Adaptation strategies for water supply management in a drought prone Mediterranean river basin: Application of outranking method

Kumar, Vikas; Vasto-Terrientes, Luis Del; Valls, Aïda; Schuhmacher, Marta

doi:10.1016/j.scitotenv.2015.06.062

Cited by 50 publications

(39 citation statements)

References 28 publications

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“…A recent paper in drought-prone Spain illustrated the types of adaptation options often considered in the context of water resource governance and transboundary rivers: the development of alternative water sources, inter-basin transfers of water, and sectoral demand management (i.e. water conservation) for urban households, agriculture and energy (Kumar et al 2016). Adaptation to drought therefore encompasses a broad range of approaches, and different approaches involve different constellations of actors and responsibilities, ranging from new water supplies developed by either local or central governments to demand management depending on local governance and behavioural changes, as well as options such as inter-basin transfers that rely on a mixture of responsibilities assigned at different levels.…”

Section: Drought Adaptationmentioning

confidence: 99%

Decentralisation and drought adaptation: Applying the subsidiarity principle in transboundary river basins

Garrick

2018

Int J Commons

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Determining how to adapt to freshwater scarcity and variability has become an important question for institutional analysis and development. This paper addresses the assignment challenge in drought adaptation, namely the challenge of assigning and coordinating governance responsibilities across nested levels of social organisation. The subsidiarity principle suggests that adaptation decisions and associated governance responsibilities should occur at the lowest level at which they can be performed competently. Droughts and related slow-onset 'shocks' throw into question which level is lowest, and how this varies with the duration, severity and extent of the event. This paper explores the potential for the subsidiarity principle to guide the assignment and assessment of governance responsibilities associated with drought adaptation. It reviews literature at the intersection of common pool resource studies and new institutional economics to elaborate four diagnostic questions: (1) what are the opportunities and limits of decentralised (independent) drought adaptation?; (2) how are social dilemmas and spillovers associated with drought adaptation managed?; (3) when do higher level institutions complement versus crowd out decentralised adaptation?; and (4) how does adaptation by individuals and groups affect adaptive efficiency? An illustrative comparison of drought adaptation in the US portions of the Colorado and Rio Grande Rivers of North America demonstrates: (i) the potential and limits of decentralised adaptation through urban water conservation and irrigation efficiency (ii) the importance of both formal and informal coordination institutions (e.g. river basin organisations) to address cross-border externalities, including conflicts and economies of scale, and (iii) the pivotal role of groundwater management for adaptive efficiency, requiring a balance between local, short-term dependence on groundwater for drought adaptation with transboundary, long-term outcomes caused by unsustainable extractions. 302Dustin E. Garrick

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Section: Drought Adaptationmentioning

confidence: 99%

Decentralisation and drought adaptation: Applying the subsidiarity principle in transboundary river basins

Garrick

2018

Int J Commons

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“…The groundwater system of the Veluwe is a slow-responding system (Gehrels 1999; Kumar et al 2016a) because in this area there is only a limited surface water system and the groundwater levels are deep below the soil surface. Groundwater level fluctuations in this area are characterized by low frequency fluctuations with a large amplitude (Fig.…”

Section: The Veluwe Areamentioning

confidence: 99%

Impact of Changes in Groundwater Extractions and Climate Change on Groundwater-Dependent Ecosystems in a Complex Hydrogeological Setting

Engelenburg

Hueting

Rijpkema³

et al. 2017

Water Resour Manage

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Climate change and other future developments can influence the availability of groundwater resources for drinking water. The uncertainty of the projected impact is a challenge given the urgency to decide on adaptation measures to secure the drinking water supply. Improved understanding on how climate change affects the groundwater system is necessary to develop adaptation strategies. AZURE is used, a detailed, well-calibrated hydrological model to study the projected impact of climate change scenarios on the large Veluwe aquifer in the Netherlands. The Veluwe area is an important source of drinking water. However, some existing groundwater extractions in the area affect nearby groundwaterdependent ecosystems. Redistribution of the licensed extraction volumes of these sites is considered to reduce the impact on these ecosystems. The projected impact of climate change and redistribution to groundwater levels is studied. The research shows that in a slowly responding large aquifer the projected climate change may cause rising groundwater levels despite the projected increase in summer dryness. The results indicate that this impact may exceed the impact of redistribution of extraction volumes. In addition, it is shown that the combined effect strongly depends on local conditions, thus highlighting the need for highresolution modelling.

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“…A recent study from the Swiss Alps suggests that socio-economic changes could have a greater impact on water resources than climate change [18]. To cope with increasing water distribution conflicts, we need to rethink current water and land-management practices to achieve a more sustainable water management [19], within the basin and across geographical and institutional borders. Furthermore, the identification of potential mismatches between the supply and demand of ES is an important prerequisite to facilitate a sustainable management of natural resources [20,21].…”

Section: Introductionmentioning

confidence: 99%

“…Although many studies have addressed current or future water provision at different levels [17,19,[22][23][24], most studies quantify water provision in mountain regions as an ES and analysing future impacts of global change concentrated on the water supply at the watershed level, applying complex hydrological models [9,25]. These studies require various input data that are usually not available at larger scales and provide therefore only limited information for developing cross-national strategies.…”

Section: Introductionmentioning

confidence: 99%

Assessing Freshwater Provision and Consumption in the Alpine Space Applying the Ecosystem Service Concept

et al. 2019

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A key challenge in the sustainable management of freshwater is related to non-stationary processes and transboundary requirements. The assessment of freshwater is often hampered due to small-scale analyses, lacking data and with the focus on only its provision. Based on the ecosystem service (ES) concept, this study aims at quantitatively comparing potential water supply with the demand for freshwater in the European Alps and their surrounding lowlands. We propose an easy-to-use combination of different mapping approaches, including a large-scale hydrologic model to estimate water supply and the downscaling of regional data to the local scale to map demand. Our results demonstrate spatial mismatches between supply and demand and a high dependency of the densely populated lowlands from water providing mountain areas. Under expected climate variations and future demographic changes, our results suggest increasing pressures on freshwater in the south of the Alps. Hence, sustainable water management strategies need to assure the supply of freshwater under changing environmental conditions to meet the increasing water demand of urbanized areas in the lowlands. Moreover, national water management strategies need to be optimally concerted at the international level, as transboundary policies and frameworks can strengthen future water provision.

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Adaptation strategies for water supply management in a drought prone Mediterranean river basin: Application of outranking method

Cited by 50 publications

References 28 publications

Decentralisation and drought adaptation: Applying the subsidiarity principle in transboundary river basins

Decentralisation and drought adaptation: Applying the subsidiarity principle in transboundary river basins

Impact of Changes in Groundwater Extractions and Climate Change on Groundwater-Dependent Ecosystems in a Complex Hydrogeological Setting

Assessing Freshwater Provision and Consumption in the Alpine Space Applying the Ecosystem Service Concept

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