- Microbial Community Ecology and Physiology
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Methane Hydrates and Related Phenomena
- Spectroscopy and Laser Applications
- Microbial metabolism and enzyme function
- Marine and coastal ecosystems
- Water Treatment and Disinfection
- Wastewater Treatment and Nitrogen Removal
- Isotope Analysis in Ecology
University of Koblenz and Landau
2017-2025
University of Kaiserslautern
2025
Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
2025
Universität Koblenz
2017-2020
The use of cavity ring-down spectrometer (CRDS) based portable greenhouse gas analyzers (PGAs) in closed-loop configuration to measure small sample volumes (< 1 l) for CH4 and CO2 concentrations is increasing offers certain advantages over conventional measurement methods terms speed as well the ability directly field locations. This first systematic assessment uncertainties, problems issues associated with achieving reliable repeatable this technique presents adaptation, range, calibration...
Abstract Inland waters emit a globally significant amount of methane (CH 4 ) into the atmosphere. Measurements potential CH production rates in sediment can help constrain magnitude sources and time‐averaged emission rates. We explored magnitude, variability, drivers sediment, based on compiled measurements (238 cores from 72 aquatic systems) following standardized laboratory incubation procedure. The data reveal > 4‐fold higher reservoir sediments than lakes 14‐fold rivers after being...
Abstract Aim Although running waters are getting recognized as important methane sources, large‐scale geographical patterns of microorganisms controlling the net balance streams still unknown. Here we aim at describing community compositions methanogenic and methanotrophic large spatial scales linking their abundances to potential sediment production (PMP) oxidation rates (PMO). Location The study spans across 16 European from northern Spain Sweden western Ireland Bulgaria. Taxon...
Nitrous oxide (N2O) is an increasing greenhouse gas in the troposphere and a potential destroyer of stratospheric ozone layer. Wastewater treatment plant (WWTP) one anthropogenic N2O sources because inorganic organic nitrogen compounds are converted to nitrate (NO3-, case standard system) or N2 (in advanced by bacterial nitrification denitrifcation processes WWTP. These major can be distinguished isotopocule analysis. In order reveal production mechanisms wastewater treatment, we made water...
Abstract Background: Globally, streams emit significant amounts of methane, a highly potent greenhouse gas. However, little is known about the stream sediment microbial communities that control net methane balance in these systems, and particular their distribution composition at large spatial scales. This study investigated diversity abundance methanogenic archaea methane-oxidizing microorganisms across 16 European (from northern Spain to Sweden from western Ireland Bulgaria) via 16S rRNA...