(C) Kyle Glenn, Unsplash
Modelling and Assessment

Nexus Modelling // Towards Ranking the Water–Energy–Food–Land Use–Climate Nexus Interlinkages for Building a Nexus Conceptual Model with a Heuristic Algorithm

By Chrysi S. Laspidou, Nikolaos Mellios and Dimitris Kofinas. In this article, a practical heuristic approach for gaining a systemic and contextual perspective on nexus component interlinkages is presented, by building on a simple three-point typology of interactions. The approach is simple and can be applied in any case study a nexus analysis is pursued, regardless of data availability.

The concept of the Water–Energy–Food nexus (WEF), as documented by the United Nations Food and Agriculture Organization (FAO), suggests that the three resources are thoroughly interrelated, shaping a complicated web of interlinkages. Perceiving the three commodities as an interdependent variable system, rather than isolated subsystems is a step towards a more holistic approach, and thus a prerequisite to introducing a sustainable scheme for better managing resources.

In this work, the well-documented WEF nexus is broadened to a five-dimensional nexus, also involving land use and climate. A methodology for drawing the interrelations among the five dimensions and unreeling the complicated system of direct and indirect interlinkages is given.

The intensity of interlinkages among nexus components is initially assessed through a three-point typology with interlinkage scoring corresponding to resource use in Greece. The typology is used and is further expanded to quantify successfully all interlinkages among nexus components with a proposed heuristic algorithm.

Results are used to create the cross-interlinkage matrix that identifies food as the most influencing resource and water as the resource mostly influenced by other nexus elements. Results show that indirect interlinkages of multiple resources can be very significant and should not be ignored when planning nexus-coherent policy initiatives and investments in different sectors, in order to promote resource efficiency.

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Water Open Access Journals (open access)

Published

February 2019

In

Water 2019, 11(2), 306

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Governance

WEF Nexus Research // Solar Energy Farming as a Development Innovation for Vulnerable Water Basins

By Mohammad Al-Saidi and Nisreen Lahham. This article evaluates a project from the Azraq Basin in Jordan, and presents similar international experiences, particularly from India. It assesses solar energy farming as an innovation from a water-energy-food nexus perspective.

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Resource

Learning // The Nexus Game

The Nexus Game gives participants a unique opportunity to get an insight into the challenges of water management for producing energy and food, fulfilling the needs of the population, and sustaining environmental flows. The aim of the game is to provide an opportunity to practice how different water management policies can lead to the sustainable development of society in harmony with Nature.

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Research

Blog // What can Transdisciplinarity give back to Communities?

This article presents a research project conducted by the STEPS Centre, using the WEFE Nexus as a conceptual tool for transdisciplinary engagement through urban gardening in the peripheral area Novo Recreio in north Guarulhos, part of the Metropolitan Region of São Paulo, Brazil. It shows the notion of the WEFE Nexus has the potential to bring people together across different siloes, organisations, identities, institutions, levels and sectors. But could it contribute to wider struggles against...

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