A5055386114- Soil erosion and sediment transport
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Aeolian processes and effects
- Hydrology and Watershed Management Studies
- Hydrology and Sediment Transport Processes
- Microplastics and Plastic Pollution
- Remote Sensing in Agriculture
- Soil Geostatistics and Mapping
- Remote Sensing and LiDAR Applications
- Rangeland Management and Livestock Ecology
- Geochemistry and Geologic Mapping
- Land Use and Ecosystem Services
- Polar Research and Ecology
- Lichen and fungal ecology
- 3D Surveying and Cultural Heritage
- Marine and coastal plant biology
- Soil Mechanics and Vehicle Dynamics
- Soil and Water Nutrient Dynamics
- Robotics and Sensor-Based Localization
- Irrigation Practices and Water Management
- Soil and Unsaturated Flow
- Precipitation Measurement and Analysis
- Coastal wetland ecosystem dynamics
- Supply Chain and Inventory Management
University of Augsburg
2016-2025
ETH Zurich
2019-2024
Board of the Swiss Federal Institutes of Technology
2020-2024
Leibniz Centre for Agricultural Landscape Research
2016-2018
Brandenburg University of Technology Cottbus-Senftenberg
2016-2017
Indian Institute of Technology Madras
2017
University of Cologne
2012
Abstract. Images captured by unmanned aerial vehicles (UAVs) and processed structure-from-motion (SfM) photogrammetry are increasingly used in geomorphology to obtain high-resolution topography data. Conventional georeferencing using ground control points (GCPs) provides reliable positioning, but the geometrical accuracy critically depends on number spatial layout of GCPs. This limits time cost effectiveness. Direct UAV images with differential GNSS, such as PPK (post-processing kinematic),...
Abstract Floating macrophytes, including water hyacinth ( Eichhornia crassipes ), are dominant invasive organisms in tropical aquatic systems and they may play an important role modifying the gas exchange between atmosphere. However, these underrepresented global datasets of greenhouse (GHG) emissions. This study investigated carbon (C) turnover GHG emissions from a small (0.6 km 2 ) water-harvesting lake South India analysed effect floating macrophytes on We measured dioxide (CO methane (CH...
Core Ideas TERENO‐NE investigates the regional impact of global change. We facilitate interdisciplinary geo‐ecological research. Our data sets comprise monitoring and geoarchives. are able to bridge time scales from minutes millennia. The Northeast German Lowland Observatory (TERENO‐NE) was established investigate climate land use focuses on lowlands, for which a high vulnerability has been determined due increasing temperatures decreasing amounts precipitation projected coming decades. To...
Connectivity has been embraced by the geosciences community as a useful concept to understand and describe hydrological functioning sediment movement through catchments. Mathematical modelling used for decades quantify predict erosion transport of sediments, e.g. in scenarios land use change or conservation measures. Being intrigued both models connectivity concept, group modellers we aimed at investigating what different could tell us about connectivity. Therefore, evaluated response...
Abstract Tillage erosion causes substantial soil redistribution that can exceed water especially in hummocky landscapes under highly mechanized large field agriculture. Consequently, truncated profiles be found on hill shoulders and top slopes, whereas colluvial material is accumulated at footslopes, depressions, along downslope borders. We tested the hypothesis substantially affects in‐field patterns of enhanced vegetation index (EVI) different crop types landscape scale. The interrelation...
The ratio of leaf area to ground (leaf index, LAI) is an important state variable in ecosystem studies since it influences fluxes matter and energy between the land surface atmosphere. As a basis for generating temporally continuous spatially distributed datasets LAI, current study contributes analysis its spatial variability structure. Soil-vegetation-atmosphere water, carbon are nonlinearly related LAI. Therefore, heterogeneity, i.e., combination structure, has effect on simulations these...
Abstract. Due to the rapidly growing population in tropical Africa, a substantial rise food demand is predicted upcoming decades, which will result higher pressure on soil resources. However, there limited knowledge redistribution dynamics following land conversion into arable Africa that partly caused by infrastructure limitations for long-term landscape-scale monitoring. In this study, fallout radionuclides 239+240Pu are used assess along topographic gradients at two cropland sites and...
