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Salt and water transfer in frozen soils induced by gradients of temperature and salt content

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  • Anatoli Brouchkov

Abstract

Experiments were undertaken for 12 years at the Amderma permafrost station on the long‐term influence of temperature and salinization gradient on frozen soils. Temperature gradients were maintained at about 0.05°C/cm. Salt migration studies were carried out on samples containing two soil parts with different salt content. There was a change in the cryogenic structure of samples, notably the form and size of ice lenses, under the influence of the temperature gradient. However, only local migration of water and salt occurred and there was no transfer from one side of the sample to the other. At the salt content gradient used, there was a migration of salt over the 12‐year period. Copyright © 2000 John Wiley & Sons, Ltd. Des expériences ont été poursuivies pendant 12 ans à la station d'études du pergélisol d'Amderma sur l'influence à long terme de la température et du gradient de salinisation dans les sols gelés. Les gradients de température ont été maintenus à environ 0.05°C/cm. Des études de la migration du sel ont été poursuivies sur des échantillons avec différents contenus en sels. Il y a eu un changement dans la structure cryogénique des échantillons et notamment de la forme et la taille des lentilles de glace sous l'influence du gradient de température. Toutefois, seulement une migration locale d'eau et de sel s'est produite et il n'y a eu aucun transfert d'une partie de l'échantillon à l'autre. Avec le gradient de contenu en sel utilisé, il y a eu une migration du sel au cours de ces 12 années. Copyright © 2000 John Wiley & Sons, Ltd.

Suggested Citation

  • Anatoli Brouchkov, 2000. "Salt and water transfer in frozen soils induced by gradients of temperature and salt content," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 11(2), pages 153-160, April.
  • Handle: RePEc:wly:perpro:v:11:y:2000:i:2:p:153-160
    DOI: 10.1002/1099-1530(200004/06)11:23.0.CO;2-Y
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    Cited by:

    1. Li, Yunlong & Fu, Qiang & Li, Tianxiao & Liu, Dong & Hou, Renjie & Li, Qinglin & Yi, Ji & Li, Mo & Meng, Fanxiang, 2021. "Snow melting water infiltration mechanism of farmland freezing-thawing soil and determination of meltwater infiltration parameter in seasonal frozen soil areas," Agricultural Water Management, Elsevier, vol. 258(C).

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