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Water reuse to free up freshwater for higher-value use and increase climate resilience and water productivity

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Title Water reuse to free up freshwater for higher-value use and increase climate resilience and water productivity
 
Creator Drechsel, Pay
Qadir, M.
Baumann, J.
 
Subject water reuse
wastewater
climate change adaptation
resilience
water productivity
freshwater
water transfer
rural urban relations
water allocation
water scarcity
water conservation
desalination
agriculture
farmers
 
Description The impact of climate change on the availability of water affects all types of land use and sectors. This complexity calls for integrated water resources management and negotiations between sectors on the most important, cost-effective, and productive allocation of water where it is a limited resource. This reflection paper shows examples of adaptation efforts to water scarcity at a scale where gains in water productivity can be derived from intersectoral water reuse and wastewater–freshwater swaps, complementing other water scarcity coping strategies (water savings, long-distance transfer, and desalination). Wastewater treatment for reuse offers opportunities across scales as it allows, for example, donor regions to be compensated with reclaimed water for the release of freshwater for higher-value use, increasing overall economic water productivity in this way. In such water swaps, farmers are compensated with higher water volumes in exchange for higher quality. The reuse of water between sectors offers opportunities to (i) expand the traditional (agricultural) water productivity concept and (ii) significantly increase water productivity at the system level. While rural–urban water reallocation can help mitigate the impacts of climate change, compensating farmers with reclaimed water remains limited for the reasons discussed in the paper.
 
Date 2022-10
2022-02-24T02:53:05Z
2022-02-24T02:53:05Z
 
Type Journal Article
 
Identifier Drechsel, Pay; Qadir, M.; Baumann, J. 2022. Water reuse to free up freshwater for higher-value use and increase climate resilience and water productivity. Irrigation and Drainage, 71(S1):100-109. (Special issue: Achieving Climate Resilience Through Improved Irrigation Water Management from Farm to Basin Scale) [doi: https://doi.org/10.1002/ird.2694]
1531-0361
https://hdl.handle.net/10568/118234
https://onlinelibrary.wiley.com/doi/epdf/10.1002/ird.2694
https://doi.org/10.1002/ird.2694
Rural-Urban Linkages
H050955
 
Language en
 
Rights CC-BY-NC-4.0
Open Access
 
Format p. 100-109
 
Publisher Wiley
 
Source Irrigation and Drainage