Stefan Siebert

Prof. Dr.
Head of Crop Science / Agronomy

University of Göttingen
Department of Crop Sciences
Von-Siebold-Strasse 8
37075 Göttingen
Germany
+49 551 39 24359 (phone)
+49 551 39 4601 (fax)

www.uni-goettingen.de/agronomy
stefan.siebert@uni-goettingen.de


 

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Profile

Crop management is a major determinant of crop yields and crop productivity. The interaction of different management factors among themselves and with physical suitability factors like climate and soil or socioeconomic conditions is challenging and poorly understood so far. My research is focused on the analysis of large scale data sets and the development of model components to assess the interaction between resource use, crop management and crop productivity. This includes the generation and improvement of data sets required as models inputs. Other interests are crop modeling in general (phenology, drought and heat stress, crop yields), modeling of virtual water flows and the alteration of ecosystems by anthropogenic impacts.

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Research projects

2017-2020 GlobeDrought: A global-scale tool for characterising droughts and quantifying their impact on water resources, crop productivity, trade in food products, and the need for international food aid (GlobeDrought)
2014-2016 Livestock production systems in the defined pastoral zones around protected forest
areas in Burkina Faso: toward socio-economic transformations of pastoralist
communities’ livelihoods and livestock husbandry practices.
2013-2017 GlobE - Improving food security in Africa through increased system productivity of biomass-based value webs (BiomassWeb)
2012- Geospatial Open Source Hosting of Agriculture, Resource & Environmental Data (GEOSHARE)
2012-2016

Multiscale modeling of extreme events (DFG Paketantrag,http://www.lap.uni-bonn.de/research/research-projects/heat_drought_wheat)

2012-2016
Assessment of EUROpean AGRIculture WATer use and trade under climate change (EURO-AGRIWAT), COST-action ES1106, member of the Management Committee
1999- Development, update, and maintenance of the Digital Global Map of Irrigation Areas
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Teaching

M.Agr.0001 Acker- und pflanzenbauliche Übungen
M.Agr.0035 Methodisches Arbeiten: Interdisziplinäres Seminar
M.Agr.0078 Umweltindikatoren und Ökobilanzen
M.Agr.0112 Forschungsorientiertes Lehren und Lernen im Pflanzenbau: Experimentelle Studien zu wechselnden Themen
B.Agr.0014 Pflanzenbau
B.Agr.0319 Wissenschaftliches Arbeiten und professionelles Präsentieren in der Pflanzenproduktion
B.Agr.0323 Nachhaltigkeit von Produktionssystemen
B.Agr.0329 Pflanzenbau und Pflanzenzüchtung
B.Agr.0351 Übungen zur Nutzpflanzenkunde
B.Agr.0365 Ökologischer Pflanzenbau
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Curriculum Vitae

Since 10/2017 Professor and head of Crop Science / Agronomy, Agricultural Faculty of the University of Göttingen
2016-2017 Temporary head of the Chair Crop Science, Agricultural Faculty of the University of Bonn
2009-2015
Habilitation at the Agricultural Faculty of the University of Bonn, venia legendi in Crop Science and Resource Conservation
2004-2009 Postdoctoral scientist at the Institute of Physical Geography, University of Frankfurt
2003-2005 Ph.D. Student at the Institute of Crop Science, University of Kassel (Dr. agr.)
2002-2004 Scientist at the Institute of Crop Science, University of Kassel
2002-2003 Scientist at the Center for Environmental Systems Research, University of Kassel
1999-2002 Student in ecological agriculture at the University of Kassel (M. Sc.)
1994-1999 Agriculture student at the University of Kassel (Dipl.-Ing.)
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Membership in professional societies

European Society for Agronomy (ESA)
European Geosciences Union (EGU)
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Scientific Social Media

Stefan Siebert at Research Gate Stefan Siebert at ORCID
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Publications

JOURNAL ARTICLES

2018

Eyshi Rezaei, E., Siebert, S., Hüging, H., Ewert, F. (2018). Climate change effect on wheat phenology depends on cultivar change. Scientific Reports 8, 4891. DOI:10.1038/s41598-018-23101-2.

Eyshi Rezaei, E., Siebert, S., Manderscheid, R., Müller, J., Mahrookashani, A., Ehrenpfordt, B., Haensch, J., Weigel, H.-J., Ewert, F., (2018). Quantifying the response of wheat yields to heat stress: The role of the experimental setup. Field Crops Research 217, 93-103. DOI:10.1016/j.fcr.2017.12.015.

