous ecosystems; distribution of developed heavy sod in birch forests; insufficient amount of light under bed lime phytocenosis, the use of seeds of forest forming breeds by forest fauna; pasturage of the cattle in plantings, adjacent to settlements; the raised recreational load of forest ecosystems; the adverse climatic factors in a forest-steppe zone influencing development of shoots of tree species.

scholarly journals Comparison of weed communities organization factors in the Leningrad Region and the Republic of Bashkortostan

2019 ◽  
Vol 8 (3) ◽  
pp. 92-98
Author(s):  
Sergey Maratovich Yamalov ◽  
Maria Vladimirovna Lebedeva ◽  
Natalya Nikolaevna Luneva ◽  
Gulnaz Rimovna Khasanova ◽  
Zinnur Khaidarovich Shigapov
Keyword(s):  
Soil Acidity ◽  
Climatic Factors ◽  
Forest Belt ◽  
Mountain Forest ◽  
Forest Steppe ◽  
Leningrad Region ◽  
Zonal Vegetation ◽  
Weed Communities ◽  
Republic Of Bashkortostan ◽  
The Republic

This paper considers the results of the ordination analysis of weed communities in two regions - the Leningrad Region (LR) and the Republic of Bashkortostan (RB). The dataset includes 1726 relevs of the weed communities executed by the authors during 2000-2018 in cereal and root crops. The calculation of the ecological statuses of communities on 9 scales of D.N. Tsyganov is carried out for ecological characteristics of habitats. The values of the scales corresponding to climatic factors (thermoclimatic scale, cryoclimatic scale, aridity-gumidity scale), edafic factors (salt regime, soil acidity, nitrogen richness, variability of moistening) as well as scales of soil moisture and lightning are attracted to the analysis. The communities ranges on each scale are determined. The detrended correspondent analysis (DCA-ordination) with CANOCO 4.5 software package is used for the identification of ecological patterns of species and communities distribution and definition of the main drivers. It is demonstrated that the sets of the scales reflecting main ecological drivers significantly differ for the compared regions. Only the thermoclimatic scale and the scale of variability of moistening are common for both regions. The scales of nitrogen richness, variability of moistening and cryoclimatic influence generally on floristic composition differentiation in the LR. The scales of aridity-gumidity, the salt regime, lightning, moistening and soil acidity determine the floristic differentiation in the RB. A large number of scales in RB are defined by a variety of zonal vegetation types in the region which are connected with landscapes of forest, forest-steppe and steppe zones as well as a mountain-forest belt of the Southern Ural. The zonal vegetation of LR belongs only to subzones of the southern and average Taiga. The exception is the lightning scale which high values of correlation are connected with a considerable share of sunflower and corn in cultivated crops in RB.

scholarly journals Short communication: Ecological and faunal complexes of insectivorous mammals of the Republic of Mordovia, Russia

2020 ◽  
Vol 21 (7) ◽  
Author(s):  
Alexey Andreychev
Keyword(s):  
Species Composition ◽  
Rare Species ◽  
Short Communication ◽  
Forest Steppe ◽  
Number Of Species ◽  
Steppe Region ◽  
Faunal Complexes ◽  
The Republic ◽  
Regions Of Russia ◽  
Occurrence Of Species

Abstract. Andreychev A. 2020. Short communication: Ecological and faunal complexes of insectivorous mammals of the Republic of Mordovia, Russia. Biodiversitas 21: 3344-3349. In this study, reports that the species composition and occurrence of species in geo-ecological districts are not the same. 12 insectivorous mammals species have been recorded in the territory of Mordovia. The largest number of species in the region belongs to those living in coniferous and broad-leaved forests (42%). In the second place in terms of representation are species widely distributed in several natural areas (33%). They are slightly inferior to the types of taiga fauna (25%). For each geo-ecological district, the features of the rodent fauna are given and rare species are identified. The forest-steppe region of Mordovia is compared in insectivorous mammals fauna with other regions of Russia with different typical faunal complexes.

scholarly journals Agrobiological Assessment of Varieties and Some Methods of Growing Garlic in the Forest-steppe Zone of the Republic of Ingushetia

