- Programme area:3) Dimensions of Complexity of Aquatic Systems
A Novel In Situ Experimental Setup for Studying the Impact of Bedform Celerity on 2D Oxygen Distribution in the Hyporheic Zone of Streams
The authors investigated the influence of dynamic hyporheic zones. They developed of a novel field-based setup that enabled the simultaneous monitoring of oxygen dynamics and bedform migration in a stream. Contrary to what has been reported in several studies, they observed more strongly oxygenated bedforms at the highest velocity studied.
Blooms like it hot, but mussels do not: Influence of invasive quagga mussels on cyanobacteria during summer
Coupling an Isotope-Enabled Global Spectral Model (IsoGSM) With Hydrological Modelling Using Streamflow-Isotope-Based Correction
Global Comparison of Aqueous Geochemistry and Dissolved H2/CH4 in Continental Low Temperature Serpentinization–Influenced Environments
Enhancing process interpretation with isotopes: potential discharge-isotope trade-offs in ecohydrological modelling of heavily managed lowland catchments
The authors enhanced a tracer-aided hydrological model to help constrain estimates of ecohydrological partitioning and water balance compartments in sub-catchments of the Middle Spree catchment. They disentangled ecohydrological funtioning in this ET dominated region despite the complexity of the heterogeneous landuse, extensive hydraulic infrastructure and long legacy of intensive management.
Target and Nontarget Analyses Reveal Similar Dissolved Organic Contaminant Patterns Relative to Quantified Catchment Characteristics along Two German Rivers
Dense stands of aquatic plants retain water in lowland rivers and in adjacent floodplain aquifers
Since the 1980s mean discharge has declined by around 50% and - without aquatic vegetation – also the water level. Dense stands of aquatic plants have kept the water level high in recent summers despite lowered discharge. Most water was retained in adjacent floodplain aquifers rather than in the river channel.
Low contribution of oxic methane production in shallow productive lakes
Sub-daily stable water isotope dynamics of urban tree xylem water and ambient vapor
The authors combined in situ monitoring of stable isotopes and ecohydrological monitoring in different urban vegetation in Berlin. They provide novel insights on plant physiology and hydrological functioning through high-resolution isotope data to capture sub-daily plant water uptake and internal water cycling.
A tiered complexity conceptual framework for treating water soluble, hydrophilic contaminants in green stormwater infrastructure
Blue-green infrastructure is a critical tool for improving stormwater quality, but the removal of dissolved, hydrophilic contaminants remains a major challenge. The authors propose a tiered conceptual framework of progressively more complex, costly, and resource-intensive interventions to remove dissolved, hydrophilic contaminants and thus minimize risks to ecosystems and drinking water sources.