Journal
ENVIRONMENTAL EARTH SCIENCES
Volume 74, Issue 1, Pages 675-681Publisher
SPRINGER
DOI: 10.1007/s12665-015-4072-9
Keywords
Cyclic freeze-thaw; Water and salt redistribution; Temperature gradient; Convection
Funding
- National Natural Sciences Foundation of China [41371090, 40901039]
- Science and Technology Major Projects of the Gansu Province [143GKDA007]
- State Key Laboratory of Frozen Soil Engineering of China [SKLFSE-ZT-08]
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Freeze-thaw action acts as a controlling mechanism for redistributing soil water and salt. The paper focuses on the factors that influence soil water and salt migration and uses experimental results to analyze the mechanism of cyclic freeze-thaw in which the temperature gradient is the principal factor for water and salt transfer. Salt redistribution in soil occurs as a result of the integrated effects of convection, diffusion, and numerous chemical and physicochemical processes.
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