Zusammenfassung Grundwasserressourcen in alpinen Karstsystemen werden von vielen Städten und Gemeinden für die Trinkwasserversorgung genutzt und speisen vielfältige grundwasserabhängige Ökosysteme. Diese Studie quantifiziert erstmals die Verbreitung von Carbonatgesteinen und Karstwasserressourcen im Alpenraum. Rund 76.200 km 2 (40 %) der Alpen bestehen aus anstehenden Carbonatgesteinen. Die österreichischen Alpen zeigen die gr...

Zusammenfassung Aufgrund hoher Stickstoffeinträge überschreiten Nitratkonzentrationen im Grundwasser in Deutschland teils Trinkwassergrenzwerte, was präzisere Vorhersagemodelle und Managementstrategien erfordert. Diese Studie kombiniert Random-Forest-Modelle mit Explainable AI (SHAP-Werten), um die räumliche Verteilung der Nitratkonzentration im Grundwasser von Baden-Württemberg und Niedersachsen vorherzusagen und den Einfluss...

Flooding is a recurring natural phenomenon that can have both life-giving and destructive aspects. In natural environments, floods are often an important element of the seasonal hydrologic cycle that provides water and nutrients to soil, supporting unique, rich and diverse ecosystems. However, flood events can also represent a destructive force that can endanger lives and cause significant damage in urban areas. Karst areas, i...

Carbonate rocks in the Mediterranean region form karst landscapes with a variety of morphological and hydrological features, and are of particular interest from a water management perspective as they represent major karst aquifers. The Mediterranean Karst Aquifer Map and Database (MEDKAM) provides a 1:5,000,000 scale map showing the distribution of carbonate and evaporite rocks that can host karst groundwater resources, with a...

Karst groundwater-dependent ecosystems (KGDEs) in the Mediterranean region are important in terms of ecosystem services and biodiversity but are increasingly under anthropogenic pressures and climate-change constraints. For this study, the ecohydrological characteristics, threats, and protection status of 112 selected KGDEs around the Mediterranean Sea, including caves, springs, rivers and wetlands, were evaluated, based on lo...

Groundwater resources in Euro-Mediterranean countries provide a large part of the population’s water supply and are affected to varying degrees by anthropogenic use and climatic impacts. In many places, significant groundwater-level declines have already been observed, indicating an imbalance between natural groundwater recharge and groundwater abstraction. The extent of changes in groundwater storage (GWS) in the period 2003–...

Urban karst aquifers are threatened by anthropogenic activities, especially in semiarid developing countries. Recent water-sampling campaigns assessed the extent of groundwater-quality impairment in the Wadi Shueib in Jordan by a comprehensive hydrogeological and hydrochemical characterization of groundwater, wastewater, and imported water with its endmembers Lake Tiberias, Yarmouk River and Mukheiba wellfield. The results of...