Vegetation cover dynamics of the Mongolian semiarid zone according to multi-temporal LANDSAT imagery (the case of Darkhan test range)

Zharnikova, M. A.; Alymbaeva, Zh B; Ayurzhanaev, A. A.; Гармаев, Е. Ж.

doi:10.1088/1755-1315/48/1/012015

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…По ботанико-географическому районированию территория находится на стыке трех крупных геоботанических областей: Евро-Aзиатской таежной (хвойнолесной), Евро-Aзиатской степной и Афро-Азиатской пустынной и с севера на юг проходит через основные зонально-поясные типы растительности: горно-лесостепной пояс и степную, пустынно-степную и пустынную зоны (Lavrenko et al, 1991;Lavrenko, Karamysheva, 1992;Namzalov, 1994). Северная часть трансекта, охватывающая горную область, представлена настоящими степями в сочетании с луговыми (Zharnikova et al, 2016). Широкую полосу в центральной части субмеридионального трансекта в пределах Среднехалхаских волнистых равнин формируют дерновиннозлаковые сухие степи (Bazha et al, 2018).…”

Section: район исследованияunclassified

“…В структуре сообществ доминирующие позиции, наряду с дерновинными формами (Carex pediformis, Koeleria cristata), занимают корневищные злаки и травянистые широко распространены в центральноазиатской степной подобласти, где занимают основные площади. Они традиционно подразделяются на настоящие разнотравно-дерновиннозлаковые, сухие дерновинно-и корневищно-злаковые (Lavrenko et al, 1991) На полигоне «Дархан» выделена караганово-крыловоковыльная формация, отличающаяся присутствием в составе сообществ Caragana microphylla (Zharnikova et al, 2016). Данная формация представляет собой сильно сбитую степь со всеми индикаторами пастбищной дигрессии.…”

Section: фитоценотическая характеристика формаций и ассоциацийunclassified

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Analysis of phytocoenotic diversity of steppe vegetation of the Baikal-Gobi transect

Alymbaeva¹,

Zharnikova²

2022

Turczaninowia

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For the first time, the syntaxonomic diversity of steppe vegetation along the Baikal-Gobi transect was determined, represented by 49 associations belonging to 23 formations, 5 florocoenotypes, and 3 ecological-historical series. The classification construction according to the ecological-phytocoenotic dominant-determinant principle was based on data collected during field research and processed using traditional geobotanical methods: route reconnaissance studies, geobotanical descriptions, cluster and gradient analysis. Units of this approach give an idea of the current state of communities at a certain stage of succession, and syntaxa reflect the ecological features of vegetation inherent in the territory. This approach has an applied value, expressed, in particular, in mapping – the volume of the main syntaxa is smaller compared to the ecological-floristic approach, which makes it possible for a more meaningful analysis in large-scale mapping.

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Section: район исследованияunclassified

Section: фитоценотическая характеристика формаций и ассоциацийunclassified

Analysis of phytocoenotic diversity of steppe vegetation of the Baikal-Gobi transect

Alymbaeva¹,

Zharnikova²

2022

Turczaninowia

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Geochemical transformation of soil cover and woody vegetation in the largest industrial and transport center of Northern Mongolia (Darkhan)

Кошелева¹,

Timofeev²,

Касимов³

et al. 2019

Applied Geochemistry

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Vegetation cover dynamics of Russia and Mongolia border territories

Sodnomov

Ayurzhanaev

Tsydypov

et al. 2019

IOP Conf. Ser.: Earth Environ. Sci.

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Desertification is one of the most complex environmental problems in the Central Asian region. In addition to climatic factors affecting land degradation, in the border territories of Russia and Mongolia the intensification of desertification processes is influenced by human activities. A cartographic analysis of meteorological parameters, as well as vegetation state and dynamics spatial distribution based on the NDVI, was carried out. Dry zones occupy 65% of the area of Russia-Mongolia border territories. The prevailing climate zone is a semi-arid. The features of the dynamics of vegetation in the wet (1982-1999) and drought (2000-2015) periods are revealed. In the period from 1982 to 2015 a positive trend of NDVI is observed for 78% of the border areas and negative is for 22%. During the wet period the area of negative trends for both Russia and Mongolia amount 1.5% of the territory, primarily due to deforestation. The drought period is characterized by a nearly twentyfold increase in the areas of negative NDVI trends for the whole border territory. The analysis of the correlation of meteorological parameters and vegetation revealed that in drylands with negative NDVI trend, climate-induced desertification covers 63%, and anthropogenic 37% of the total area affected by desertification.

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Vegetation cover dynamics of the Mongolian semiarid zone according to multi-temporal LANDSAT imagery (the case of Darkhan test range)

Cited by 4 publications

References 1 publication

Analysis of phytocoenotic diversity of steppe vegetation of the Baikal-Gobi transect

Analysis of phytocoenotic diversity of steppe vegetation of the Baikal-Gobi transect

Geochemical transformation of soil cover and woody vegetation in the largest industrial and transport center of Northern Mongolia (Darkhan)

Vegetation cover dynamics of Russia and Mongolia border territories

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