Impact of climate variability and human activities on water resources.
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This PhD Thesis assess the extent to which the global driving forces (climate change, groundwater dynamics, etc.) and human activities (land-use/land-cover changes, dam construction, etc.) interact and affect the hydrological regime in some selected basins in the semi-arid region of southeastern Spain. To conduct a comprehensive causal analysis, this PhD Thesis used the Soil and Water Assessment Tool (SWAT) hydrological model as the main tool and combined it with the Interbasin Groundwater Infiltration (IHA) method and the Chloride Mass Balance (CMB) method to make calculations of specifics water balance components. Climate change and land-use and land-cover changes (LULC) caused by human activities are significant contributors to ecosystem degradation and the availability of a basin's water resources. Climate change forecasts for the Mediterranean region this century reveal that rising temperatures, combined with less precipitation, have resulted in a 20% drop in water resources. Hum...