Irreversible transformations of the morphogenetic parameters cultivated pale soils of the cryolithozone under the influence of the initial stages of alas formation
https://doi.org/10.31242/2618-9712-2019-24-1-82-91
Abstract
It was studied the soils of abandoned 30 years ago arable land within the Central Yakutia Plain. The area is located on the grounds with ice complex. During the global climate change the ice complex degradation occurs on the abandoned arable lands. The melting of the underground ice on the arable lands over the vast areas causes the formation of young thermokarst landforms on the surface of abandoned arable lands bylars. Bylars represent a combination of remnants in the form of mounds (up to 5–6 m in diameter) with subsidence between them and a polygonal network of hollows over the ices (0.3–1.5 m deep), formed as a result of thawing the upper part of the ice complex. The formation of a thermokarst microrelief leads to the transformation of a previously homogeneous soil cover of abandoned arable lands into a complex of polygonal character.
Supporting agencies: This work is the part of the state assignment of the IBPK SB RAS for the project V.54.1.2. "Identification of reversible and irreversible changes in the soil and soil cover of the permafrost region, nature of natural and anthropogenic ecological processes and the development of the fundamental principles of soil protection and cryolithozone soil cover in the context of increasing anthropogenic press and global changes" (0376-2018-0003; reg. AAAA numberA17-117020110057-7).
About the Authors
N. V. Filippov
Institute for Biological Problems of Cryolithozone SB RAS
Russian Federation
Russian Federation
FILIPPOV Nikolai Vasil'evich, Research Engineer, Institute for Biological Problems of Cryolithozone SB RAS, 41, pr. Lenina, Yakutsk, 677980, Russia, http://orcid.org/0000-0002-8686-6475, finiva88@mail.ru;
R. V. Desyatkin
Institute for Biological Problems of Cryolithozone SB RAS
Russian Federation
Russian Federation
DESYATKIN Roman Vasil'evich, Doctor of Biological Sciences, Chief Researcher, Institute for Biological Problems of Cryolithozone SB RAS, 41, pr. Lenina, Yakutsk, 677980, Russia, http://orcid.org/0000-0002-1289-5433, rvdes@ibpc.ysn.ru.
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Review
For citations:
Filippov N.V., Desyatkin R.V. Irreversible transformations of the morphogenetic parameters cultivated pale soils of the cryolithozone under the influence of the initial stages of alas formation. Arctic and Subarctic Natural Resources. 2019;24(1):82-91. (In Russ.) https://doi.org/10.31242/2618-9712-2019-24-1-82-91
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