Heino, M., Puma, M., Ward, P., Gerten, D., Heck, V., Siebert, S., Kummu, M. (2018). Two-thirds of global cropland area impacted by climate oscillations. Nature Communications 9, 1257. DOI:10.1038/s41467-017-02071-5.

Rueda-Ayala, V., Ahrends, H. E., Siebert, S., Gaiser, T., Hüging, H., Ewert, F. (2018). Impact of nutrient supply on the expression of genetic improvements of cereals and row crops - A case study using data from a long-term fertilization experiment in Germany. European Journal of Agronomy 96, 34-46. DOI:10.1016/j.eja.2018.03.002.

2017

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2017). Climate and management interaction cause diverse crop phenology trends. Agricultural and Forest Meteorology 233, 55-70. DOI:10.1016/j.agrformet.2016.11.003.

Grosz, B., Dechow, R., Gebbert, S., Hoffmann, H., Zhao, G., Constantin, J., Raynal, H., Wallach, D., Coucheney, E., Lewan, E., Eckersten, H., Specka, X., Kersebaum, K.-C., Nendel, C., Kuhnert, M., Yeluripati, J., Haas, E., Teixeira, E., Bindi, M., Trombi, G., Moriondo, M., Doro, L., Roggero, P.P., Zhao, Z., Wang, E., Tao, F., Rötter, R., Kassie, B., Cammarano, D., Asseng, S., Weihermüller, L., Siebert, S., Gaiser, T., Ewert, F. (2017) The implication of input data aggregation on up-scaling soil organic carbon changes. Environmental Modelling & Software 96, 361-377. DOI:10.1016/j.envsoft.2017.06.046.

Kummu, M., Fader, M., Gerten, D., Guillaume, J. H. A., Jalava, M., Jägermeyr, J., Pfister, S., Porkka, M., Siebert, S. and Varis, O. (2017). Bringing it all together: linking measures to secure nations’ food supply. Current Opinion in Environmental Sustainability 29, 98-117. DOI:10.1016/j.cosust.2018.01.006.

Mahrookashani, A., Siebert, S., Hüging, H., Ewert, F. (2017). Independent and combined effects of high temperature and drought stress around anthesis on wheat. Journal of Agronomy and Crop Science 203, 453-463. DOI:10.1111/jac.12218.

Mueller, N.D., Rhines, A., Butler, E.D., Ray, D.K., Siebert, S., Holbrook, N.M. (2017). Global relationships between cropland intensification and summer temperature extremes over the last 50 years. Journal of Climate 30, 7505-7528. DOI:10.1175/JCLI-D-17-0096.1.

Porkka, M., Guillaume, J.H.A., Siebert, S., Schaphoff, S., Kummu, M. (2017). The use of food imports to overcome local limits to growth. Earth's Future 5, 393-407. DOI:10.1002/2016EF000477.

Scanlon, B.R., Ruddell, B.L., Reed, P.M., Hook, R.I., Zheng, C., Tidwell, V.C., Siebert, S. (2017). The food–energy–water nexus: Transforming science for society. Water Resources Research 53, 3550-3556. DOI:10.1002/2017WR020889.

Siebert, S., Webber, H., Eyshi Rezaei, E. (2017). Weather impacts on crop yields - searching for simple answers to a complex problem. Environmental Research Letters 12, 081001. DOI:10.1088/1748-9326/aa7f15.

Siebert, S., Webber, H., Zhao, G., Ewert, F. (2017). Heat stress is overestimated in climate impact studies for irrigated agriculture. Environmental Research Letters 12, 054023. DOI:10.1088/1748-9326/aa702f.

2016

Hoffmann, H., Zhao, G., Asseng, S., Bindi, M., Biernath, C., Constantin, J., Coucheney, E., Dechow, R., Doro, L., Eckersten, H., Gaiser, T., Grosz, B., Heinlein, F., Kassie, B. T., Kersebaum, K.-C., Klein, C., Kuhnert, M., Lewan, E., Moriondo, M., Nendel, C., Priesack, E., Raynal, H., Roggero, P. P., Rötter, R. P., Siebert, S., Specka, X., Tao, F., Teixeira, E., Trombi, G., Wallach, D., Weihermüller, L., Yeluripati, J.,Ewert, F. (2016). Impact of spatial soil and climate input data aggregation on regional yield simulations. PLoS ONE 11, e0151782. DOI:10.1371/journal.pone.0151782.

