What are the signs that indicate the depletion of underground water reserves in Mallorca?

Signs indicating the depletion of underground water reserves in Mallorca include a noticeable decline in water levels in aquifers, which can be measured through observation wells. Furthermore, increased salinity in the groundwater, particularly in coastal areas, can suggest that saltwater is intruding into depleted aquifers. The reduction in flow rates of natural springs and streams is another critical indicator, as these sources often rely on underground water supplies. Additionally, land subsidence can occur as a result of over-extraction of groundwater, leading to structural damage in buildings and infrastructure. The impact on local vegetation, such as wilting plants or increased desertification, further highlights the water stress in the ecosystem. Lastly, if agricultural yield declines, particularly in water-dependent crops, it also reflects the stress placed on underground water reserves. Monitoring these factors is crucial for assessing and managing the sustainability of water resources in Mallorca.