Evaluating irrigation system performance: A case study in East Java, Indonesia
Kelley, Timothy Gerard
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Permalink
https://hdl.handle.net/2142/20280
Description
Title
Evaluating irrigation system performance: A case study in East Java, Indonesia
Author(s)
Kelley, Timothy Gerard
Issue Date
1989
Committee Member(s)
Johnson, Sam H., III
Department of Study
Agricultural and Consumer Economics
Discipline
Agricultural Economics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Economics, Agricultural
Language
eng
Abstract
Specialists and donor groups alike claim that most public irrigation systems in Asia operate well below their potential; yet there is a very little quantitative information on the extent to which these systems are achieving performance objectives. This study develops a methodology to evaluate both operations and distribution rule performance, addressing the problem of efficient and equitable allocation of limited irrigation water across units of large public irrigation systems in Indonesia. The site chosen for the study was the Warujayeng Irrigation Project (WIP) scheme in East Java.
"Operations performance analysis revealed that current field management practices at WIP deviate substantially from the prescribed ""Factor Palawija Relative"" (FPR) allocation and delivery procedures. Bias in water delivery, imposition of a rigid rotation scheme during critical shortage periods and the divergence of methods used by sub-section managers to calculate planned allocations seriously restrict proper planning and implementation of the standard procedures. To the extent that closer adherence to standard operating procedures is a goal in its own right, there currently exists considerable potential for improvement in performance at WIP."
Distribution rule performance simulation results indicate potential for improving water use efficiency and equity through adoption of a modified version of the FPR distribution rule. Recommendations for achieving a more efficient and equitable distribution of water are proposed and include: closer monitoring of field activities, training programs for irrigation management staff, and provision of incentives for achieving better overall performance. Simultaneous implementation of an alternative distribution rule and imposition of procedures designed for stricter adherence to those procedures would result in 50% higher total net returns from the WIP.
Results suggest that considerable improvement in efficiency and equity could be realized through proper design and implementation of alternative distribution rules. This is true for technical irrigation systems in Indonesia and throughout Asia where publicly-managed systems predominate.
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