Jalava, M., Guillaume, J.A.H., Kummu, M., Porkka, M., Siebert, S., Varis, O. (2016). Diet change and food loss reduction: what is their combined impact on global water use and scarcity? Earth's Future 4, 62-78. DOI:10.1002/2015EF000327.

Kummu, M., Guillaume, J.H.A., de Moel, H., Eisner, S., Flörke, M., Porkka, M., Siebert, S., Veldkamp, T.I.E., Ward, P.J. (2016). The world’s road to water scarcity: shortage and stress in the 20th century and pathways towards sustainability. Scientific Reports 6, 38495. DOI:10.1038/srep38495.

Porkka, M., Gerten, D., Schaphoff, S., Siebert, S., Kummu, M. (2016). Causes and trends of water scarcity in food production. Environmental Research Letters 11, 015001. DOI:10.1088/1748-9326/11/1/015001.

Reyes, J., Schellberg, J., Siebert, S., Elsässer, M., Adam, J., Ewert, F. (2016). Improved estimation of nitrogen uptake in grasslands using the nitrogen dilution curve – reply to the letter to the editor by Lemaire and Gastal, 2016. Agronomy for Sustainable Development 36, 51. DOI:10.1007/s13593-016-0389-3.

Webber, H., Ewert, F., Kimball, B.A., Siebert, S., White, J.A., Trawally, D.N., Wall, G.W., Ottman, M.A., Gaiser, T. (2016). Simulating canopy temperature for modelling heat stress in crops. Environmental Modelling & Software 77, 143-155. DOI:10.1016/j.envsoft.2015.12.003.

Zhao, G., Hoffmann, H., Yeluripati, J., Xenia, S., Nendel, C., Coucheney, E., Kuhnert, M., Tao, F., Constantin, J., Raynal, H., Teixeira, E., Grosz, B., Doro, L., Kiese, R., Eckersten, H., Haas, E., Cammarano, D., Kassie, B., Moriondo, M., Trombi, G., Bindi, M., Biernath, C., Heinlein, F., Klein, C., Priesack, E., Lewan, E., Kersebaum, K.-C., Rötter, R., Roggero, P. P., Wallach, D., Asseng, S., Siebert, S., Gaiser, T., Ewert, F. (2016). Evaluating the precision of eight spatial sampling schemes in estimating regional means of simulated yield for two crops. Environmental Modelling & Software 80, 100-112. DOI:10.1016/j.envsoft.2016.02.022.

2015

Eyshi Rezaei, E., Gaiser, T., Siebert, S., Ewert, F. (2015). Adaptation of crop production to climate change by crop substitution. Mitigation and Adaptation Strategies for Global Change 20, 1155-1174. DOI:10.1007/s11027-013-9528-1.

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2015). Impact of data resolution on heat and drought stress simulated for winter wheat in Germany. European Journal of Agronomy 65, 69-82. DOI:10.1016/j.eja.2015.02.003.

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2015). Intensity of heat stress in winter wheat – phenology compensates for the adverse effect of global warming. Environmental Research Letters 10, 024012. DOI:10.1088/1748-9326/10/2/024012.

Hoffmann, H., Zhao, G., van Bussel, L.G.J., Enders, A., Specka, X., Sosa, C., Yeluripati, J., Tao, F., Constantin, J., Raynal, H., Teixeira, E., Grosz, B., Doro, L., Zhao, Z., Wang, E., Nendel, C., Kersebaum, K.C., Haas, E., Kiese, R., Klatt, S., Eckersten, H., Vanuytrecht, E., Kuhnert, M., Lewan, E., Rötter, R., Roggero, P.P., Wallach, D., Cammarano, D., Asseng, S., Krauss, G., Siebert, S., Gaiser, T., Ewert, F. (2015). Variability of effects of spatial climate data aggregation on regional yield simulation by crop models. Climate Research 65, 53-69. DOI:10.3354/cr01326.

