- Programme area:3) Dimensions of Complexity of Aquatic Systems
Exploring impacts of forest management strategies on water partitioning in a drought-sensitive catchment using a tracer-aided ecohydrological framework
The authors developed a parsimonious, tracer-aided forest management scenario framework using an ecohydrological model, which was designed to isolate the dominant vegetation-structural controls on long-term water partitioning. Evapotranspiration was highest under conifers, exceeding broadleaf forests and agroforestry by 7 % and 11 %. Agroforestry exhibited the greatest groundwater recharge.
Rapid drought-to-flood weather whiplash amplifies climate change governance failure
Prediction of Hydroclimatic Anomalies Using a New Isotope Precipitation Index
The authors used stable water isotopes to trace the origin of precipitation and are developing a new, isotope-based Evaporation and Moisture Recycling Index (iEMI). The iEMI can identify anomalous dry periods and links evaporation-driven precipitation to droughts in Europe, Africa, and Australia. This innovative index can help improve drought monitoring and optimize water management worldwide.
Unravelling the Role of Surface Water–Groundwater Connectivity in the Andean Páramo
Effects of temporary streamflow interruption on hyporheic oxygen dynamics
This study provides high-resolution, field-based evidence of the importance of accounting for short-term flow interruptions in river management strategies. It demonstrated that a one-day streamflow interruption of the side channel of the River Erpe caused a significant decrease in diel surface water oxygen amplitude and porewater oxygen concentrations, as well as a metabolic shift after rewetting.
Enhancement of Hyporheic Flow and Solute Transport by Random Burrow- and Mound-Induced Bioturbation
This study examined how bioturbation alters sediment structure and surface roughness, and how this influences hyporheic exchange and biogeochemical processes. It reveals that irregular burrow galleries promote deeper and spatially heterogeneous solute penetration by generating tortuous and highly connected flow paths within the sediment.
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