Water quality management could halve future water scarcity cost-effectively in the Pearl River Basin

19859 7 106852 2 324019 document 106852 s41467-024-49929-z.pdf application/pdf c0d28e3e1ddab8b213104f6c4a534b14 MD5 2886847 2024-07-08 07:32:03 https://pure.iiasa.ac.at/id/eprint/19859/1/s41467-024-49929-z.pdf 19859 1 1 application/pdf text en public cc_by_4

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published 106853 2 324025 document 106853 lightbox.jpg image/png 98d9829c8be4e135115061220681c3ca MD5 58657 2024-07-08 07:42:05 https://pure.iiasa.ac.at/id/eprint/19859/2/lightbox.jpg 19859 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/106852 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/106852 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/106852 archive 353 disk0/00/01/98/59 2024-07-08 07:36:28 2024-09-09 12:43:09 2024-07-08 07:36:28 article show Baccour S. Goelema G. Kahil T. 2103 0000-0002-7812-5271 Albiac Murillo J.M.S. 9361 van Vliet M.T.H. Zhu X. Strokal M. Water quality management could halve future water scarcity cost-effectively in the Pearl River Basin pub BNR WAT Reducing water scarcity requires both mitigation of the increasing water pollution and adaptation to the changing availability and demand of water resources under global change. However, state-of-the-art water scarcity modeling efforts often ignore water quality and associated biogeochemical processes in the design of water scarcity reduction measures. Here, we identify cost-effective options for reducing future water scarcity by accounting for water quantity and quality in the highly water stressed and polluted Pearl River Basin in China under various socio-economic and climatic change scenarios based on the Shared Socio-economic Pathways (SSPs) and Representative Concentration Pathways (RCPs). Our modeling approach integrates a nutrient model (MARINA-Nutrients) with a cost-optimization procedure, considering biogeochemistry and human activities on land in a spatially explicit way. Results indicate that future water scarcity is expected to increase by a factor of four in most parts of the Pearl River Basin by 2050 under the RCP8.5-SSP5 scenario. Results also show that water quality management options could half future water scarcity in a cost-effective way. Our analysis could serve as an example of water scarcity assessment for other highly water stressed and polluted river basins around the world and inform the design of cost-effective measures to reduce water scarcity. 2024-07-06 published Nature Publishing Group doi:10.1038/s41467-024-49929-z 142 3214 public Nature Communications 15 1 TRUE 2041-1723 no info:eu-repo/semantics/article