Reaction of Landscapes of the North Caucasus on the Current Climatic Changes

Atayev, Zagir V.; Bratkov, Vitaly V.

doi:10.18470/1992-1098-2014-1-141-157

Ûg Ross.: èkol. razvit.

2014

DOI: 10.18470/1992-1098-2014-1-141-157

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Reaction of Landscapes of the North Caucasus on the Current Climatic Changes

Zagir V. Atayev¹,

Vitaly V. Bratkov²

Abstract: Резюме. В статье анализируются климатические условия в ландшафтах Северного Кавказа за 1966-2010 годы в сравнении с предыдущим базовым периодом (1931-1960). Отмечается повсеместный рост температуры воздуха (от 0,2 до 0,7°), а также количества выпадающих осадков (до 30-65 мм). Несмотря на это, величина коэффициента увлажнения, являющаяся интегральным показателем условий внутриландшафтного влагообеспечения, изменилась крайне незначительно (не более чем на 0,10). В целом климатические изменения проявились не в ви… Show more

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“…4 (a, b), the air temperature trend lines are positive. This pattern also characterises other regions of our planet, including the South Caucasus [19], Eastern Georgia [17], on the territory of the high-mountain landscapes of the North-East Caucasus [1], the Russian Federation [6], the territories of all CIS states [ 5], Ulyanovsk region [15], landscapes of the North Caucasus [3].…”

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Specific changes in main climatic characteristics of the Debed river basin (Armenia)

2021

Visnyk of V.N. Karazin Kharkiv National University, Series Geology. Geography. Ecology

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Formulation of the problem. The article discusses changes in the main climatic characteristics in the Debed river basin (Armenia) at six meteorological stations. The aim of the work is to analyze and assess peculiar territorial distribution of the main climatic indicators in the Debed river basin, their changes over the past 80-90 years in different conditions of Armenia. Methods. To solve the set tasks, the authors used corresponding research and published works as a theoretical basis in the work. As a starting material, the work used the daily factual data of the "Center for Hydrometeorology and Monitoring" of the SNCO, Ministry of Environment of the Republic of Armenia for the period from 1930 to 2018 at six meteorological stations. The authors applied the following research methods in the article: mathematical and statistical, extrapolation, analysis, analogy, correlation, cartographic. Results. Climate of the earth has been changing rapidly over the past decades, leading to global warming. As a result, we are facing the problem of assessing the macroeconomic consequences of climate change in this territory. Armenia did not remain aloof from the problems of global climate change. On the territory of the river Debed's basin air temperature distribution and precipitation is uneven, due to the geographical latitude of the area, general and local circulation of the atmosphere, radiation energy and orographic features. We notice a decrease in air temperature and an increase in precipitation with the height of the terrain and the vertical gradient, respectively, is 0.54 ºC / 100 m and -20 mm / 100 m. The average annual air temperature ranges from 3.74 ºC to 12.3 ºC, and the annual precipitation is from 462 mm to 770 mm. Studies have also shown that long-term fluctuations in average air temperature over the year are generally characterized by positive trends. Air temperature in the basin of the river Debed increased by 1.65 °С on average over the year from 1964 to 2018. A particularly significant increase in annual temperatures has been observed after the 1990s, when the rate of annual warming reached +0.389 ºС / 10 years (for the period 1993-2018). The warmest years were 1966, 2010 and 2018. The tendency towards a decrease in the annual amount of precipitation prevails in the area. The most significant amount of precipitation decreased in the basin of the river Debed after 2002. The rate of changes in the annual amount of atmospheric precipitation for the period 2002–2018 reached -61.7 mm / 10 years, and for the entire period 1964-2018 - 1.02 mm / 10 years. On average a decrease in annual precipitation was 126 mm from 1964 to 2001, 105 mm - from 2002 to 2018 in the basin of the river Debed. There is a tendency for a slight increase in the amount of precipitation at the Stepanavan weather station.

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confidence: 84%

Specific changes in main climatic characteristics of the Debed river basin (Armenia)

2021

Visnyk of V.N. Karazin Kharkiv National University, Series Geology. Geography. Ecology

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Mapping of modern variability of agro‐climatic conditions of the North Caucasus

Bratkov

Savinova

Klyushin

et al. 2022

Ûg Ross.: èkol. razvit.

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Aim. Assessment of modern climatic and corresponding cartographic changes in the territory of the North Caucasus for its effective use. Methods. Assessment of the impact of climatic changes and their consequences from the point of view of the conditions of heat and moisture availability of the growing season on the biological productivity of the region, and on this basis the creation of maps of the dynamics of agro-climatic conditions. Results. The areas of territories with different humidity conditions vary quite significantly over time. Thus, the dry zone of the North Caucasus can almost completely disappear in some years, while other humidity zones are much more stable. The territories where the most arid conditions can be observed have the minimum area for the entire period of time under consideration. Recent changes have led to a reduction in forest-steppe conditions due to an increase in the area of steppe and dry steppe, which can also be attributed to an improvement in climatic conditions for the production of grain crops. Conclusion.Our research has shown that the territory of the North Caucasus is characterized by a rather significant variability in the conditions of heat and moisture supply during the active vegetation period, which leads to the fact that steppe conditions began to prevail in most of the Western and Central Caucasus, and this favors an increase in grain yields.

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Lotus growth and development in artificial water bodies in the conditions of the Stavropol Upland

Volkova,

Khrapach

2024

Agrarnaâ nauka

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Relevance. The creation of a botanical collection of the lotus family made it possible to study the biology and adaptive features of a rare relict species of Nelumbo nucifera and its variety in the conditions of the Stavropol Upland.Methods. The main phases of development (the beginning of growth, budding, flowering) were recorded. Statistical processing was carried out by the method of variance analysis according to G.N. Zaitsev.Results. In 2010, Nelumbo nucifera seeds were purchased from the Volga River Delta and planted in a 100-liter container, which was located in a closed ground. From 2010 to 2014, the plant vegetated every year from the second decade of January to November, in November, vegetation was artificially stopped. With such agricultural techniques, the plant had no flowering and fruiting phases. In June 2014, rhizomes were planted and lotus seeds were sown in a pond made of butyl rubber film. In 2017, the first flowering was observed. During the study period, the plants did not reach natural indicators, on average, the diameter of the leaves is less by 18.5 ± 1.6 cm, the flowers are 2 ± 0.1 cm, the height is 1.0–1.5 m. The duration of flowering is 57 ± 4 days, which corresponds to the natural conditions of lotus growth from mid-July to early September. During the years of research, 495 seeds were obtained. Under the influence of abiotic factors, the nut-bearing lotus lives up to 8 years in the botanical garden. Nelumbo nucifera Betsy grows intensively, flowering occurred in the third year after sowing, leaf diameter 57 ± 3 cm, height above the water surface 78 ± 7 cm, flowering duration 73 ± 7 days, which is longer than that of the nut-bearing lotus, full-fledged seeds are formed.

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Reaction of Landscapes of the North Caucasus on the Current Climatic Changes

Cited by 3 publications

References 0 publications

Specific changes in main climatic characteristics of the Debed river basin (Armenia)

Specific changes in main climatic characteristics of the Debed river basin (Armenia)

Mapping of modern variability of agro‐climatic conditions of the North Caucasus

Lotus growth and development in artificial water bodies in the conditions of the Stavropol Upland

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