| Text | 465211 2021 10.1016/j.ecoinf.2021.101219 Scopus 2 s2.0 85100025013 Flow regime alterations Indicators of hydrologic alteration Soil and water assessment tool Climate change Modeling alterations in flow regimes under changing climate in a Mediterranean watershed An analysis of ecologically relevant hydrological indicators Brouziyne Y.; De Girolamo A.M.; Aboubdillah A.; Benaabidate L.; Bouchaou L.; Chehbouni A. Mohammed VI Polytechnic University UM6P , International Water Research Institute, Benguerir, 43150, Mohammed VI Polytechnic University UM6P , International Water Research Institute, Benguerir, 43150, Morocco, , Morocco; Water Research Institute, National Research Council IRSA, CNR , Via F. De Balsio, 5, Bari, 70132, Water Research Institute, National Research Council IRSA, CNR , Via F. De Balsio,5, Bari, 70132, Italy, , , Italy; Water Research Institute, National Research Council IRSA, CNR , Via F. De Balsio, 5, Bari, 70132, Water Research Institute, National Research Council IRSA, CNR , Via F. De Balsio,5, Bari, 70132, Italy, , , Italy; Ecole Nationale d Agriculture de Meknes, BP/40, Meknes, 50001, Ecole Nationale d Agriculture de Meknes, BP/40, Meknes, 50001, Morocco, , Morocco; Laboratory of Functional Ecology and Environmental Engineering, Faculty of sciences Techniques, P.O. Box 2202, Fez, 30000, Laboratory of Functional Ecology and Environmental Engineering, Faculty of sciences Techniques, P.O. Box 2202, Fez, 30000, Morocco, , Morocco; Laboratory of applied Geology and Geo Environment, Faculty of Sciences, Ibn Zohr University, BP/8106, Cite Dakhla, Agadir, 8000, Laboratory of applied Geology and Geo Environment, Faculty of Sciences, Ibn Zohr University,BP/8106, Cite Dakhla, Agadir, 8000, Morocco, , Morocco; Institut de recherche pour le developpement IRD , unite mixte de recherche UMR , Centre d etudes spatiales de la biosphere Cesbio , Toulouse, 31400, Institut de recherche pour le developpement IRD , unite mixte de recherche UMR Centre d etudes spatiales de la biosphere Cesbio ,Toulouse, 31400, France, , , France; Institut de recherche pour le developpement IRD , unite mixte de recherche UMR , Centre d etudes spatiales de la biosphere Cesbio , Toulouse, 31400, Institut de recherche pour le developpement IRD , unite mixte de recherche UMR Centre d etudes spatiales de la biosphere Cesbio ,Toulouse, 31400, France, , , France The potential response of flow regimes to future climate has crucial importance for a variety of practical applications, such as sustainable water management and ecological asset preservation. For this study, multi site investigations of alterations in flow regimes under projected climate change were performed for one of the largest watersheds in Morocco, the Bouregreg Watershed BW . Future daily streamflow was simulated using the eco hydrological model Soil and Water Assessment Tool SWAT forced by climatic data from CMIP5 model outputs. Simulations were carried out for two periods 2035 2050 2040s , and 2085 2100 2090s under two emissions scenarios RCP4.5 and RCP8.5. Future streamflow regimes were examined in accordance with an Indicators of Hydrologic Alteration IHA analysis, while being confronted with baseline flow data. Mean temperature has been predicted to increase by up to 2.79 °C in the 2090s RCP8.5 , and a higher variability in rainfall regime is expected. The results indicate that, under future changes in climate patterns, flow regimes in BW will be altered. However, the extent of alteration will be reflected unevenly among the four streams of the study watershed. The IHA analysis revealed that most of the river network will experience both a decrease in monthly flow magnitude mostly in November and December , and an increase dominantly in February and March when compared to baseline. The frequency of flash pulses, and the number of zero flow days are also expected to increase. Most of the projected alterations were estimated to become very significant in the 2090s under the RCP8.5 scenario. The potential ecological implications were also analysed, and the most sensitive streams of BW were identified to guide local water planning and ecological preservation strategies. 61 Published version http //www.scopus.com/record/display.url eid=2 s2.0 85100025013 origin=inward Articolo in rivista Elsevier 1574 9541 Ecological informatics Print Ecological informatics Print Ecological informatics. Print annamaria.degirolamo DE GIROLAMO ANNA MARIA |
