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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Nguyen Duc Viet1, Nguyen Van Tinh1, Nguyen Tung Phong2 and Dang Ngoc Hanh2
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DOI:10.17265/2161-6256/2016.05.003
Affiliation(s)
1. Directorate of Water Resources, Ministry of Agriculture and Rural Development (MARD), Hanoi 100000, Vietnam
2. Vietnam Academy for Water Resources (VAWR), Hanoi 100000, Vietnam
ABSTRACT
In
Vietnam as well as many countries which apply the irrigated agriculture over
the world, the process of promoting the socialization trend in irrigation for
the basic irrigation organizations, of which the main factor is water users, is
very important. This paper aimed to optimize the decentralization of management
and exploitation of irrigation works for water users, organizations in Quan Lo-Phung
Hiep irrigation system of Mekong River Delta. The research has implemented a survey on 384
water users along four canals of level 2 of Quan Lo-Phung Hiep irrigation
system under two sets of index: (1) water users’
perception assessment of the irrigation works (14 indicators) and (2) assessment of the
management efficiency in the irrigation works (six indicators). The research proposes the
decentralization process from building. After determining the correlation
coefficients, the multi-objective linear regression equation will be shown on six single objective
functions. With the aim at achieving the highest efficiency in the management
and exploitation of the irrigation works, there should be a shift in terms of
the water users’ perception of the irrigation works. These study results also
demonstrate that about 65%-68% of the change in
the indicators of the exploitation efficiency in the irrigation works is explained by some water users’ perception indexes of
irrigation works, including the quality of irrigation service and the output
efficiency in agricultural production. By using the algorithm for multi-objective optimization problem, the
optimal results in perception are determined. The input data is generated for the matrix supporting the decision
making, and the decentralization of management and exploitation of irrigation works
meets the three criteria, i.e., effectiveness, sustainability and flexibility.
KEYWORDS
Decentralization, irrigation management and exploitation, water user, irrigation services, Quan Lo-Phung Hiep, Mekong River Delta.
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