CONVEYANCE AND DISTRIBUTION EFFICIENCIES IN GAZVIN PLAIN IRRIGATION NETWORK

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SOHRABI T.; JAVADPOUR BOROUJENI A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: AGRICULTURAL RESEARCH Year:2005 | Volume:5 | Issue:2 Page(s): 68-79

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Information Journal Paper

Title

CONVEYANCE AND DISTRIBUTION EFFICIENCIES IN GAZVIN PLAIN IRRIGATION NETWORK

Author(s)

SOHRABI T. | JAVADPOUR BOROUJENI A. | Issue Writer Certificate

Keywords

CONVEYANCE AND DISTRIBUTION EFTICIENCIESQ4

IRRIGATION NETWORKQ4

GAZVIN PLAINQ3

Abstract

Agricultural development in Iran depends on the amount of water and evaluation of the irrigation projects and determination of the goal achievement of the stages of planning, designing and construction is necessary. In this study, for performance evaluation of the Gazvin IRRIGATION NETWORK, some canal reaches were selected based on the quality of execution which is indicator of existing characteristics of the network. In each order of canal (1 to 4), three reaches were considered. Water loss in each teaches was measured with inflow and outflow method for four times starting March through August. Flow velocity was measured by current meter at two different depths of canal (0.2D and 0.8D). Then cross sections of canals were determined by measuring depth at different points of canal width.Average conveyance and distribution efficiency in canals from order 1 to 4 were 95.2, 90.5, 86.1, and 77.1%, respectively. Along the main canal conveyance efficiency was also determined by measuring the flow at the intake point of the network and discharge through outlets along the main canal then the ratio of sum of order 2 canal discharges to the total upstream discharge was obtained to be 94.8%. Due to lack of maintenance and repair of destroyed parts, particularly in distribution portion, IRRIGATION NETWORK has lost its effectiveness after thirty five years of operation. In western part of the IRRIGATION NETWORK which does not have long life, ineffectiveness was even more considerable.

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References

PERFORMANCE EVALUATION OF CONVEYANCE AND DISTRIBUTION CANALS IN GILAN AND FOUMANAT IRRIGATION NETWORK

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APA: Copy

SOHRABI, T., & JAVADPOUR BOROUJENI, A.. (2005). CONVEYANCE AND DISTRIBUTION EFFICIENCIES IN GAZVIN PLAIN IRRIGATION NETWORK. AGRICULTURAL RESEARCH, 5(2), 68-79. SID. https://sid.ir/paper/84665/en

Vancouver: Copy

SOHRABI T., JAVADPOUR BOROUJENI A.. CONVEYANCE AND DISTRIBUTION EFFICIENCIES IN GAZVIN PLAIN IRRIGATION NETWORK. AGRICULTURAL RESEARCH[Internet]. 2005;5(2):68-79. Available from: https://sid.ir/paper/84665/en

IEEE: Copy

T. SOHRABI, and A. JAVADPOUR BOROUJENI, “CONVEYANCE AND DISTRIBUTION EFFICIENCIES IN GAZVIN PLAIN IRRIGATION NETWORK,” AGRICULTURAL RESEARCH, vol. 5, no. 2, pp. 68–79, 2005, [Online]. Available: https://sid.ir/paper/84665/en

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