Soil infiltration characteristics and pore distribution under freezing–thawing conditions
Frozen soil infiltration widely occurs in hydrological processes such as seasonal soil freezing and thawing, snowmelt infiltration, and runoff. Accurate measurement and simulation of parameters related to frozen soil infiltration processes are highly important for agricultural water management, envi...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:ac9f4590ebff4db0acb8e4d43502a918 2023-05-15T18:32:18+02:00 Soil infiltration characteristics and pore distribution under freezing–thawing conditions R. Jiang T. Li D. Liu Q. Fu R. Hou Q. Li S. Cui M. Li 2021-05-01 https://doi.org/10.5194/tc-15-2133-2021 https://tc.copernicus.org/articles/15/2133/2021/tc-15-2133-2021.pdf https://doaj.org/article/ac9f4590ebff4db0acb8e4d43502a918 en eng Copernicus Publications doi:10.5194/tc-15-2133-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/2133/2021/tc-15-2133-2021.pdf https://doaj.org/article/ac9f4590ebff4db0acb8e4d43502a918 undefined The Cryosphere, Vol 15, Pp 2133-2146 (2021) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5194/tc-15-2133-2021 2023-01-22T19:11:20Z Frozen soil infiltration widely occurs in hydrological processes such as seasonal soil freezing and thawing, snowmelt infiltration, and runoff. Accurate measurement and simulation of parameters related to frozen soil infiltration processes are highly important for agricultural water management, environmental issues, and engineering problems in cold regions. Temperature changes cause soil pore size distribution variations and consequently dynamic infiltration capacity changes during different freeze–thaw periods. To better understand these complex processes and to reveal the freeze–thaw action effects on soil pore distribution and infiltration capacity, black soils, meadow soils, and chernozem were selected as test subjects. These soil types account for the largest arable land area in Heilongjiang Province, China. Laboratory tests of soils at different temperatures were conducted using a tension infiltrometer and ethylene glycol aqueous solution. The stable infiltration rate and hydraulic conductivity were measured, and the soil pore distribution was calculated. The results indicated that for the different soil types, macropores, which constituted approximately 0.1 % to 0.2 % of the soil volume under unfrozen conditions, contributed approximately 50 % of the saturated flow, and after soil freezing, the soil macropore proportion decreased to 0.05 % to 0.1 %, while the saturated flow proportion decreased to approximately 30 %. Soil moisture froze into ice crystals inside relatively large pores, resulting in numerous smaller-sized pores, which reduced the number of macropores but increased the number of smaller-sized mesopores, so that the frozen soil infiltration capacity was no longer solely dependent on the macropores. After the ice crystals had melted, more pores were formed within the soil, enhancing the soil permeability. Article in Journal/Newspaper The Cryosphere Unknown The Cryosphere 15 4 2133 2146 |
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English |
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geo envir R. Jiang T. Li D. Liu Q. Fu R. Hou Q. Li S. Cui M. Li Soil infiltration characteristics and pore distribution under freezing–thawing conditions |
topic_facet |
geo envir |
description |
Frozen soil infiltration widely occurs in hydrological processes such as seasonal soil freezing and thawing, snowmelt infiltration, and runoff. Accurate measurement and simulation of parameters related to frozen soil infiltration processes are highly important for agricultural water management, environmental issues, and engineering problems in cold regions. Temperature changes cause soil pore size distribution variations and consequently dynamic infiltration capacity changes during different freeze–thaw periods. To better understand these complex processes and to reveal the freeze–thaw action effects on soil pore distribution and infiltration capacity, black soils, meadow soils, and chernozem were selected as test subjects. These soil types account for the largest arable land area in Heilongjiang Province, China. Laboratory tests of soils at different temperatures were conducted using a tension infiltrometer and ethylene glycol aqueous solution. The stable infiltration rate and hydraulic conductivity were measured, and the soil pore distribution was calculated. The results indicated that for the different soil types, macropores, which constituted approximately 0.1 % to 0.2 % of the soil volume under unfrozen conditions, contributed approximately 50 % of the saturated flow, and after soil freezing, the soil macropore proportion decreased to 0.05 % to 0.1 %, while the saturated flow proportion decreased to approximately 30 %. Soil moisture froze into ice crystals inside relatively large pores, resulting in numerous smaller-sized pores, which reduced the number of macropores but increased the number of smaller-sized mesopores, so that the frozen soil infiltration capacity was no longer solely dependent on the macropores. After the ice crystals had melted, more pores were formed within the soil, enhancing the soil permeability. |
format |
Article in Journal/Newspaper |
author |
R. Jiang T. Li D. Liu Q. Fu R. Hou Q. Li S. Cui M. Li |
author_facet |
R. Jiang T. Li D. Liu Q. Fu R. Hou Q. Li S. Cui M. Li |
author_sort |
R. Jiang |
title |
Soil infiltration characteristics and pore distribution under freezing–thawing conditions |
title_short |
Soil infiltration characteristics and pore distribution under freezing–thawing conditions |
title_full |
Soil infiltration characteristics and pore distribution under freezing–thawing conditions |
title_fullStr |
Soil infiltration characteristics and pore distribution under freezing–thawing conditions |
title_full_unstemmed |
Soil infiltration characteristics and pore distribution under freezing–thawing conditions |
title_sort |
soil infiltration characteristics and pore distribution under freezing–thawing conditions |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-2133-2021 https://tc.copernicus.org/articles/15/2133/2021/tc-15-2133-2021.pdf https://doaj.org/article/ac9f4590ebff4db0acb8e4d43502a918 |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 2133-2146 (2021) |
op_relation |
doi:10.5194/tc-15-2133-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/2133/2021/tc-15-2133-2021.pdf https://doaj.org/article/ac9f4590ebff4db0acb8e4d43502a918 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-15-2133-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
4 |
container_start_page |
2133 |
op_container_end_page |
2146 |
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