Статья

An integrative analytical model for the water-energy-food nexus: South Africa case study

Luxon NhamoCentre for Transformative Agricultural and Food Systems, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Scottsville 3209, Pietermaritzburg, South AfricaTafadzwanashe MabhaudhiCentre for Transformative Agricultural and Food Systems, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Scottsville 3209, Pietermaritzburg, South AfricaSylvester MpandeliSchool of Environmental Sciences, University of Venda, Thohoyandou 0950, South AfricaChris DickensInternational Water Management Institute (IWMI), Pelawatte, Battaramulla, Colombo, Sri LankaCharles NhemachenaAlliance for a Green Revolution in Africa (AGRA), West End Towers, Nairobi, KenyaAidan SenzanjeSchool of Engineering, University of KwaZulu-Natal (UKZN), Scottsville 3209, Pietermaritzburg, South AfricaDhesigen NaidooWater Research Commission, Lynnwood Manor, Pretoria 0081, South AfricaStanley LiphadziWater Research Commission, Lynnwood Manor, Pretoria 0081, South AfricaAlbert Thembinkosi ModiCentre for Transformative Agricultural and Food Systems, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Scottsville 3209, Pietermaritzburg, South Africa

2020en

ABI

Аннотация

The missing link between cross-sectoral resource management and full-scale adoption of the water-energy-food (WEF) nexus has been the lack of analytical tools that provide evidence for policy and decision-making. This study defined WEF nexus sustainability indicators, from where an analytical model was developed to manage WEF resources in an integrated manner using the Analytic Hierarchy Process (AHP). The model established quantitative relationships among WEF sectors, simplifying the intricate interlinkages among resources, using South Africa as a case study. A spider graph was used to illustrate sector performance as related to others, whose management is viewed either as sustainable or unsustainable. The model was then applied to assess progress towards the Sustainable Development Goals in South Africa. The estimated integrated indices of 0.155 and 0.203 for 2015 and 2018, respectively, classify South Africa's management of resources as marginally sustainable. The model is a decision support tool that highlights priority areas for intervention.

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Идентификаторы

DOI: 10.1016/j.envsci.2020.04.010

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar