气候变化领域集成服务门户(CCPortal): The temperature regime of soils in Northern Yakutia

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DOI	10.21782/KZ1560-7496-2018-4(15-24
	The temperature regime of soils in Northern Yakutia
	Fedoryov-Davydov D.G.; Davydov S.P.; Davydova A.I.; Ostroymov V.E.; Kholodov A.L.; Sorokovikov V.A.; Shmelev D.G.
发表日期	2018
ISSN	15607496
卷号	22 期号:4
英文摘要	Soils in Northern Yakutia differ in average duration of the season of positive temperatures, the difference being 2.3 times between soil types and 1.8 between zonal loam soils, at a depth of 20 cm. The seasons of >0°C and >5°C soil temperatures may be shorter in wetter boggy areas with thicker organic horizons. The durations of fall freezing and persistent near-zero temperatures vary from 1-2 months for tundra cryozems and gleyzem (Turbic Glacic Cryosols) to 2.5-3.5 months for taiga cryometamorphic soils (Cambic Turbic Cryosols), peatcryozem (Folic Cryosol), and tundra podburs (Spodic Turbic Cryosols). The active layer freezes mostly from above (top to base), except some years of cool summers mainly in the tundra zone when it freezes partly from below. The tundra and taiga soils show a warming trend of the soil climate since the late 1990s according to dynamics of annual freezing degree-day sums. The soils of Northern Yakutia vary in total heat spent on the active layer warming Qt > 0, the difference reaching 10 times. © 2018 Academic Publishing House Geo. All rights reserved.
英文关键词	Active layer; Freezing of active layer from above and from below; Near-zero temperatures; Northern Yakutia; Soil climate change; Soil temperature regime; Zero curtain
学科领域	active layer; climate change; cryosphere; frozen ground; loam; permafrost; seasonal variation; soil temperature; summer; warming; Russian Federation; Sakha
语种	英语
scopus关键词	active layer; climate change; cryosphere; frozen ground; loam; permafrost; seasonal variation; soil temperature; summer; warming; Russian Federation; Sakha
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/119111
作者单位	Institute of Physicochemical and Biological Problems in Soil Science, RAS, 2, Institutskaya str., Pushchino, Moscow region, 142290, Russian Federation; North-Eastern Science Station, Pacific Geographical Institute, FEB RAS, P/O box 18, Cherskiy, Nizhnekolymskiy Region, Yakutia, 678830, Russian Federation
推荐引用方式 GB/T 7714	Fedoryov-Davydov D.G.,Davydov S.P.,Davydova A.I.,et al. The temperature regime of soils in Northern Yakutia[J],2018,22(4).
APA	Fedoryov-Davydov D.G..,Davydov S.P..,Davydova A.I..,Ostroymov V.E..,Kholodov A.L..,...&Shmelev D.G..(2018).The temperature regime of soils in Northern Yakutia.Earth's Cryosphere,22(4).
MLA	Fedoryov-Davydov D.G.,et al."The temperature regime of soils in Northern Yakutia".Earth's Cryosphere 22.4(2018).