2019 ◽  
Author(s):  
B B Galaev ◽  
M A Bazgiev ◽  
K Sh Badurgova ◽  
I A Gutseriev ◽  
M Kh Gandarov
Keyword(s):  
Steppe Zone ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
North Caucasus ◽  
Potential Productivity ◽  
The North ◽  
Planting Material ◽  
Cultivation Technology ◽  
The Republic

Increasing production and improving the quality of garlic products is an important production problem. Under the conditions of the vertical zonality of the North Caucasus with varying agroecological conditions, the yield of this crop largely depends on the technology of cultivation and the level of its intensity. Important factors determining the yield and quality of garlic products are varieties adapted to these agro-climatic conditions, quality planting material, cultivation technology that meets the requirements of the crop and the agro-climatic conditions of the region. Currently, the potential productivity of the varieties used in the republic is realized only by 30-40 percent. This is due to the insufficient development of technologies for their cultivation, taking into account the specific environmental conditions of the region. In this regard, research aimed at studying the basic laws of the formation of yield and product quality varieties of garlic is a pressing issue.

scholarly journals Agrobiological Evaluation of Varieties and Methods Used in Growing Garlic in the Forest-Steppe Zone (in the Republic of Ingushetia)

2021 ◽  
Author(s):  
Batyr Galaev ◽  
Magomed Bazgiev ◽  
Liza Kostoyeva ◽  
Israil Gutseriev
Keyword(s):  
Steppe Zone ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Potential Productivity ◽  
Ecological Conditions ◽  
The North ◽  
Planting Material ◽  
The Republic ◽  
Planting Materials

Increasing the production and quality of garlic yield is an important agricultural challenge. In the varying agro-ecological conditions of the North Caucuses, the yield of this crop largely depends on the planting technology and the level of its intensity. Important factors that determine the quality of the garlic yield are the use of varieties adapted to these agro-climatic conditions, high-quality planting materials and agricultural technology that meets the requirements of the crop, and the agro-climatic conditions of the region. At present, the potential productivity of varieties used in the Republic is only 30-40 percent. This is due to the insufficient development of planting technologies that take into account the specific ecological conditions of the region. This study examines the factors regulating the yield and quality of garlic varieties. Keywords: garlic, fertilizers, planting schemes, variety, planting material, vegetation

VARIETY FEATURES OF POTATOES IN THE CONDITIONS OF THE FOOTHONE ZONE NOR - ALANIA

2020 ◽  
Vol 15 (10) ◽  
pp. 1321-1332
Author(s):  
S.S. Basiev ◽  
◽  
A.K. Abazov ◽  
B.V. Bekmurzov ◽  
A.A. Abaev ◽  
...  
Keyword(s):  
Food Security ◽  
Steppe Zone ◽  
Forest Steppe ◽  
North Caucasus ◽  
Natural Conditions ◽  
Mountainous Regions ◽  
The North ◽  
Local Soil ◽  
The Republic ◽  
North Ossetia

Potatoes are a valuable product and are of great national economic importance. In terms of the amount of nutrients per unit area, potatoes occupy one of the first places among plants cultivated by humans. In the North Caucasus, the production of marketable potatoes is almost entirely concentrated on the farms of the foothill and mountainous regions, which have favorable natural conditions (sufficient rainfall and moderate temperatures). The solution of almost all problems of the functioning of the agroindustrial complex is focused on ensuring food security. In solving food security in the country and in individual regions, a large role belongs to the development of such an important branch of agro-industrial production as potato growing. The development of this most important industry in the Republic of North Ossetia-Alania is possible only on the basis of innovative modernization of potato growing. In the North Caucasus, the production of marketable potatoes is almost entirely concentrated on the farms of the foothill and mountainous regions, which have favorable natural conditions (sufficient rainfall and moderate temperatures). The area of potato planting in the region reached 35-40 thousand hectares, and at present in the Republic of North Ossetia-Alania there are about 1.5-2.0 thousand hectares under this crop. The aim of the research is to study the characteristics of growth, plant development, heat-drought resistance of various varieties of potatoes in the forest-steppe zone of North OssetiaAlania. As a result of three-year research (2018- 2020), it was found that under the conditions of the forest-steppe zone of North Ossetia - Alania, such early-maturing varieties as - Udacha, VR808, Gulliver, Riviera form up to 29.8 to 33.4 t / ha of early harvest potato tubers and are the most adapted varieties to local soil and climatic conditions.

