Premium
Freezing and Thawing Effects on Drainage
Author(s) -
Benoit G. R.,
Bornstein J.
Publication year - 1970
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1970.03615995003400040007x
Subject(s) - drainage , soil water , environmental science , water retention , soil science , water content , soil structure , hydrology (agriculture) , geology , geotechnical engineering , ecology , biology
Laboratory studies were conducted on insulated models containing coarse sand (1–2 mm), fine sand (0.5–1 mm) and soil (0–2 mm and 2–4.8 mm) to determine the effects of freezing and thawing on sloping land drainage. Interrelations between structure and texture, rates and extent of ice formation, and rates and magnitudes of drainage were determined. Decreasing temperatures and subsequent ice formation decreased the relative mobility of water, thereby increasing water retention and decreasing rates of water transmission. The magnitude of the short‐term, freeze‐thaw effects on soil water retention and transmission was influenced by soil aggregate size, aggregate stability, and soil water content during freezing. On a long‐term basis, drainage that results in a consistently lower water content during freeze‐thaw cycles may lead to a changed soil structure and thus a changed drainage requirement.