Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.agrformet.2024.110322
Licence creative commons licence
Title (Primary) The vulnerability of winter wheat in Germany to air temperature, precipitation or compound extremes is shaped by soil-climate zones
Author Becker, R.; Schauberger, B.; Merz, R.; Schulz, S.; Gornott, C.
Source Titel Agricultural and Forest Meteorology
Year 2025
Department CATHYD
Volume 361
Page From art. 110322
Language englisch
Topic T4 Coastal System
T5 Future Landscapes
Supplements https://ars.els-cdn.com/content/image/1-s2.0-S0168192324004350-mmc1.pdf
Keywords Winter wheat; Climate impact; Heat impact; Drought impact; Compound effects
Abstract Whether hydroclimatic extremes cause yield losses or failures not only depends on their intensity but also on local environmental conditions. These conditions shape the capacity to buffer climatic shocks and thus necessitate a regionally specific impact assessment and adaptation planning. However, the degree to which different environmental conditions affect climate impacts on yields and its spatiotemporal variability across Germany is relatively unknown. In this study, we use a regression-based crop-climate modelling approach for 71 regions, classified according to soil and climate characteristics and investigate region-specific vulnerabilities of winter wheat yields to hydroclimatic extremes for the period 1991–2019. We account for the co-occurrence of temperature and moisture impacts (i.e. compound effects) as well as for local soil-climate conditions. On average, our models can explain approx. 67 % of past winter wheat yield variations. Despite the rather homogeneous climate in Germany, the results reveal clear geographic differences across different soil-climate regions. While the north-eastern regions show a clear dominance of drought impacts, southern regions show stress due to moisture excess. Heat impacts can clearly be linked to the warm regions along the western part of the country. Overall, compound dry-hot extremes pose the strongest and most widespread risk for winter wheat yields in Germany, being responsible for approx. 38 % and in some regions for up to 50 % of past yield variations. Based on the identified regional differences in hydroclimate susceptibility, we can define four geographic risk clusters, which exhibit vulnerability to climatic extremes such as summer droughts, winter droughts, summer heat waves, and winter moisture excess. The identified risk clusters of heat and moisture stresses could inform regional-specific adaptation planning.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=30080
Becker, R., Schauberger, B., Merz, R., Schulz, S., Gornott, C. (2025):
The vulnerability of winter wheat in Germany to air temperature, precipitation or compound extremes is shaped by soil-climate zones
Agric. For. Meteorol. 361 , art. 110322 10.1016/j.agrformet.2024.110322