Reyes, J., Schellberg, J., Siebert, S., Elsässer, M., Adam, J., Ewert, F. (2015). Improved estimation of nitrogen uptake in grasslands using the nitrogen dilution curve. Agronomy for Sustainable Development 35, 1561-1570. DOI:10.1007/s13593-015-0321-2.

Siebert, S., Kummu, M., Porkka, M., Döll, P., Ramankutty, N., Scanlon, B. R. (2015). A global dataset of the extent of irrigated land from 1900 to 2005. Hydrology and Earth System Sciences 19, 1521-1545. DOI:10.5194/hess-19-1521-2015 .

Smilovic, M., Gleeson, T., Siebert, S. (2015). The limits of increasing food production with irrigation in India. Food Security 7, 835-856. DOI:10.1007/s12571-015-0477-2.

Van Bussel, L.G.J., Stehfest, E., Siebert, S., Müller, C., Ewert, F. (2015). Simulation of the phenological development of wheat and maize at the global scale. Global Ecology and Biogeography 24, 1018-1029. DOI:10.1111/geb.12351.

Zhao, G. Hoffmann, H., van Bussel, L.G.J., Enders, A., Specka, X., Sosa, C., Yeluripati, J., Tao, F., Constantin, J., Raynal, H., Teixeira, E., Grosz, B., Doro, L., Zhao, Z., Nendel, C., Kiese, R., Eckersten, H., Haas, E., Vanuytrecht, E., Wang, E., Kuhnert, M., Trombi, G., Moriondo, M., Bindi, M., Lewan, E., Bach, M., Kersebaum, K.C., Rötter, R., Roggero, P.P., Wallach, D., Cammarano, D., Asseng, S., Krauss, G., Siebert, S., Gaiser, T., Ewert, F. (2015). Effect of weather data aggregation on regional crop simulation for different crops, production conditions, and response variables. Climate Research 65, 141-157. DOI:10.3354/cr01301.

Zhao, G., Siebert, S., Enders, A., Eyshi Rezaei, E., Yan, C., Ewert, F. (2015). Demand for multi-scale weather data for regional crop modelling. Agricultural and Forest Meteorology 200, 156-171. DOI:10.1016/j.agrformet.2014.09.026.

Zhao, G., Webber, H., Hoffmann, H., Wolf, J., Siebert, S., Ewert, F. (2015). The implication of irrigation in climate change impact assessment: a European wide study. Global Change Biology 21, 4031-4048. DOI:10.1111/gcb.13008.

2014

Eyshi Rezaei, E., Gaiser, T., Siebert, S., Sultan, B., Ewert, F. (2014). Combined impacts of climate and nutrient fertilisation on yields of pearl millet in Niger. European Journal of Agronomy 55, 77-88. DOI:10.1016/j.eja.2014.02.001.

Jalava, M., Kummu, M., Porkka, M., Siebert, S., Varis, O. (2014). Diet change – a solution to reduce water use? Environmental Research Letters 9, 074016. DOI:10.1088/1748-9326/9/7/074016 .

Hoff, H., Döll, P., Fader, M., Gerten, D., Hauser, S., Siebert, S. (2014). Water footprints of cities - indicators for sustainable consumption and production. Hydrology and Earth System Sciences 18, 213-226, DOI:10.5194/hess-18-213-2014 .

Siebert, S., Ewert, F., Eyshi Rezaei, E., Kage, H., Graß, R. (2014). Impact of heat stress on crop yield—on the importance of considering canopy temperature. Environmental Research Letters 9, 044012. DOI:10.1088/1748-9326/9/4/044012 .

Siebert, S., Ewert, F. (2014). Future crop production threatened by extreme heat. Environmental Research Letters 9, 041001. DOI:10.1088/1748-9326/9/4/041001 .

West, P.C., Gerber, J.S., Mueller, N.D., Brauman, K.A., Carlson, K.M., Cassidy, E.S., Engstrom, P.M., Johnston, M., MacDonald, G.K., Ray, D.K., Siebert, S. (2014). Leverage points for improving food security and the environment. Science 345, 325-328. DOI:10.1126/science.1246067.

2013

Brauman, K.A., Siebert, S., Foley, J.A. (2013). Improvements in crop water productivity increase water sustainability and food security – a global analysis. Environmental Research Letters 8, 024030, DOI:10.1088/1748-9326/8/2/024030 .