scholarly journals THE STUDYOF THE АREA OF DISTRIBUTION OF WEST NILE VIRUS IN THE TERRITORY OF THE EUROPEAN PART OF RUSSIA; THE RESULTS OF SEROEPIDEMIOLOGICAL RESEARCH. COMMUNICATION 2: CENTRAL, PRIVOLZHSKY AND NORTH-WESTERN FEDERAL DISTRICTS

2017 ◽  
Vol 22 (2) ◽  
pp. 52-57
Author(s):  
A. A Kozlova ◽  
A. M Butenko ◽  
V. F Larichev ◽  
V. V Vashkova ◽  
T. K Dzagurova ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Steppe Zone ◽  
Morbidity Rate ◽  
Forest Steppe ◽  
North Caucasus ◽  
West Nile ◽  
The North ◽  
Northern Border ◽  
Federal Districts ◽  
The Republic

Sera of 3951 inhabitants of Central, Privolzhsky and Northwest federal districts of Russia were examined with the use of ELISA-IgG and neutralization test. Antibodies to West Nile virus (WN) were detected in the sera of residents of Voronezh (1,6% of cases), Tula (1,5%), Tambov (0,7%) and Lipetsk(0,6%) regions. Two positive samples have been detected in residents of Moscow and Moscow region, which were possibly infected, during theirs travel to endemic for WN fever regions. All sera obtained from Kaluga, Ryazan, Tver, Vologda, Ulyanovsk regions and The Republic of Tatarstan were negative. Our data, in combination with the morbidity rate of WN fever indicate on epidemiological activity of foci of this infection in the South, the North Caucasus, Privolzhsky (Saratovskaya region) and Central (the forest-steppe zone and Tula region) districts. The northern border of circulation of WN virus probably dispose of the latitude of the Tula region.

Irrigation regime and water consumption of potatoes in the Republic of Bashkortostan, depending on the reclamation condition of lands

2020 ◽  
Vol 0 (6) ◽  
pp. 13-19
Author(s):  
Guzel Gumerova ◽  
Georgiy Gulyuk ◽  
Dmitry Kucher ◽  
Anatoly Shuravilin ◽  
Elena Piven
Keyword(s):  
Water Consumption ◽  
Weather Conditions ◽  
Growing Season ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Total Water ◽  
Total Water Consumption ◽  
Republic Of Bashkortostan ◽  
Irrigated Lands ◽  
The Republic

Data of long-term researches (2015–2018) in southern forest-steppe zone of the Republic of Bashkortostan, is justified theoretically and experimentally the mode of irrigation of potatoes on leached chernozems of unsatisfactory, satisfactory and good ameliorative condition of irrigated lands. For the growing periods of potatoes with different heat and moisture supply, the number of watering, the timing of their implementation, irrigation and irrigation norms are established. On lands with unsatisfactory meliorative state the number of irrigation depending on weather conditions of potato vegetation period varied from 0 to 3 (1.5 on average) with average irrigation norm – 990 m3/ha. With satisfactory meliorative state of lands the number of irrigation on average increased from 0 to 4 (2.3 on average) with irrigation norm – 1305 m3/ha. On lands with good meliorative state the number of irrigation was the highest – from 1 to 5 (3 on average) with average irrigation irrigation norm is 1653 m3/ha. It was noted that in the dry periods of potato vegetation the greatest number of watering was carried out (3–5 watering), and in the wet periods (2017) watering was not carried out except for the area with a good reclamation state, where only one irrigation was carried out by the norm of 550 m3/ha. Water consumption of potato was studied in dynamics as a whole during the growing season and the months of the growing season depending on weather conditions of vegetation period and land reclamation condition of irrigated lands, as well as in the control (without irrigation). The lowest total water consumption was in the area without irrigation and averaged 226.8 mm. In irrigated areas, its values increased to 319-353.4 mm. The average daily water consumption varied from 2.12 to 3.3 mm. The highest rates of potato water consumption were observed in June and July, and the lowest – in May and August. In the total water consumption of potatoes on the site without irrigation, the largest share was occupied by atmospheric precipitation and in addition to them the arrival of moisture from the soil. Irrigation water was used in irrigated areas along with precipitation, the share of which was 30.2–46.1 %.

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