Water quality: the missing dimension of water in the water–energy–food nexus

Heal, Kate; Bartošová, Alena; Hipsey, Matthew R.; Chen, Xiaohong; Buytaert, Wouter; Li, Hong Yi; McGrane, Scott J.; Gupta, A.B.; Cudennec, Christophe

doi:10.1080/02626667.2020.1859114

Cited by 20 publications

(33 citation statements)

References 139 publications

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“…In WQ studies, one limitation often comes from the relative scarcity of in situ data worldwide (HEAL et al, 2021). The difficulty of acquiring in situ data often results in relatively small sample sizes being used for calibrating and validating WQ models (TOPP et al, 2020).…”

Section: Scientific and Technological Advancements In The Past Two De...mentioning

confidence: 99%

“…These data base can be invaluable for the validation and calibration of models developed for the quality of continental waters. The GEMStat Water Program is one such global data portal of the United Nations Environment Program (UNEP) hosted by the GEMS/Water Data Center (GWDC) of the International Centre for Water Resources and Global Change (ICWRGC), Koblenz, Germany (UNEP, 2021;HEAL et al, 2021). Through the portal https://gemstat.org/, it is possible to access WQ data from more than 75 countries on rivers, lakes and wetlands (TOPP et al, 2020).…”

Section: Scientific and Technological Advancements In The Past Two De...mentioning

confidence: 99%

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The Estimation of Water Quality Parameters in Lentic Environments Through Remote Sensing Technologies: a Review of the Past Two Decades

Pizani

Maillard

Amorim

2022

Rev. Bras. Cartogr.

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The use of remote sensing technology applied to measure the quality of continental waters has grown exponentially since the turn of the century. Using different sensors on board satellites or airborne platforms, the estimation of water quality parameters has been carried out through both empirical and analytical approaches. This work aims to review the specific scientific production of the last two decades to assess how the evolution of the sensors and platforms have affected the potential and the limitations of remote sensing technologies to estimate water quality parameters in lakes and reservoirs. The study also focuses on the accuracy of remote sensing techniques for the major optically active parameters: chlorophyll-a and phycocyanin, Secchi disk depth and turbidity. The article is subdivided by sections dedicated to each of these parameters. A review of remote sensing platforms and sensors precedes the parameters sections. The past 20 years have brought a large body of articles on how remote sensing data can be used to estimate these parameters. Empirical methods dominate overwhelmingly with a four to one proportion over analytical approaches. Environmental factors such as season, complexity of water and concentration loads appear to exert a strong control over the quality of the results. Recent platforms and sensors have brought noticeable improvements over results achieved in this period.

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Section: Scientific and Technological Advancements In The Past Two De...mentioning

confidence: 99%

Section: Scientific and Technological Advancements In The Past Two De...mentioning

confidence: 99%

The Estimation of Water Quality Parameters in Lentic Environments Through Remote Sensing Technologies: a Review of the Past Two Decades

Pizani

Maillard

Amorim

2022

Rev. Bras. Cartogr.

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“…This deal aims to make the EU’s economy sustainable by making the WEF Nexus an effective tool in sustainable development, and by turning climate and environmental challenges into opportunities in all policy areas Fontana et al ( 2021 ) Frontiers in Water Presented “Five W Questions” (FWQ) as an iterative guide to the concept of WEF Nexus to encourage reflexivity and interdisciplinary dialogue, while aiming to produce actionable knowledge. The FWQ are: (i) ‘why’, in which the purpose of correlative research for actionable knowledge can be explored; (ii) ‘what’, in which the physical aspect of the interdependence and interactions amongst water, energy, and food subsystems (WEF Nexus) can be understood; (iii) ‘where’, in which issues of scale, interactions between scales, and the geographic context of the WEF Nexus or interdependence can be discussed; (iv) ‘when’, in which the temporal dimensions of interconnected research with a particular focus on intergenerational trade-offs can be considered; and (v) ‘who’ which focuses on relevant stakeholders and the importance of understanding justice and equity issues Heal et al ( 2021 ) Hydrological Science Journal Pointed out that the role of water quality and, in particular, its impact on health, the environment, and the broader well-being of the water–energy–food (WEF) Nexus, is rarely acknowledged. Demonstrated the necessity of including water quality in the water dimension of the WEF Nexus, to address the complex and multidisciplinary challenges facing humanity.…”

Section: Introductionmentioning

confidence: 99%

Water strategies and water–food Nexus: challenges and opportunities towards sustainable development in various regions of the World

Salem¹,

Pudza

Yihdego

2022

Sustain. Water Resour. Manag.