Porkka, M., Kummu, M., Siebert, S., Varis, O. (2013). From food insufficiency towards trade dependency: A historical analysis of global food availability. PLoS ONE 8, e82714. DOI:10.1371/journal.pone.0082714 .

2012

Döll, P., Hoffmann-Dobrev, H., Portmann, F.T., Siebert, S., Eicker, A., Rodell, M., Strassberg, G., Scanlon, B.R. (2012). Impact of water withdrawals from groundwater and surface water on continental water storage variations. Journal of Geodynamics 59-60, 143-156, DOI:10.1016/j.jog.2011.05.001.

Elsgaard, L., Børgesen, C.D., Olesen, J.E., Siebert, S., Ewert, F., Peltonen-Sainio, P., Rötter, R.P., Skjelvåg, A.O. (2012). Shifts in comparative advantages for maize, oat, and wheat cropping under climate change in Europe. Food Additives and Contaminants: Part A 29, 1514-1526, DOI:10.1080/19440049.2012.700953.

Kummu, M., de Moel, H., Porkka, M., Siebert, S., Varis, O., Ward, P.J. (2012). Lost food, wasted resources: global food supply chain losses and their impacts on freshwater, cropland, and fertiliser use. Science of the Total Environment 438, 477-489, DOI:10.1016/j.scitotenv.2012.08.092 .

Olesen, J.E., Børgesen, C.D., Elsgaard, L., Palosuo, T., Rötter, R.P., Skjelvåg, A.O., Peltonen-Sainio, P., Börjesson, T., Trnka, M., Ewert, F., Siebert, S., Brisson, N., Eitzinger, J., van Asselt, E.D., , Oberforster, M., van der Fels-Klerx, H.J. (2012). Changes in time of sowing, flowering and maturity of cereals in Europe under climate change. Food Additives and Contaminants: Part A 29, 1527-1542, DOI:10.1080/19440049.2012.712060.

Porkka, M., Kummu, M., Siebert, S., Flörke, M. (2012). The role of virtual water flows in physical water scarcity: The case of Central Asia. International Journal of Water Resources Development 28, 453-474, DOI:10.1080/07900627.2012.684310.

Siebert, S., Ewert, F. (2012). Spatio-temporal patterns of phenological development in Germany in relation to temperature and day length. Agricultural and Forest Meteorology 152(1), 44-57, DOI:10.1016/j.agrformet.2011.08.007.

2011

Foley, J.A., Ramankutty, N., Brauman, K.A., Cassidy, E.S., Gerber, J.S., Johnston, M., Mueller, N.D., O’Connell, C., Ray, D.K., West, P.C., Balze, C., Bennett, E.M., Carpenter, S.R., Hill, J., Monfreda, C., Polasky, S., Rockström, J. Sheehan, J., Siebert, S., Tilman, D., Zaks, D.P.M. (2011). Solutions for a cultivated planet. Nature 478, 337-342, DOI:10.1038/nature10452.

Neumann, K., Stehfest, E., Verburg, P., Siebert, S., Müller, C., Veldkamp, T. (2011). Exploring global irrigation patterns: A multilevel modelling approach. Agricultural Systems 104, 703-713, DOI:10.1016/j.agsy.2011.08.004.

2010

Ellis, E. C., Klein Goldewijk, K., Siebert, S., Lightman, D., Ramankutty, N. (2010). Anthropogenic transformation of the biomes, 1700 to 2000. Global Ecology and Biogeography 19(5), 589-606, DOI:10.1111/j.1466-8238.2010.00540.x.

Portmann, F. T., Siebert, S., Döll, P. (2010). MIRCA2000-Global monthly irrigated and rainfed crop areas around the year 2000: A new high-resolution data set for agricultural and hydrological modeling. Global Biogeochemical Cycles 24, GB1011, DOI:10.1029/2008GB003435.

Siebert, S., Burke, J., Faures, J. M., Frenken, K., Hoogeveen, J., Döll, P., Portmann, F. T. (2010). Groundwater use for irrigation – a global inventory. Hydrology and Earth System Sciences 14, 1863-1880, DOI:10.5194/hess-14-1863-2010 .

Siebert, S., Döll, P. (2010). Quantifying blue and green virtual water contents in global crop production as well as potential production losses without irrigation. Journal of Hydrology 384(3-4), 198-217, DOI:10.1016/j.jhydrol.2009.07.031.

