A5075855913- Peatlands and Wetlands Ecology
- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Geology and Paleoclimatology Research
- Wastewater Treatment and Nitrogen Removal
- Climate change and permafrost
- Groundwater flow and contamination studies
- Soil erosion and sediment transport
- Constructed Wetlands for Wastewater Treatment
- Soil Geostatistics and Mapping
- Groundwater and Isotope Geochemistry
- Soil and Unsaturated Flow
- Geophysical and Geoelectrical Methods
- Mine drainage and remediation techniques
- Crop Yield and Soil Fertility
- Dam Engineering and Safety
- Fire effects on ecosystems
- Crystallization and Solubility Studies
- Hydrology and Sediment Transport Processes
- Geotechnical and Geomechanical Engineering
- Sunflower and Safflower Cultivation
- Geological Modeling and Analysis
- Hydrological Forecasting Using AI
- Aquatic Invertebrate Ecology and Behavior
- Coastal wetland ecosystem dynamics
Aarhus University
2016-2024
Agroécologie
2016-2017
Abstract Peatlands cover only 3–4% of the Earth’s surface, but they store nearly 30% global soil carbon stock. This significant is under threat as peatlands continue to be degraded at alarming rates around world. It has prompted countries worldwide establish regulations conserve and reduce emissions from this rich ecosystem. For example, EU implemented new rules that mandate sustainable management peatlands, critical reaching goal neutrality by 2050. However, a lack information on extent...
Excess nitrogen (N) losses from intensive agricultural production are a world-wide problem causing eutrophication in vulnerable aquatic ecosystems such as estuaries. Therefore, Denmark one of the most intensively farmed countries world has enforced mandatory regulations on since late 1980s. We demonstrate outcome imposed agriculture by analyzing decadal trends nitrate (NO3−) concentrations and loads streams using 29 years detailed monitoring data survey information practices at field level...
 Worldwide, farming activities exert strong impacts on the amount and molecular composition of dissolved organic matter (DOM), which constitutes an important vector nitrogen (ON) transport from soils to aquatic environment (Graeber et al., 2015). However, there are major knowledge gaps drivers ON loss water courses. In Denmark, stream data Danish national monitoring program (NOVANA) shows that total currently accounts for nearly 20 % annual N loading coastal waters. a recently...
The primary objectives of peatland restoration are to reduce greenhouse gas emissions and maintain water quality. However, the effects human activities, such as drainage rewetting, on pore quality remain insufficiently understood. In this study, we synthesized data from 197 northern peatlands, encompassing natural, drained, rewetted systems. Our analysis revealed that significantly increases concentrations dissolved organic carbon (DOC), ammonium, phosphate in compared natural peatlands....
Abstract. We here present a detailed dataset of automated greenhouse gas (GHG) net soil and ditch fluxes carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) from drained fen in Denmark covering full year. The resolves small scale spatial hourly-daily-seasonal dynamics GHG fluxes. flux is accompanied by simultaneous time series temperature moisture, as well groundwater table depth covers spatiotemporal gradients hydrological climatic variability. CO2, CH4 N2O were measured simultaneously...
The potential and limitations of the Borehole Nuclear Magnetic Resonance (BNMR) technique as an in situ measurement for peatland soil characterization was tested 163 boreholes at four selected peatlands Denmark. BNMR data effectively differentiated various geological units environments due to their distinct NMR responses. Moreover, field-scale variations porosity pore size distribution (e.g., within a single unit) were mapped reveal possible trends reflecting or hydrogeological conditions...
Abstract Riparian lowlands act as interfaces between the streams and upland areas. This study identified quantified local flow paths in four transects of a 26 ha Danish riparian lowland glacial till landscape. The was fed by drain water from agricultural drainage catchments. Precipitation, stream stage, discharge into were measured continuously, while groundwater hydraulic heads piezometer pipes twice per month. A balance model developed to quantify fluxes leaving area via...
Abstract Riparian lowlands are known to control catchment nitrogen (N) balances. This study examined the role of agricultural tile drainage systems, often present in clay till landscapes, on transport, transformation, and mass balance N species four riparian peat lowland transects receiving water. Monitoring speciation drain, stream, groundwater, combined with a previously established water balance, enabled determination balances for different flow paths including subsurface drain water,...
Artificial drainage of agricultural fields represents a major flow path way both water and nutrients which may contribute to eutrophication issues in the recipient waters. Several studies have shown that riparian lowlands (alluvial plains, wetlands, meadows), if present, act as buffer zones with high nutrient retention capacities. To assess fate tile drained catchments, it is essential know locations outlets sources input. Using thermal infrared (TIR) remote-sensing survey, we identified...
Abstract The assessment and forecasting of nutrient loss by tile drains in agricultural areas often rely on physically based models that have adequate representations macropores drains. Macroporosity has been adequately represented hydrological using a dual continuum approach. However, its implementation solute transport is limited to plot‐scale or one‐ two‐dimensional due the large number parameters are rarely available long computational times. purpose this study simulate tracer test 3D...