A5078950232- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Soil and Water Nutrient Dynamics
- Soil Carbon and Nitrogen Dynamics
- Climate variability and models
- Hydrology and Watershed Management Studies
- Peatlands and Wetlands Ecology
- Plant responses to elevated CO2
- Soil and Unsaturated Flow
- Species Distribution and Climate Change
- Energy Load and Power Forecasting
- Rangeland and Wildlife Management
- Marine and environmental studies
- Geochemistry and Geologic Mapping
- Climate Change Policy and Economics
- Remote Sensing in Agriculture
ETH Zurich
2016-2025
Austrian Research Centre for Forests
2022
Finnish Meteorological Institute
2021
Chinese University of Hong Kong
2021
Northern Arizona University
2021
University of Helsinki
2021
University of Alaska Fairbanks
2021
In Europe, the heterogeneous features of crop systems with majority small to medium sized agricultural holdings, and diversity rotations, require high-resolution information estimate cropland Net Ecosystem Exchange (NEE) its two main components Gross (GEE) Respiration (RECO). this context, paper presents an assimilation Sentinel-2 indices eddy covariance measurements at selected European flux sites in a new modified version Vegetation Photosynthesis Model (VPRM). VRPM is data-driven model...
Agriculture contributes considerably to the increase of global greenhouse gas (GHG) emissions. Hence, magnitude and drivers temporal variations in carbon dioxide (CO2), nitrous oxide (N2O) methane (CH4) fluxes croplands are urgently needed develop sustainable, climate-smart agricultural practices. However, our knowledge GHG from is still very limited. The eddy covariance technique was used quantify budgets N2O emission factors (EF) for pea maize Switzerland. random forest applied gap-filling...
Abstract Reducing water losses in agriculture needs a solid understanding of when evaporation (E) occur and how much is used through crop transpiration (T). Partitioning ecosystem T however challenging, even more so it comes to short‐statured crops, where many standard methods lead inaccurate measurements. In this study, we combined biometeorological measurements with Soil‐Plant‐Atmosphere Crop (SPA‐Crop) model estimate E at Swiss cropland over two seasons winter cereals. We compared our...
Abstract Global agriculture is the largest anthropogenic source for nitrous oxide (N 2 O) emissions. During crop rotations, periods with arable soils without crops, thereafter called “bare soils” are often impossible to avoid after harvested, prior sowing of next crop. However, such underrepresented in studies focussing on N O Here, we present continuous, high-temporal-resolution fluxes during bare soil four major using eddy-covariance technique at two sites Switzerland. Overall, were net...
Under the United Nations Framework Convention on Climate Change (UNFCCC), industrialized countries and with economies in transition (so called Annex 1 countries) are encouraged to move towards more sophisticated approaches for national greenhouse gas reporting. To develop a model-based approach estimating nitrous oxide (N2O) emissions from agricultural soils, model calibration is one of first important steps. Extensive multisite field observations necessary this purpose, as management...
Biochar (BC) application to agricultural soils has become a promising strategy for mitigation of soil-borne greenhouse gas (GHG) emissions, i.e., carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), but little is known about the effects on nitric (NO) dinitrogen (N2) fluxes. We conducted short-term field experiment evaluate BC with compost additional fertilizer different soil GHG Application 1% BC-compost showed no significant effect CH4 CO2 fluxes lowered NO N2O compared control...
Plant growth is controlled by an interplay of internal and external factors. The production biomass via photosynthesis dependent on the plant response to environmental variables such as temperature, vapour pressure deficit light intensity. Short-term responses these at fine temporal scales hours are not well investigated, especially under field conditions. present study explores relationship between leaf elongation rate (LER) young wheat leaves in very high resolution (minutes). Turbulent...
<p>Reducing water losses in agriculture needs a solid understanding of when evaporation (E) occur and how much is used through crop transpiration (T). Partitioning ecosystem T however challenging, even more so it comes to short-statured crops, where many standard methods cannot be applied. In this study, we combined biometeorological measurements with SPA-Crop model estimate E at Swiss cropland over two seasons winter cereals. We compared our results recent data-driven...