Siebert, S., Portmann, F. T., Döll, P. (2010). Global patterns of cropland use intensity. Remote Sensing 2(7), 1625-1643, DOI:10.3390/rs2071625 .

Before 2010

Moreau, M., Siebert, S., Buerkert, A., Schlecht, E. (2009). Use of a tri-axial accelerometer for automated recording and classification of goats' grazing behaviour. Applied Animal Behaviour Science 119(3-4), 158-170, DOI:10.1016/j.applanim.2009.04.008.

Luedeling, E., Siebert, S., Buerkert, A. (2007). Filling the voids in the SRTM Elevation Model - A TIN-based delta surface approach. ISPRS Journal of Photogrammetry and Remote Sensing 62(4), 283-294, DOI:10.1016/j.isprsjprs.2007.05.004.

Siebert, S., Nagieb, M., Buerkert, A. (2007). Climate and irrigation water use of a mountain oasis in northern Oman. Agricultural Water Management 89(1-2), 1-14, DOI:10.1016/j.agwat.2006.11.004.

Buerkert, A., Nagieb, M., Siebert, S., Khan, I., Al-Maskri, A. (2005). Nutrient cycling and field-based partial nutrient balances in two mountain oases of Oman. Field Crops Research 94(2-3), 149-164, DOI:10.1016/j.fcr.2004.12.003.

Siebert, S., Döll, P., Hoogeveen, J., Faures, J-M., Frenken, K., Feick, S. (2005). Development and validation of the global map of irrigation areas. Hydrology and Earth System Sciences 9, 535-547, DOI:10.5194/hess-9-535-2005 .

Siebert, S., Häser, J., Nagieb, M., Korn, L., Buerkert, A. (2005). Agricultural, architectural and archaeological evidence for the role and ecological adaptation of a scattered mountain oasis in Oman. Journal of Arid Environments 62(1), 177-197, DOI:10.1016/j.jaridenv.2004.09.023.

Van Drecht, G., Bouwman, A. F., Boyer, E. W., Green, P., Siebert, S. (2005). A comparison of global spatial distributions of nitrogen inputs for nonpoint sources and effects on river nitrogen export. Global Biogeochemical Cycles 19(4), GB4S06, DOI:10.1029/2005GB002454.

Korn, L., Häser, J., Schreiber, J., Gangler, A., Nagieb, M., Siebert, S., Buerkert, A. (2004). Tiwi, Ash Shab and Wadi Tiwi: the development of an oasis on the north-eastern coast of Oman. Journal of Oman Studies 13, 57-90, ==> link to article.

Nagieb, M., Siebert, S., Luedeling, E., Buerkert, A., Häser, J. (2004). Settlement history of a mountain oasis in Northern Oman – evidence from land-use and archaeological studies. Die Erde 135, 81-106, ==> link to article.

Siebert, S., Gries, D., Zhang, X., Runge, M., Buerkert, A. (2004). Non-destructive dry matter estimation of Alhagi sparsifolia vegetation in a desert oasis of Northwest China. Journal of Vegetation Science 15(3), 365-372, ==> link to article, ==> link to journal.

Alcamo, J., Döll, P., Henrichs, T., Kaspar, F., Lehner, B., Rösch, T., Siebert, S. (2003). Development and testing of the WaterGAP 2 global model of water use and availability. Hydrological Sciences Journal 48(3), 317-338, DOI:10.1623/hysj.48.3.317.45290.

Alcamo, J., Döll, P., Henrichs, T., Kaspar, F., Lehner, B., Rösch, T., Siebert, S. (2003). Global estimates of water withdrawals and availability under current and future "business-as-usual" conditions. Hydrological Sciences Journal 48(3), 339-348, DOI:10.1623/hysj.48.3.339.45278.

Döll, P., Siebert, S. (2002). Global modeling of irrigation water requirements. Water Resources Research 38(4), 8.1-8.10, DOI:10.1029/2001WR000355.

Döll, P., Siebert, S. (2000). A digital global map of irrigated areas. ICID Journal 49(2), 55-66, ==> link to article.

 

BOOKS

Siebert, S. (2014). Improving the understanding of crop production systems by enhanced representation of resource use and management in large scale modeling. Habilitation thesis, 500 pp.

