GIS user-interface based irrigation delivery performance assessment: a case study for Tanjung Karang rice irrigation scheme in Malaysia

Various indicators are used for evaluating the performance of different aspects of an irrigation system, and assessments also differ in terms of the types of performance indicators used. This paper describes a GIS-based assessment system which utilizes a new concept and evaluated the inadequacy of a...

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Bibliographic Details
Published in:Irrigation and drainage systems 2011-06, Vol.25 (2), p.97-120
Main Authors: Rowshon, M. K, Amin, M. S. M, Shariff, A. R. M
Format: Article
Language:English
Subjects:
Agriculture
Aquatic Pollution
Assessments
Biomedical and Life Sciences
case studies
Climate Change
computers
decision support systems
Decisions
demand
Environment
field experimentation
Field tests
Geographic information systems
Indicators
Irrigation
irrigation management
Irrigation systems
Life Sciences
Oryza sativa
Performance assessment
Ponding
Rice
seasons
Sustainable Development
user interface
Waste Water Technology
water
Water allocation
Water demand
Water distribution
Water Management
Water Pollution Control
Water resources management
Water supplies
Water supply
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Summary:Various indicators are used for evaluating the performance of different aspects of an irrigation system, and assessments also differ in terms of the types of performance indicators used. This paper describes a GIS-based assessment system which utilizes a new concept and evaluated the inadequacy of a widely used Relative Water Supply (RWS) concept to characterize the irrigation delivery performance for a rice irrigation system as the season advances. Development of this GIS-based assessment system resulted in the creation of new indicators, viz., the Rice Relative Water Supply (RRWS), Cumulative Rice Relative Water Supply (CRRWS) and Ponding Water Index (PWI). These indicators were determined from field tests and evaluated in a Malaysian Tanjung Karang Rice Irrigation Scheme (TAKRIS). The RWS concept was found to be inaccurate for characterizing the oversupply condition on irrigation deliveries for rice irrigation; and difficult to correctly quantify the oversupply condition for irrigation supplies. Besides, it was found that the RRWS indicator can distinctly characterize the oversupply condition for RRWS > 1.0 and undersupply condition for RRWS 
ISSN:0168-6291
1573-0654
1573-0654
0168-6291
DOI:10.1007/s10795-011-9115-0