A Water–Energy–Food Nexus Perspective on the Challenge of Eutrophication

Reddy, V. Ratna, Cunha, Davi G. F. and Kurian, Mathew, (2018). A Water–Energy–Food Nexus Perspective on the Challenge of Eutrophication. Water, 10(2), 1-13

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  • Sub-type Journal article
    Author Reddy, V. Ratna
    Cunha, Davi G. F.
    Kurian, Mathew
    Title A Water–Energy–Food Nexus Perspective on the Challenge of Eutrophication
    Appearing in Water
    Volume 10
    Issue No. 2
    Publication Date 2018-01-26
    Place of Publication Basel
    Publisher Multidisciplinary Digital Publishing Institute (MDPI)
    Start page 1
    End page 13
    Language eng
    Abstract This paper attempts to understand and explore the problem of eutrophication in the context of agriculture with the help of a nexus perspective. Eutrophication is significantly linked to water and energy resources with theoretically well-defined trade-offs and threshold levels. While looking at the linkages between water and land resources comprehensively, our paper questions the present approach to designing and implementing watershed management, and analyses the effects of agricultural intensification, especially in dry regions. Eutrophication is the process by which excessive nutrient loads in water bodies lead to undesirable water-quality problems and the degradation of the overall aquatic ecosystem. Due to limited information and knowledge on water and soil quality in most countries, farmers continue to use fertilizers at an increasing rate and agricultural run-off has been carrying ever more nitrogen and phosphorus into water bodies. This is likely to become a vicious cycle of eutrophication affecting food and water security. Of late, soil- and water-conservation interventions, like watershed development, are further reducing run-off. It is argued that there is a need to rethink the assumptions under which watershed interventions are designed and implemented.
    UNBIS Thesaurus EUTROPHICATION
    Keyword Water-energy-food nexus
    Trade-offs
    Typologies
    Resource scarcity
    Political economy
    Copyright Holder The Authors
    Copyright Year 2018
    Copyright type Creative commons
    DOI 10.3390/w10020101
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    Created: Thu, 15 Feb 2018, 19:31:25 JST by Claudia Matthias on behalf of UNU FLORES