Siebert, S. (2006): Analysis of arid agricultural systems using quantitative image analysis, modelling and geographical information systems. Kassel University Press, Dissertation, 180 pp. ==> link to publication

 

BOOK CHAPTERS

Siebert, S., Döll, P. (2014). Blue and Green Virtual Water Flows. In: K. Sebastian (ed.). Atlas of African agriculture research and development. International Food Policy Research Institute (IFPRI), Washington, USA, 46-47. DOI:10.2499/9780896298460. ==> link to the eAtlas portal ==> link to the pdf-version of the atlas

Siebert, S., Döll, P. (2014). Blue and Green Water Use by Irrigated Crops. In: K. Sebastian (ed.). Atlas of African agriculture research and development. International Food Policy Research Institute (IFPRI), Washington, USA, 48-49. DOI:10.2499/9780896298460. ==> link to the eAtlas portal ==> link to the pdf-version of the atlas

Siebert, S., Döll, P., Portmann, F. T. (2014). Cropping intensity. In: K. Sebastian (ed.). Atlas of African agriculture research and development. International Food Policy Research Institute (IFPRI), Washington, USA, 28-29. DOI:10.2499/9780896298460. ==> link to the eAtlas portal ==> link to the pdf-version of the atlas

Siebert, S., Frenken, K. (2014). Irrigated areas. In: K. Sebastian (ed.). Atlas of African agriculture research and development. International Food Policy Research Institute (IFPRI), Washington, USA, 18-19. DOI:10.2499/9780896298460. ==> link to the eAtlas portal ==> link to the pdf-version of the atlas

Siebert, S., Döll, P. (2011). Bewässerungswassernutzung – eine globale Perspektive. In: Lozán, J.L., H. Graßl, P. Hupfer, L. Karbe & C-D. Schönwiese (eds.): Warnsignal Klima: Genug Wasser für alle? Climate Service Center, Helmholtz-Zentrum Geesthacht, Germany, 173-178, ==> link to article ==> link to e-book.

Siebert, S., Döll, P. (2007). Irrigation water use - A global perspective. In: Lozán, J.L., H. Graßl, P. Hupfer, L. Menzel & C-D. Schönwiese (eds.): Global Change: Enough Water for all? Universität Hamburg / GEO, 104-107, ==> link to article.

Döll, P., Kaspar, F., Siebert, S., Alcamo, J. (1999). Global modeling of runoff and irrigation requirements in typical dry years. In Gottschalk, L., Olivry, J.-C., Reed, D., Rosbjerg, D. (eds.): Hydrological Extremes: Understanding, Predicting, Mitigating. Publication 255, IAHS Press, Wallingford, Great Britain, 137-143.

 

CONFERENCE CONTRIBUTIONS - TALKS

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2016). Data aggregation does not reduce signals of heat and drought stress in large area yield simulations. Proceedings of the International Crop Modelling Symposium iCROPM2016, 254-255, March 15-17, Berlin, Germany. => download conference proceedings

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2015). Climate change effects on intensity of heat stress in winter wheat. Mitt. Ges. Pflanzenbauwiss. 27, 55-56.

Mieno, T., Nelson, E. J., Smith, W. K., Pennington, D. N., Gerber, J. S., West, P. C., Polasky, S., Johnson, J. A., Brauman, K. A., Carlson, K. M., Siebert, S., Lambin, E. F., Arbuthnot, M. (2015). Closing yield gap: The role of investments in land quality improvement. 100th ESA Annual Meeting, August 9-14, Baltimore, USA.

Siebert, S., Ewert, F., Eyshi Rezaei, E. (2015). Durch Extremwetter hervorgerufene Ertragsanomalien variieren räumlich, zeitlich und auch zwischen Feldfrüchten. Mitt. Ges. Pflanzenbauwiss. 27, 47-48.

W. K. Smith, Johnson, J. A., Mieno, T., Nelson, E. J., West, P. C., Gerber, J. S., Polasky, S., Siebert, S., Lambin, E. F., Carlson, K. M., Brauman, K. A., Arbuthnot, M., Pennington, D. N. (2015). Can sustainability standards promote winwin opportunities: An exploration of the potential outcomes of largescale compliance with Bonsucro sustainability standards. 100th ESA Annual Meeting, August 9-14, Baltimore, USA.

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2013). Temperature routines in SIMPLACE. Proceedings of the "Workshop on modeling wheat response to high temperature", June 19-21, El Batán, Mexico, 107-109.

