A5003172854- Climate change impacts on agriculture
- Plant Water Relations and Carbon Dynamics
- Soil Carbon and Nitrogen Dynamics
- Hydrology and Watershed Management Studies
- Greenhouse Technology and Climate Control
- Crop Yield and Soil Fertility
- Soil and Water Nutrient Dynamics
- Sustainable Agricultural Systems Analysis
- Rice Cultivation and Yield Improvement
- Soil and Unsaturated Flow
- Agricultural Economics and Policy
- Soil Geostatistics and Mapping
- Peatlands and Wetlands Ecology
- Cryospheric studies and observations
- Pesticide and Herbicide Environmental Studies
- Soil Moisture and Remote Sensing
- Geophysics and Gravity Measurements
- Pesticide Residue Analysis and Safety
- Plant responses to elevated CO2
- Soil erosion and sediment transport
- Climate variability and models
- Agriculture, Plant Science, Crop Management
- Climate change and permafrost
- Remote Sensing in Agriculture
- Urban Stormwater Management Solutions
Swedish University of Agricultural Sciences
2013-2024
KTH Royal Institute of Technology
2004
Swiss Federal Institute for Forest, Snow and Landscape Research
2004
Uppsala University
2003
We show the error in water-limited yields simulated by crop models which is associated with spatially aggregated soil and climate input data. Crop simulations at large scales (regional, national, continental) frequently use data of low resolution. Therefore, are often generated via averaging sampling area majority. This may bias scales, varying largely across models. Thus, we evaluated for 14 Yields winter wheat silage maize were under production conditions. calculated this from spatial...
Abstract The structure of soil is critical for the ecosystem services it provides since regulates many key processes, including water, air and solute movement, root growth activity biota. Soil dynamic, driven by external factors such as land management climate mediated a wide range biological agents physical processes operating at strongly contrasting time‐scales, from seconds (e.g., tillage) to decades faunal aggregation). In this respect, positive feedbacks in soil–plant system may lead...
Abstract A major effect of environment on crops is through crop phenology, and therefore, the capacity to predict phenology for new environments important. Mechanistic models are a tool such predictions, but calibration difficult there no consensus best approach. We propose an original, detailed approach models, which we refer as protocol. The protocol covers all steps in workflow, namely choice default parameter values, objective function, parameters estimate from data, calculation optimal...
Soil-crop simulation models are widely used to assess the impacts of soil management and climate change on water balance, solute transport crop production. In this context, it is important that hydrological processes in soil-crop system accurately modelled. We suggest here empirical treatments flow, uptake by plant roots transpiration limit applicability increase prediction errors. further argue empiricism a large extent unnecessary, as parsimonious physics-based descriptions these flow now...
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 65:53-69 (2015) - DOI: https://doi.org/10.3354/cr01326 Contribution Special: 'Modelling climate change impacts for food security' Variability of effects spatial data aggregation on regional yield simulation by crop models H. Hoffmann1,*, G. Zhao1; L. J. van Bussel1,2, A. Enders1, X. Specka3, C. Sosa4, Yeluripati5, 16, F. Tao6,...
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 65:141-157 (2015) - DOI: https://doi.org/10.3354/cr01301 Contribution Special: 'Modelling climate change impacts for food security' Effect of weather data aggregation on regional crop simulation different crops, production conditions, and response variables Gang Zhao1,*, Holger Hoffmann1, Lenny G. J. van Bussel1,2, Andreas...
Soil organic carbon (SOC) is critical for soil quality and agroecosystem sustainability moisture a key component in the response of SOC turnover to climate variations. Several processes are involved regulation decomposition by moisture, but O2 transport large structural pores that drain near saturation particularly important wet soils, which may become more common with increasing flood risk under change. These effects poorly understood because standard incubation experiments disrupt...
Abstract In recent decades European silage maize production has extended northwards, into Scandinavia, and the importance of in fodder increased substantially. For northward expansion it is interest to evaluate both role climate change that occurred already, scenarios for possible future change. The aim this study was assess Swedish climatic conditions, annual variation yield quality (dry weight starch contents) cultivars currently grown Germany. MAISPROQ simulation model used German applied...
Abstract The water and heat balances of an arable field a forest in the boreal zone Scandinavia were explored using 3 yr observations simulations with two different soil–vegetation–atmosphere transfer (SVAT) models over 30-yr period. Results from detailed mechanistic model [coupled mass (COUP)] compared those obtained large-scale type SVAT used weather prediction at European Centre for Medium-Range Weather Forecasts [ECMWF tiled land surface scheme (TESSEL)]. COUP agreed well seasonal...