Abstract

ABSTRACT Insufficient water for irrigation is a common problem in the Canterbury Region of New Zealand. Farmers have the option of applying for resource consent or joining a community irrigation scheme to take water. Water supply becomes more problematic during drought seasons as farmers must adhere to water restrictions imposed by the water authority. To deal with this problem, we developed an agent-based irrigation management system that can be used by farmers to calculate the ideal crop water needs on individual farms, which is particularly useful during periods of water scarcity. During water scarcity, most farms will have shortages of water. However, it is possible that there are farmers who will have excess water that could be distributed to those who need it. By doing this, farmers with excess water can make more profit and those who do not have enough water can purchase water to reduce their losses. In this work, we explore how auction-based negotiation in a multi-agent setting can be used to maximise water sharing within a community during periods of water scarcity. We evaluate various auction mechanisms that can be used to distribute excess water. In addition, we investigate the effect of various different agents' behaviours on water distribution and community profit.

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