主题词：Groundwater flow and contamination studies; Karst Systems and Hydrogeology; Groundwater and Isotope Geochemistry; Hydrology and Watershed Management Studies; Civil and Structural Engineering Research; Environmental Science and Water Management; Soil and Unsaturated Flow; Geothermal Energy Systems and Applications; Human auditory perception and evaluation; Mine drainage and remediation techniques; Diverse Scientific and Economic Studies; CO2 Sequestration and Geologic Interactions; Educational Reforms and Innovations; German Literature and Culture Studies; Libraries and Information Services; Soil and Water Nutrient Dynamics; Memory, History, Trauma, Identity; Medical and Health Sciences Research; Peatlands and Wetlands Ecology; Aquatic and Environmental Studies; Radioactive element chemistry and processing; Wastewater Treatment and Nitrogen Removal; Environmental Science and Technology; Hydraulic Fracturing and Reservoir Analysis; Water Treatment and Disinfection