Environmental flow deficit at global scale – implication on irrigated agriculture

12587 11 49432 4 132429 document 49432 EGU2016-10110.pdf application/pdf 5a005d00721a46402a39978d932070b1 MD5 34098 2016-04-11 09:48:09 https://pure.iiasa.ac.at/id/eprint/12587/1/EGU2016-10110.pdf 12587 1 7 application/pdf text en public cc_by

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presentation 55957 2 157352 document 55957 lightbox.jpg image/png adb9b2136996a9079a29b6c80c1bf9d6 MD5 70659 2016-05-17 09:33:49 https://pure.iiasa.ac.at/id/eprint/12587/8/lightbox.jpg 12587 8 8 image/png other Thumbnails conversion from slideshow to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/55956 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/55956 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/55956 archive 2 disk0/00/01/25/87 2016-04-11 09:51:18 2021-08-27 17:40:35 2016-04-11 09:51:18 conference_item show 1 Pastor A. 8843 Ludwig F. Biemans H. Kabat P. 1953 Environmental flow deficit at global scale – implication on irrigated agriculture pub prog_esm prog_dir SSS10.1/HS5.12f: Irrigated agriculture: Natural Resources Management for the sustainability of the terrestrial ecosystem maintaining productivity. Oral Presentation 09:30-09:45 / Room 2.61 Freshwater species belong to the most degraded ecosystem on earth. At the beginning of the 21st century, scientists have developed the concept of environmental flow requirements (Brisbane declaration 2003) with the aim of protecting freshwater species in the long term. However, the ecological state of rivers is different across the world depending on their fragmentation, on the presence of dams and reservoirs and on the degree of pollution. To implement new regulations on river flow, it is necessary to evaluate the degree of alteration of rivers which we called “environmental flow deficit”. The European water framework directive is still working on evaluating the ecological states of river across Europe. In this study, we calculated monthly environmental flow deficit with the global vegetation dynamic and hydrological model LPJml. Environmental flow requirements were first calculated with the Variable Monthly Flow method (Pastor et al., 2014). Then, we checked in each river basin where and when the actual flow (flow minus abstraction for irrigation) does not satisfy environmental flow requirements.We finally show examples of different river basins such as the Nile and the Amazon to show how climate and irrigation can impact river flow and harm freshwater ecosystems. 2016 http://meetingorganizer.copernicus.org/EGU2016/EGU2016-10110.pdf 226 141 public paper European Geosciences Union (EGU) General Assembly 2016 Vienna, Austria 17–22 April 2016 conference FALSE info:eu-repo/semantics/conferenceObject