Evaluation of water level fluctuations in the irrigation and drainage network of Ramshir, Khuzestan province

Subject Areas : Optimizing water consumption

Parvaneh Zaheri abdehvand ¹ , Davoud Khodadadi Dehkordi ²

1 - MSc Student, Department of Water Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2 - Assistant Professor, Department of Water Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

Received: 2024-09-25 Accepted : 2025-01-04 Published : 2025-03-19

Keywords: Drain outlet, Laterals distance, Observation well, Water table.,

Abstract :

In drainage plans, the performance evaluation of underground drains in controlling the water table level and soil salinity is very important. In this study, the performance of underground drainages and water table level fluctuations in the Ramshir region of Khuzestan province was investigated with the aim of controlling the water table level. For this purpose, a farm (Farm E) with 70-meter underground drain intervals was selected in the study area. Observation wells on three drainage pipes and at distances of 0.3, 0.8, 1.5, 2.5, and 15 meters from the lateral and in the middle between two drainage lines in four rows (a quarter of the lateral length, two-quarters of the lateral length, three-quarters of the lateral length and 25 meters from the drain outlet) were installed. After digging, constructing, and equipping the observation wells in three irrigation times, after passing one day of irrigation, the level of the water table in the wells was read. According to the investigation of the water table level of the drains and the RGWD index, it was found that the desired laterals in the studied farm have performed well in controlling the water table level.

 

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