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Irrigation system performance assessment and diagnosis. performance, performance indicators and performance frameworks. Design-management environments and irrigation system management objectives. Performance in fixed division systems. Performance in gated division systems. Lessons learned from the case studies. Proposition for improving performance. Sustaining irrigation performance.
This book draws together the knowledge that has been gained in irrigation and drainage performance assessment over the last 10 to 15 yers. Performance assessment is an essential management task. If the use of water for irrigation is to be improved, then we must understand current levels of performance and identify measures for improvement. This book provides guidelines to enable practitioners to apply the process and procedures that have evolved. Developed by a working group of the International Commission on Irrigation and Drainage (ICID), it provides a theory and practice of how to audit and assess the performance of irrigation and drainage schemes. This book will be of interes to researchers and professionals in irrigation, drainage, soils and agricultural engineering.
Introsuction; Performance indicatores for comparison; Features of the selected indicators; The indicators; Application; Temporal and spatial variation of indicators within a project; Limitations of the indicators; Interpretation of results; Discussion; data requirements to calculate performance indicators; Calculation example of performance indicators; World markrt prices of agricultural; products in constant 1995 dollars.
Water Management and Sustainability in Asia covers topics related to water resources management, including multi- and interdisciplinary research on flood, soil infiltration, contaminants, sediment, water quality, hydrological modelling, and water resources systems.
The book presents documentary evidence of the insufficiency of rehabilitation works to close the gap between the irrigation service and actual area irrigated of publicly funded national irrigation systems in the Philippines. It outlines a methodology for formulating a modernisation plan for national irrigation systems with focus on the mostly ungauged, medium to small canal irrigation systems. The proposed methodology adaptively modified some known modernisation concepts and techniques and integrated them in a more holistic framework in the context of changing weather patterns and river flow regimes. It includes in-depth review of rehabilitation works; system diagnosis; revalidation of design assumptions on percolation and water supply; characterisation of system management, irrigation service and demand; and drawing up of options and a vision for the modernised irrigation systems. Central to the proposed modernisation strategy is the logical coherence among the design of physical structures, system operation and water supply so that improvements of irrigation service are possible. The book discusses the development of the proposed methodology and demonstrates its utility in two case study irrigation systems.
Describes the use of satellite remote sensing and geographic information system techniques to obtain information on primary agricultural productivity and irrigation system performance in a large rice irrigation system in India. Discusses the potential and cost-effectiveness of SRS techniques for making inventories and monitoring agricultural productivity.
Sirsa irrigation circle and its distribution objectives. Canal water distribution in the Sirsa irrigation circle. Material and methods. Crop growing conditions, Rabi 1995/96. Hydrologic analysis for 1977-90. Water balance classifications. Agricultural practices as a function of hydrologic conditions. The performance of irrigates agriculture at Sirsa. Annex 1 - Annual water and salt balances in the Sirsa irrigation circle. Annex 2 - Cluster analysis. Annex 3 - Estimating the water consumption of a wheat crop. Literature cited.