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Prediction of the effects of climate change on the soil salinity of an irrigated area under Mediterranean conditions

AuthorsPaz Bécares, José Miguel de; Visconti Reluy, Fernando ; Molina, M. J. ; Sánchez, J.; Martínez, D.; Ingelmo Sánchez, Florencio
Issue DateJul-2012
PublisherEuropean Confederation of Soil Science Societies
CitationEUROSOIL 2012
AbstractSoil salinization in irrigated areas is a degradation process that harms both crop productivity and environment. According to current predictions the climate change in the Mediterranean region will be accompanied by changes in the precipitation patterns and increases in the average temperatures. For the Mediterranean south area, the HadCM3 global circulation model predicted a climate change for 2030-2060 years and A2-B2 emission scenarios, with 2ºC of temperature increase in summer and +1,5 ºC for the remainder stations, and a reduction of 20% in precipitation for summer, and an increase of 5% during winter and autumn (table 1, Giannakopoulos et al. 2009). These new conditions could affect the soil salt build-up due to a decrease in the salt leaching ability of rainfall and because of an increase of the evapotranspiration due to the increase of temperature. Regional simulations of the effects of climate change on soil salinity are necessary. The process-based models integrated within a Geographical Information System-GIS framework to simulate the salinity for different scenarios is a option to predict the effects of climate change in the soil salinity, and even to recommend irrigation management to mitigate this effects in the crops and avoid the soil salinization.
Appears in Collections:(CIDE) Comunicaciones congresos
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