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Prof. Dr. Frank Ewert

Group Leader

Scientific Director at ZALF

E-Mail: [Email protection active, please enable JavaScript.]
Phone: +49 (0)228 73 2041
Fax: +49 (0)228 73 2870
Office: 1.001

Research profile

I use a range of mathematical modelling and analysis tools to describe and understand how cropping system processes are influenced by management and their environment (climate, CO2, water, nutrients, ozone,…). I am particularly interested in looking at how the response of cropping systems change when considered from different scales to understand how impacts at one scale affect systems at other scales. Another research interest of mine is in integrated systems modelling and the ability of such frameworks to help us understand complex problems such as food security, climate and land use change. With such understanding, scientific assessments of how best to increase the resilience of human-environmental systems and their ability to provision ecosystem services can be added to the mix of information needed by decision makers.

Prof. Dr. Frank Ewert

Current projects

Multiscale modeling of extreme

Modelling European Agriculture with Climate Change for Food Security (MACSUR): European FACCE JPI Knowledge Hub

TR 32: Patterns in Soil-Vegetation-Atmosphere Systems: monitoring, modelling and data assimilation

Crop Sequence and nutrient acquisition from the subsoil

RCR: Resilience, Collapse and Reorganisation in Social-Ecological Systems of African Savannas

WASCAL: West African Science Service Center on Climate and Adapted Land Use

AgMIP: Agricultural Model Intercomparison and Improvement Project

LIAISE: Linking Impact Assessment Instruments to Sustainability Expertise

GlobE - Improving food security in Africa through increased system productivity of biomass-based value webs (BiomassWeb)

Selected publications

Asseng, S., F. Ewert, C. Rosenzweig, J.W. Jones, J.L. Hatfield, A.C. et. al., 2013. Uncertainty in simulating wheat yields under climate change. Nature Climate Change 3, 827-832.

Ewert, F., Van Ittersum, M., Heckelei, T., Therond, O., Bezlepkina, I. und Andersen, E., 2011. Scale changes and model linking methods for integrated assessment of agri-environmental systems. Agriculture, Ecosystems and Environment 142, 6-17.

Adam, M., L.G.J. Van Bussel, P.A. Leffelaar, H. Van Keulen, F. Ewert, 2011. Effects of modelling detail on simulated potential crop yields under a wide range of climatic conditions. Ecological Modelling 222, 131-143.

Van Ittersum, M., Ewert, F., Heckelei, T., Wery, J., Alkan Olsson, J., Andersen, E., Bezlepkina, I., Brouwer, F., Donatelli, M., Flichmann, G., Olsson, L., Rizzoli, A. E., Van der Wal, T., Wien, J. E. and Wolf, J., 2008. Integrated assessment of agricultural systems – A component-based framework for the European Union (SEAMLESS). Agricultural Systems 96, 150-165.

Schroter, D., W. Cramer, R. Leemans, I. C. Prentice, M. B., Ewert, F. et al., 2005. Ecosystem Service Supply and Vulnerability to Global Change in Europe. Science 310, 1333-1337.

Martre, P., D. Wallach, S. Asseng, F. Ewert, J.W. Jones, R.P. Rötter, K.J. Boote, A.C. Ruane, P.J. Thorburn, D. Cammarano, J.L. Hatfield, C. Rosenzweig, P.K. Aggarwal, C. Angulo, B. Basso, P. Bertuzzi, C. Biernath, N. Brisson, A.J. Challinor, J. Doltra, S. Gayler, R. Goldberg, R.F. Grant, L. Heng, J. Hooker, L.A. Hunt, J. Ingwersen, R.C. Izaurralde, K.C. Kersebaum, C. Müller, S.N. Kumar, C. Nendel, G. O'Leary, J.E. Olesen, T.M. Osborne, T. Palosuo, E. Priesack, D. Ripoche, M.A. Semenov, I. Shcherbak, P. Steduto, C.O. Stöckle, P. Stratonovitch, T. Streck, I. Supit, F. Tao, M. Travasso, K. Waha, J.W. White, J. Wolf, in press. Multimodel ensembles of wheat growth: many models are better than one. Global Change Biology, DOI:10.1111/gcb.12768.


• Grundnahrungsmittel
• Grundlagen der Pflanzenproduktion II
• Anbau, Ertragsbildung und Ertragsfaktoren landwirtschaftlicher und gärtnerischer Kulturpflanzen
• Agroecosystems
• Methods for agricultural research data analysis and visualization
• Crop ecology
• Natural resource use and management in plant production
• Crop and ecosystem analysis and modelling


For a more complete listing of my publications and research activities, please visit my personal website:


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