A5005635064- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Peatlands and Wetlands Ecology
- Biocrusts and Microbial Ecology
- Lichen and fungal ecology
- Soil erosion and sediment transport
- Legume Nitrogen Fixing Symbiosis
- Analytical chemistry methods development
- Isotope Analysis in Ecology
- Radioactive element chemistry and processing
- Mycorrhizal Fungi and Plant Interactions
- Clay minerals and soil interactions
- X-ray Spectroscopy and Fluorescence Analysis
- Soil and Unsaturated Flow
- Bioenergy crop production and management
- Aquatic Ecosystems and Phytoplankton Dynamics
- Heavy metals in environment
- Mass Spectrometry Techniques and Applications
- Plant nutrient uptake and metabolism
- Pharmaceutical and Antibiotic Environmental Impacts
- Coastal wetland ecosystem dynamics
- Botany and Plant Ecology Studies
- thermodynamics and calorimetric analyses
- Photosynthetic Processes and Mechanisms
- Pesticide and Herbicide Environmental Studies
University of Rostock
2016-2025
Technische Universität Dresden
2019
University Hospital Carl Gustav Carus
2001
University of Lübeck
2001
Universitätsmedizin Rostock
2001
Charité - Universitätsmedizin Berlin
2001
Centre Virchow-Villermé
2001
University of Vechta
1997
University of Göttingen
1937
The chemical nature of soil organic nitrogen (N) is still poorly understood and one-third to one-half it typically classified as `unknown N'. Nitrogen K-edge XANES spectroscopy has been used develop a systematic overview on spectral features all major N functions in environmental samples. absolute calibration the photon energy was completed using 1s → π* transitions pure gas-phase N2. On this basis library provided for mineral N, nitro amino acids, peptides, substituted pyrroles, pyridines,...
Summary We should know the effects of soil use and management on contents forms phosphorus (P) resulting potential for leaching losses P to prevent eutrophication surface water. determined test values, amounts sequentially extracted P, sorption capacities degrees saturation in 20 differently treated soils compared these data with lysimeters. One‐way analyses variance indicated that most fractions were significantly influenced by texture, land (grassland, arable or fallow reafforestation),...
Abstract Es wurden die Schmelzdiagramme einer Reihe von Oxyden gemischt mit CeO 2 untersucht. Alle Gemische ergaben nur ein einfaches Zusammenschmelzen bis auf Cr O 3 welches eine Verbindung CeCrO zeigte. Das wurde beim Schmelzen in Gemischen mehr oder weniger zu Ce reduziert, allein erwies es sich 2600 0 beständig und unschmelzbar. ist das einzige Oxyd, im Verein ThO erst über schmelzende Mischungen gibt, also feuerfesteste bekannte Oxyd. Bei seiner relativen Billigkeit empfiehlt daher als...
Abstract The Atacama Desert is the driest non‐polar desert on Earth, presenting precarious conditions for biological activity. In arid coastal belt, life restricted to areas with fog events that cause almost daily wet–dry cycles. such an area, we discovered a hitherto unknown and unique ground covering biocenosis dominated by lichens, fungi, algae attached grit‐sized (~6 mm) quartz granitoid stones. Comparable forming kind of layer top soil rock surfaces in general summarized as cryptogamic...
Abstract. Soils in areas with high livestock density contribute to the eutrophication of aquatic ecosystems through loss nutrients, especially phosphorus (P). In order identify potential for P from such soils we determined extracted by water (H 2 O‐P), double lactate (DL‐P), and sorption capacity (PSC) degree saturation (DPS) soil samples two counties, one low (Harle‐catchment) other very (Vechta). Both catchments are hydrologically connected tidal North Sea. The mean concentrations H O‐P...
Abstract The aim of this study was to assess differences in rhizodeposition quantity and composition from maize cropped on soil or 1:1 (w/w) soil–sand mixture distribution recently assimilated C between roots, shoots, soil, solution, CO 2 root respiration. Maize labeled 14 atmosphere followed by subsequent simultaneous leaching air flushing soil. traced after 7.5 h roots soil‐borne . Rhizodeposits the leachate first labeling were identified high‐pressure liquid chromatography (HPLC)...
Sorption of the sulfonamide antibiotics sulfanilamide, sulfadimethoxine, and sulfapyridine to model soil organic matter was investigated. Therefore, Fluka humic acid an enzymatically reacted vanillin oligomer were used in batch experiments at pH 4.5, 6.0, 7.5. amphoteric sulfonamides nonlinear dependent. At 4.5 6.0 sorption both increased order sulfanilamide < sulfadimethoxine. This primarily attributed sulfonamides' H-bond donor/acceptor properties. indicated that addition π -...
In the original publication [...]
Hydrochars, technically manufactured by hydrothermal carbonization (HTC) of biomass residues, are recently tested in high numbers for their suitability as feedstock bioenergy production, the bioproduct industry, and long-term carbon storage soil, but ecological effects soil-plant system not sufficiently known. Therefore, we investigated influence different residues process duration on molecular composition hydrochars, how hydrochar addition to soils affected germination spring barley ( L.)...
Fungal colonization can significantly affect the secondary metabolism of host plants. We tested impact a common below-ground symbiosis, i.e., ectomycorrhiza formation, on poplar leaf chemical components that are involved in defence against disease, rust fungi, N-deficient soil. A rust-susceptible clone (Populus trichocarpa × deltoides 'Beaupré') was (a) non-associated with ectomycorrhizal fungus (EM) Hebeloma mesophaeum (Pers.) Quélet MÜN and non-infected Melampsora larici-populina Kleb....