The water-energy-food (WEF) nexus is the subject of much research focusing on different aspects, a wide range of issues, and development of a variety of models and tools. This study takes a different approach by developing a holistic framework that concentrates on the spatial elements of continuity and change associated with WEF transition on national, regional, and international scale. The study also investigates the interconnected challenges that could affect these resources and the actions and polices that should be taken on different geographical scales to address these challenges. The results can help practitioners and policy makers gain a clearer understanding of the state of the knowledge when performing WEF nexus assessments at different geographical scales.

水能源食品（WEF）的关系是许多研究的主题，重点在于不同方面，广泛的问题以及各种模型和工具的开发。这项研究采用了一种不同的方法，即建立了一个整体框架，该框架着眼于与国家，地区和国际范围内WEF过渡相关的连续性和变化的空间要素。该研究还调查了可能影响这些资源的相互关联的挑战，以及应对这些挑战应在不同地理范围内采取的行动和政策。结果可以帮助从业者和政策制定者在不同地理尺度上进行WEF关联评估时，对知识状态有更清晰的了解。