Abstract Increasing the efficiency of on-farm water use requires wise decisions on the irrigation system, the irrigation strategy and the method to schedule irrigation, among other factors related to water management. Since the early 2000s, the water productivity approach has been widely used to address this issue. It provides useful indicators to both the biophysical water productivity and the economic performance of irrigation. Analysis of the literature, however, shows both confusion on the use of terms and lack of agreement on the equations. We have addressed the rational use of the water productivity approach for the irrigator to improve both biophysical and economic water productivity at the field scale. We also addressed the increasing use of the water footprint approach at the field scale. The literature shows a lack of consensus on the reliability of the conceptual framework behind that approach. We focused on its potential for irrigation decision making, and concluded that it is not advantageous, as compared to the water productivity approach, for assessing on-farm water use. In addition, we show a case study of a super high density olive orchard which analyses the joint use of economic water productivity indicators and both production and profit functions to improve decision making.

中文翻译：

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农田灌溉决策用水指标与经济分析：以超高密度橄榄园为例

摘要 提高农场用水效率需要对灌溉系统、灌溉策略和灌溉计划方法以及与水管理相关的其他因素做出明智的决策。自 2000 年代初以来，水资源生产率方法已被广泛用于解决这一问题。它为生物物理水生产力和灌溉的经济绩效提供了有用的指标。然而，对文献的分析表明，术语的使用混淆了，方程上缺乏一致性。我们已经解决了灌溉器用水生产率方法的合理使用问题，以提高田间规模的生物物理和经济用水生产率。我们还解决了在现场规模上越来越多地使用水足迹方法的问题。文献表明对该方法背后的概念框架的可靠性缺乏共识。我们专注于灌溉决策的潜力，并得出结论，与水生产力方法相比，它在评估农场用水方面没有优势。此外，我们还展示了一个超高密度橄榄园的案例研究，该研究分析了经济用水生产力指标以及生产和利润函数的联合使用，以改进决策。