气候变化领域集成服务门户(CCPortal): Changes in vegetation and geocryological conditions of the tazovsky peninsula (eastern part) for the period of 19882016

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DOI	10.21782/KZ1560-7496-2017-6(3-13)
	Changes in vegetation and geocryological conditions of the tazovsky peninsula (eastern part) for the period of 19882016
	Moskovchenko D.V.; Arefyev S.P.; Glazunov V.A.; Tigeev A.A.
发表日期	2017
ISSN	15607496
卷号	21 期号:6
英文摘要	Based on field geobotanical descriptions, remote sensing data and analysis of tree-ring chronologies, the dynamics of vegetation in the eastern part of the Tazovsky Peninsula has been studied. The dynamic of vegetation has been shown to be caused by climate changes, and the radial growth of larch, as well as drainage of thermokarst lakes, increases under the influence of climate warming. Reduction in the area of lakes proved to be 20 %, corresponding to the maximal parameters in Western Siberia, suggesting activation of thermoerosion processes. Radial growth of larch has increased at the watershed more than in the floodplain, indicating an increase in the thickness of the active layer and levelling of the temperature field in various landscape conditions. Anthropogenic succession of vegetation was caused by disturbances during development of the Yurkharovskoye gas field. The sedge-cotton grass and grassy-herb communities of drained lakes (“khasyreys”) are restored most rapidly (within 3-4 years) after anthropogenic disturbances. However, the process of formation of dwarf birch-shrub-lichen-moss communities in their place, accompanied by a decrease in the depth of seasonal thawing, takes more than 30 years. The off-road vehicle tracks and other linear disturbances on satellite images can be traced for 12-20, in rare cases 25 years. Calculation of the normalized difference vegetation index (NDVI) has demonstrated its dependence on air temperatures in the summer and the amount of precipitation of the preceding period, starting from the date of snow cover formation. © Academic Publishing House Geo. All rights reserved.
英文关键词	Climate changes; Cryogenic processes; Dynamic of vegetation; Tazovsky Peninsula; Tree-ring width chronologies; Tundras
学科领域	air temperature; chronology; climate change; NDVI; remote sensing; snow cover; tree ring; tundra; vegetation dynamics; Russian Federation; Siberia; Taz Peninsula; Yamalo-Nenets; Betula nana; Bryophyta; Gossypium hirsutum; Larix
语种	英语
scopus关键词	air temperature; chronology; climate change; NDVI; remote sensing; snow cover; tree ring; tundra; vegetation dynamics; Russian Federation; Siberia; Taz Peninsula; Yamalo-Nenets; Betula nana; Bryophyta; Gossypium hirsutum; Larix
来源期刊	Earth's Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119475
作者单位	Tyumen State University, 10, Semakova str., Tyumen, 625003, Russian Federation; Institute of the Problems of Northern Development, Tyumen Scientific Centre SB RAS, 86, Malygina str., Tyumen, 625003, Russian Federation
推荐引用方式 GB/T 7714	Moskovchenko D.V.,Arefyev S.P.,Glazunov V.A.,et al. Changes in vegetation and geocryological conditions of the tazovsky peninsula (eastern part) for the period of 19882016[J],2017,21(6).
APA	Moskovchenko D.V.,Arefyev S.P.,Glazunov V.A.,&Tigeev A.A..(2017).Changes in vegetation and geocryological conditions of the tazovsky peninsula (eastern part) for the period of 19882016.Earth's Cryosphere,21(6).
MLA	Moskovchenko D.V.,et al."Changes in vegetation and geocryological conditions of the tazovsky peninsula (eastern part) for the period of 19882016".Earth's Cryosphere 21.6(2017).