Global change and agricultural management options for groundwater sustainability |
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| Institution: | 1. Department of Geotechnical Engineering and Geosciences, Technical University of Catalonia-UPC, Gran Capitan s.n., 08034 Barcelona, Spain;2. Amphos XXI Consulting S.L., Pg. de Rubí, 29-31, 08197 Valldoreix, Spain;3. Universidad Politécnica de Madrid, Ríos Rosas 21, 28003 Madrid, Spain;1. Dept. of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette 47907-2093, Indiana, USA;2. UMI Ummisco, Centre IRD d''lle de France, 32, avenue Henri Varagnal, Bondy Cedex 93143, France;3. UMR-System, Institut Agronomique Méditerranéen de Montpellier (IAMM), 3191 route de Mende, Montpellier 34093, France;1. CNRS, UMR 8222, Laboratoire d''Ecogéochimie des Environnements Benthiques, F-66650 Banyuls/mer, France;2. Sorbonne Universités, UPMC Univ Paris 06, UMR 8222, LECOB, Observatoire océanologique, F-66650 Banyuls/mer, France;3. UPMC, Univ Paris 06, 4 Place Jussieu, 75252 Paris France;1. Graduate Program of Hydrologic Sciences, Department of Natural Resources and Environmental Science, University of Nevada Reno, 1664 N. Virginia Street, Mail Stop 0186, Reno, NV 89557, USA;2. Dendrolab and Graduate Program of Hydrologic Sciences, University of Nevada Reno, 1664 N. Virginia Street, Mail Stop 0154, Reno, NV 89557, USA;3. Graduate Program of Hydrologic Sciences, University of Nevada Reno, 1664 N. Virginia Street, Mail Stop 0175, Reno, NV 89557, USA;4. Graduate Program of Environmental Sciences, University of Nevada Reno, 1664 N. Virginia Street, Mail Stop 0186, Reno, NV 89557, USA;5. Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523, USA;1. Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium;2. Department of Mathematics and Computer Science, University of Antwerp, Middelheimlaan 1, 2020 Antwerpen, Belgium;1. Departamento de Ingeniería Civil, Universidad de Chile, Chile;2. Ministerio del Medio Ambiente, Chile |
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| Abstract: | According to the general circulation models (CGMs) for future climate projections, a temperature increase, precipitation decrease, and an increase in the variability of extreme events may be expected in the future, likely reducing available water resources. For the western Mediterranean, future climate change projections indicate that temperature increase may range from 1.5 °C to 3.6 °C, and the precipitation decline will reach between 10% and 20%, which may result in a significant reduction of natural groundwater recharge. With the use of modelling tools, the amount of groundwater recharge under different climate change scenarios and varying agricultural management practices can be predicted, and water budget attributes can be estimated, which may allow for quantifying impacts, and assist in defining adaptation strategies. For the Inca–Sa Pobla basin (Balearic Islands, Spain), under future climate change projections, agricultural management alternatives of crop type distribution and irrigation demands are required for planned adaptation strategies. In the area, where irrigation water for agricultural practices originates from groundwater resources, adaptation measures based on a change from mixed crops to potatoes and a 20% decrease of agricultural land cultivation have proven to be efficient for the hydrologic system and associated wetland sustainability. |
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