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Salt displacement into drain tiles under ponded leaching
Author(s) -
Miyamoto S.,
Warrick A. W.
Publication year - 1974
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr010i002p00275
Subject(s) - ponding , leaching (pedology) , geotechnical engineering , groundwater , displacement (psychology) , environmental science , water repellent , geology , soil science , drainage , materials science , soil water , composite material , psychology , ecology , psychotherapist , biology
Steady state piston‐type displacement into drain tiles is analyzed mathematically when the ground surface is partially covered by an impermeable material or by ponding water away from the drains. By preventing the water from infiltrating directly over the drains a more uniform leaching pattern is attained. The result is to reduce the water required for leaching to the depth of drains by as much as one half. Experimental data obtained from sand tank models support this prediction.