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Guidance for Sustainable On-farm and On-scheme Irrigation Water Measurement
Expanded Title:The results of this technology transfer project can be summarized in four key messages for potential users of measuring devices for irrigation water. Assign the responsibility for implementation to a skilled person: A knowledgeable and skilled person employed by the Water User Association (WUA) or Irrigation Board is required if water measurement is to be implemented successfully. Such a person should preferably have a technical background and be involved with the process of implementation right from the start, to ensure that they share all the experiences in the process of finding a sustainable measurement solution for the area under consideration. This person must be able to develop a measurement system for the specific situation and also be able to see to the day-to-day operation and maintenance of the measuring devices (with assistance if necessary). Preparation is key: In order to find the best solution, it is recommended that any possible technology that is being considered for wide-scale implementation must first be evaluated on a trial basis to obtain first-hand experience with its installation, operation and maintenance requirements. It is better to try out as many technologies as possible on a small scale before making a final selection, as this can prevent inappropriate, costly systems from being purchased that may become redundant after a short while of operation. The cost of single units of a few different technologies is money well-spent in view of selecting the best solution. Commit to an implementation plan: Any project should be planned and implemented as simply and practically as possible – unnecessary complication is a threat to successful project implementation. This can only be achieved if knowledgeable implementing agents manage the project through careful planning and in-depth assessment of the situation presenting itself, as every project will be different in its own right and therefore require site-specific solutions, an outcome that will hopefully be achieved through the careful application of the proposed implementation guidelines and plan. Install the most appropriate technology that can be afforded: Research work undertaken over the last 10 years has shown that suitable technologies and devices are available for the measurement of irrigation water, even in challenging situations with regards to aspects such as water quality and installation conditions. Failure of measuring devices or systems can usually be blamed on incorrect selection, application, installation or maintenance rather than on the technology itself. Under demanding conditions, it is imperative that the best technology or device available and affordable is obtained, to ensure a sustainable system that will serve the purpose that the owners of the system intended it for. The benefits of a suitable system will pay for itself within a short period of time but an unreliable system will only cause frustration and lead to unnecessary expenses and an additional work load on the water managers of a scheme.
Date Published:01/12/2012
Document Type:Research Report
Document Subjects:Agricultural Water - Commercial irrigation, Agricultural Water - Small holder irrigation
Document Format:Report
Document File Type:pdf
Research Report Type:Technical
WRC Report No:TT 550/12
ISBN No:978-1-4312-0373-4
Authors:van der Stoep I; Pott A; Viljoen JH; van Vuuren AMJ
Project No:K5/1778
Originator:WRC
Organizations:WSM Leshika Consulting (Pty) Ltd
Document Size:6 554 KB
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