Water balance model as a tool for building participation and joint water use promotion at the river basin level^*

Abstract

© 2020 John Wiley & Sons, Ltd. To promote collaboration on water management between farmers and government agencies, both parties must have a mutual understanding of the measurement and management of available water resources using existing infra- and non-infrastructure management tools. They are required to provide collaborative water management through appropriate technology, with capacity building and knowledge management. In this study, the water balance model was used as a tool to induce participation and the promotion of a joint water use at the river basin level. The amount and proportion of water use from different types of water sources were calculated based on this water balance model. Moreover, farmers were encouraged to help with water flow measurements using technologies and principles that were simple but accurate in terms of engineering aspects. According to the analyses of water use proportions, a large amount of water from pumping stations was used during the dry season at high cost. When aware of the proportion of water used, farmers collaboratively established guidelines on an effective water management in the area, including large-scale viewpoints applicable beyond the actual areas. Overall, these guidelines will eventually bring positive results to other downstream water users. © 2020 John Wiley & Sons, Ltd.