SIMULATION OF DRY DRAINAGE TO DETERMINE THE RATIO OF THE WIDTH OF NONCROPPED TO CROPPED STRIPS

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DOOSTI AHMAD; SOTOODEHNIA ABBAS; LIAGHAT ABDOLMAJID; DANESHKAR ARASTEH PEYMAN

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Journal: Iranian Journal of Soil and Water Research Year:2014 | Volume:45 | Issue:1 Page(s): 47-54

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Title

SIMULATION OF DRY DRAINAGE TO DETERMINE THE RATIO OF THE WIDTH OF NONCROPPED TO CROPPED STRIPS

Author(s)

DOOSTI AHMAD | SOTOODEHNIA ABBAS | LIAGHAT ABDOLMAJID | DANESHKAR ARASTEH PEYMAN | Issue Writer Certificate

Keywords

CONTROLLING SOIL SALINIZATIONQ2

DRY DRAINAGEQ2

EVAPORATION FROM UNDER FALLOW AREASQ2

Abstract

Dry drainage is considered as a natural system in which water is made to evaporate from the neighboring fallow areas to control water table depth and soil salinity in the adjacent cropped areas. The technique demands for the retirement of part of the irrigated land. One of the most notable design criteria for this system is to estimate the ratio of cropped to fallow strip widths. A Plexiglas physical model with the dimensions of 60 cm length, 20 cm width and 50 cm height was designed and built. The model was divided into two equal parts where the first half was regularly irrigated while the other left as fallow during the test period. A précised scale was employed to record the evaporation rate. The minimum daily evaporation rate amounted to 2.7 mm when the soil was mainly covered with salt crusts. As this measured value is close to the common drainage coefficient in most parts, hence with a low risk, the ratio of 50% fallow area to 50% cropping was recommended. It seems however, that with a proper management together with salt scraping, one can expect a higher ratio of cropped to non-cropped ratio.

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APA: Copy

DOOSTI, AHMAD, SOTOODEHNIA, ABBAS, LIAGHAT, ABDOLMAJID, & DANESHKAR ARASTEH, PEYMAN. (2014). SIMULATION OF DRY DRAINAGE TO DETERMINE THE RATIO OF THE WIDTH OF NONCROPPED TO CROPPED STRIPS. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 45(1), 47-54. SID. https://sid.ir/paper/225951/en

Vancouver: Copy

DOOSTI AHMAD, SOTOODEHNIA ABBAS, LIAGHAT ABDOLMAJID, DANESHKAR ARASTEH PEYMAN. SIMULATION OF DRY DRAINAGE TO DETERMINE THE RATIO OF THE WIDTH OF NONCROPPED TO CROPPED STRIPS. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2014;45(1):47-54. Available from: https://sid.ir/paper/225951/en

IEEE: Copy

AHMAD DOOSTI, ABBAS SOTOODEHNIA, ABDOLMAJID LIAGHAT, and PEYMAN DANESHKAR ARASTEH, “SIMULATION OF DRY DRAINAGE TO DETERMINE THE RATIO OF THE WIDTH OF NONCROPPED TO CROPPED STRIPS,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 45, no. 1, pp. 47–54, 2014, [Online]. Available: https://sid.ir/paper/225951/en

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