Abstract. Watershed studies are essential for erosion research because they embed real agricultural practices, heterogeneity along the flow path, and realistic field sizes layouts. An extensive literature review covering publications from 1970 to 2018 identified a prominent lack of studies, which (i) observed watersheds that small enough address runoff soil delivery individual land uses, (ii) were considerably smaller than erosive rain cells (<400 ha), (iii) accounted episodic nature...
Abstract. The African Tropics are hotspots of modern-day land use change and are, at the same time, great relevance for cycling carbon (C) nutrients between plants, soils, atmosphere. However, consequences conversion on biogeochemical cycles still largely unknown as they not studied in a landscape context that defines geomorphic, geochemical, pedological framework which biological processes take place. Thus, response tropical soils to disturbance by erosion is one uncertainties assessing...
Soil is polluted with plastic waste from macro to submicron level. Our understanding of macroplastics (> 5 mm) occurrence and behavior has remained comparatively elusive, mainly due a lack tracing mechanism. This study set up methodology trace macroplastic displacement, which combined magnetic iron oxide-tagged soil pieces tagged by an adhesive passive radiofrequency identification transponder. By utilizing these techniques, field was carried out analyze the effect tillage implement sizes on...
Abstract. Soil redistribution on arable land is a major threat for sustainable use of soil resources. The majority studies focus water erosion, while wind and tillage erosion also induce pronounced materials. Tillage especially understudied, as it does not lead to visible off-site damages. analysis on-site/in-field mostly based tracer studies, where radionuclide tracers (e.g. 137Cs, 239+240Pu) from nuclear weapon tests are commonly used derive the history over past 50–60 years. Tracer allow...
Abstract Timely crop monitoring and yield prediction are essential in guiding management decision making. The aim of the study was to estimate agronomic traits paddy rice ( Oryza sativa L.) using unmanned aerial vehicle (UAV)‐multispectral imaging. A randomized complete block design field experiment with a split–split plot arrangement set up Ruzizi plain, Democratic Republic Congo (DRC). Spectral imaging data were collected at tillering panicle initiation stages. Predictive analysis...
The use of plastic films has been growing in agriculture, benefiting consumers and producers. However, concerns have raised about the environmental impact film use, with mulching posing a greater threat than greenhouse films. This calls for large-scale monitoring different uses. We used cloud computing, freely available optical radar satellite images, machine learning to map plastic-mulched farmland (PMF) cover above vegetation (PCV) (e.g., greenhouse, tunnel) across Germany. algorithm...
Abstract. Coupled modelling of soil erosion, carbon redistribution, and turnover has received great attention over the last decades due to large uncertainties regarding erosion-induced fluxes. For a process-oriented representation event dynamics, coupled soil–carbon erosion models have been developed. However, there are currently few that represent tillage preferential water transport different fractions (e.g. mineral bound carbon, encapsulated by aggregates). We couple multi-class sediment...
In the European Union, soil erosion is identified as one of main environmental threats, addressed with a variety rules and regulations for water conservation. The by far most often officially used tool to determine Universal Soil Loss Equation (USLE) its regional adaptions. aim this study use three different USLE-based approaches in test catchments Czech Republic, Germany, Austria differences model results compare these revised USLE-base map. adaptations implementation techniques result...
Abstract. In the last decades, soils and their agricultural management have received great scientific political attention due to potential act as a sink of atmospheric carbon dioxide (CO2). Agricultural has strong accelerate soil redistribution, and, therefore, it is questioned if redistribution processes affect this CO2 function. Most studies analysing effect upon organic (SOC) dynamics focus on water erosion analyse only relatively small catchments short time spans several years decades....
Abstract. Over the last few decades, soil erosion and carbon redistribution modelling has received a lot of attention due to large uncertainties conflicting results. For physically based representation event dynamics, coupled models have been developed. However, there is lack research utilizing which represent preferential transport different fractions (i.e. mineral bound carbon, encapsulated by aggregates particulate organic carbon). Furthermore, most that high temporal resolution are...