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55675

EVALUATING THE IMPROVED IRRIGATION NETWORKS IN EGYPT

Article

Last updated: 22 Jan 2023

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Abstract

This study summarizes the results of evaluating the improved canals in Egypt. These results constituted a part of an evaluation programme that was conducted by Water Management Research Institute (WMRI) to evaluate the first phase of the Irrigation Improvement Project (IIP1). This part of the evaluation programme was built on measuring specific hydraulic indicators, such as Relative Water Supply (RWS) and Water Use Index (WUI) in improved and unimproved canals to assess achieving the targets of the improvement project. The programme concluded that most of the targets were not achieved yet illustrating that the main reason was the inappropriate operation of the system. The study illustrated that the chance to achieve the improvement targets should be mainly through the effective operation of the system. The introduced operation system was the continuous flow system, with which water supply will be provided to different branch canals continuously and on volumetric basis and an internal rotation will be applied between lifting points. The monitoring results showed that the actual applied system is a hybrid system between rotational system and continuous flow system. Under this hybrid system, the branch canals are open almost continuously, but water is distributed based on maintaining specific water levels downstream the head regulators without calculating the water volume or implementing an internal rotation between the lifting points. This system encourages farmers and especially head farmers in rice regions to use more water. The main recommendation of the study was to conduct intensive investigations to adapt the continuous flow to another suitable system that fit with the current circumstance of the irrigation networks and the current capacities of the irrigation directorates and Water Users Associations (WUAs). This introduced system might be an adapted version of the rotational system. The other recommendations include forming the improvement targets in a shape of certain responsibilities to encourage irrigation directorates achieving these targets and having certain strategies to face the environmental problems.

DOI

10.21608/jssae.2011.55675

Keywords

Irrigation Improvement Project, continuous flow, Water saving, Equity of water distribution

Authors

First Name

T. T.

Last Name

El-Gamal

MiddleName

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Affiliation

Water Management Res. Inst., National Water Res. Center, Delta Barrage, Egypt

Email

elgamalt@yahoo.com

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Volume

2

Article Issue

8

Related Issue

8493

Issue Date

2011-08-01

Receive Date

2011-08-07

Publish Date

2011-08-01

Page Start

843

Page End

859

Print ISSN

2090-3685

Online ISSN

2090-3766

Link

https://jssae.journals.ekb.eg/article_55675.html

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https://jssae.journals.ekb.eg/service?article_code=55675

Order

4

Type

Original Article

Type Code

889

Publication Type

Journal

Publication Title

Journal of Soil Sciences and Agricultural Engineering

Publication Link

https://jssae.journals.ekb.eg/

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Article

Created At

22 Jan 2023