NDLI: Response of soil heat-water processes to vegetation cover on the typical permafrost and seasonally frozen soil in the headwaters of the Yangtze and Yellow Rivers

Content Provider	Springer Nature Link
Author	Hu, HongChang Wang, GenXu Wang, YiBo Liu, GuangSheng Li, TaiBing Ren, DongXing
Copyright Year	2009
Abstract	The response of soil temperature and moisture to vegetative cover in the active layer of permafrost and seasonally frozen soil were assessed and compared. Soil temperature and moisture, under a range of vegetation covers (92%, 65% and 30%) in the permafrost and vegetation covers (95%, 70%–80%, 40%–50% and 10%) in the seasonally frozen soil, were measured on a daily basis. A decline in vegetation cover led to a decrease in the integral of freezing depth of active permafrost layer, but an increase in seasonally frozen soil. The maximum invasion depth and duration of the negative isotherm during the frozen period and of the positive isotherm during the non-frozen period clearly increased when vegetation cover declined. With a reduction of vegetation cover, the soil moisture in the active layer of the permafrost decreased for depths of 0.20–0.60 m, but increased for depths of 0.60–0.80 m, while for seasonally frozen soil, soil moisture of the entire profile (0.10–1.20 m) increased. Variation in vegetation cover alters soil heat-water processes, but the response to it is different between permafrost and seasonally frozen soil.
Starting Page	1225
Ending Page	1233
Page Count	9
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	54
Issue Number	7
e-ISSN	18619541
Language	English
Publisher	SP Science in China Press
Publisher Date	2008-12-12
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	heat-water processes vegetation cover response headwaters of the Yangtze and Yellow Rivers Engineering Earth Sciences Chemistry/Food Science Physics Life Sciences Science
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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