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The twenty-first century is witnessing an explosion in global population, environmental changes, agricultural land disintegration, hunger, and geopolitical instabilities. It is difficult to manage these conditions or standardize improvement systems without thinking of the three main elements or subsystems that are necessary for any meaningful development—namely water (W), energy (E), and food (F). These key elements form what is globally agreed upon as the “WEF Nexus.” While considering them, one should think about the other key factors that influence WEF Nexus, including population’s growth, impacts of environmental changes (including climate change), moderation and adaptation regimes to climate change and climate resilience, loss of biodiversity, and sustainable nature. Together, the WEF Nexus subsystems represent a framework to ensure environmental protection that should be seen as an ethical and socioeconomic obligation. Issues, such as protection of water resources, and strategies and management tools or mechanisms for the use of water assets and agricultural innovations under the obligations of sustainable use, are investigated in this paper. Attention is paid to the relationship between water and food (WF Nexus) or water for food security in various world regions, including the Gulf Cooperation Council (GCC) countries, Central Asia countries and the Caucasus, China, Africa, and Canada. This paper also presents analyses of a great number of up-to-date publications regarding the “Nexus” perspective and its applications and limitations. This paper suggests that the Nexus’ approach, in its different concepts (WEF, WE, WF and EF), can promote sustainable development and improve the quality of life of communities, while preserving natural, human, and social capital, addressing sustainability challenges, and protecting natural resources and the environment for long-term use.

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“…Surface water ecosystems worldwide are deteriorating at an alarming rate under ever-increasing human pressures and climate change [1][2][3], threatening biodiversity and ecosystem services that link to human water security and public health [4][5][6][7]. Notably, increases in agricultural productivity, urbanization, and their associated impacts have multiplied the number and severity of stressors to surface waters since the middle of the 20th century.…”

Section: Introductionmentioning

confidence: 99%

Data-Driven System Dynamics Model for Simulating Water Quantity and Quality in Peri-Urban Streams

Lemaire

Carnohan

Grand

et al. 2021

Water

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Holistic water quality models to support decision-making in lowland catchments with competing stakeholder perspectives are still limited. To address this gap, an integrated system dynamics model for water quantity and quality (including stream temperature, dissolved oxygen, and macronutrients) was developed. Adaptable plug-n-play modules handle the complexity (sources, pathways) related to both urban and agricultural/natural land-use features. The model was applied in a data-rich catchment to uncover key insights into the dynamics governing water quality in a peri-urban stream. Performance indicators demonstrate the model successfully captured key water quantity/quality variations and interactions (with, e.g., Nash-Sutcliff Efficiency ranging from very good to satisfactory). Model simulation and sensitivity results could then highlight the influence of stream temperature variations and enhanced heterotrophic respiration in summer, causing low dissolved oxygen levels and potentially affecting ecological quality. Probabilistic uncertainty results combined with a rich dataset show high potential for ammonium uptake in the macrophyte-dominated reach. The results further suggest phosphorus remobilization from streambed sediment could become an important diffuse nutrient source should other sources (e.g., urban effluents) be mitigated. These findings are especially important for the design of green transition solutions, where single-objective management strategies may negatively impact aquatic ecosystems.

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Water quality: the missing dimension of water in the water–energy–food nexus

Cited by 20 publications

References 139 publications

The Estimation of Water Quality Parameters in Lentic Environments Through Remote Sensing Technologies: a Review of the Past Two Decades

The Estimation of Water Quality Parameters in Lentic Environments Through Remote Sensing Technologies: a Review of the Past Two Decades

Water strategies and water–food Nexus: challenges and opportunities towards sustainable development in various regions of the World

Data-Driven System Dynamics Model for Simulating Water Quantity and Quality in Peri-Urban Streams

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