Kummu, M., Porkka, M., Siebert, S., Eisner, S., Flörke, M., Ward, P. (2013). Towards improved understanding of spatio-temporal water use patterns for the 20th century. Global Water Systems Project Conference "Water in the Anthropocene", May 21-24, Bonn, Germany. ==> download presentation as pdf

Porkka, M., Kummu, M., Varis, O., Siebert, S. (2013). From food-insecurity towards trade-dependency: A historical analysis of global food security. Futures for Food conference, June 6-7, Turku, Finland. ==> download presentation as pdf

Siebert, S. (2012). Is population density driving land use intensity and extent of irrigated land? IAMO Forum 2012: Land use in transition, June 20-22, Halle, Germany. ==> download presentation as pdf

Siebert, S., Ewert, F. (2012). Impact of heat stress, drought and wetness on crop yield anomalies in Germany. Proceedings of the 12th Congress of the European Society for Agronomy, August 20-24, 2012, Helsinki, Finland, 162-163.

Hoff, H., Döll, P., Siebert, S. (2011). Virtual (green and blue) watersheds of cities. Abstract Volume of the World Water Week in Stockholm, August 21–27, 238.

Siebert, S. (2010). Intensification and the global emergence of irrigated agriculture. Ester Boserup Conference, November 15-17, Vienna, Austria, Book of abstracts, 59.

Van Bussel, L.G.J., Stehfest, E., Siebert, S., Ewert, F. (2010). Simulating photoperiodic sensitivity of wheat at global scale. Proceedings of the 11th Congress of the European Society for Agronomy. August 29 - September 3, Montpellier, France, 941-942.

Siebert, S., Hoogeveen, J., Döll, P., Faurès, J.-M., Feick, S., Frenken, K. (2006). The digital global map of irrigation areas – development and validation of map version 4. Tropentag 2006, October 11-13, Bonn, Germany, Book of abstracts, 117.

Buerkert, A., Nagieb, M., Siebert, S., Luedeling, E., Quintern, M. and Alkhanjari, S. (2005). Plant genetic diversity, irrigation and nutrient cycling in traditional mountain oases of Northern Oman. In: Li, C.J. et al. (eds.). Plant Nutrition for Food Security, Human Health and Environmental Protection. Tsinghua University Press, Beijing, China, 1072-1073.

Gräfe, S., Siebert, S., Brülheide, H., Bürkert, A. (2004). Changes in the agricultural structure of the Quira Oasis. In: Runge, M. and Zhang X. (ed.): Ecophysiology and Habitat Requirements of Prennial Plant Species in the Taklimakan Desert. Contributions to a "Workshop on Sustainable Management of the Shelterbelt Vegetation of River Oases in the Taklimakan Desert", Urumqui 2003, 35-41.

Siebert, S., Döll, P., Hunger, M. (2004). Global-scale scenarios and modelling as tools for managing large scale nitrogen pollution. In: Halm, D. and Grathwohl, P. (eds.): Proceedings of the 2nd International Workshop on Integrated Soil and Water Protection: Risks from Diffuse Pollution (SOWA) held in Prague, Czech Republic, from 28 to 29 June 2004, Center for Applied Geoscience, Eberhard Karls University of Tübingen, Tübingen, Germany, 99-104.

Siebert, S., Gries, D., Zhang, X., Runge, M., Buerkert, A. (2004). Non-destructive dry matter estimation of Alhagi sparsifolia vegetation in a desert oasis of NW China. In: Runge, M. and Zhang, X. (eds.): Ecophysiology and habitat requirements of perennial plant species in the Taklimakandesert. Contributions to a “Workshop on Sustainable Management of the Shelterbelt Vegetation of River Oases in the Taklimakan Desert“, Urumqi 2003, 121-122.

Luedeling, E., Siebert, S., Wichern, F., Aeschbach-Hertig, W., Nagieb, M., Müller, T., Buerkert, A. (2002). The hydrology of mountain oases in northern Oman. Tropentag 2002, October 9-11, Kassel-Witzenhausen, Germany, Book of abstracts, 45.

 

CONFERENCE CONTRIBUTIONS - POSTERS

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2015). Effect of data aggregation on crop yield simulated at large scale. Mitt. Ges. Pflanzenbauwiss. 27, 269-270. ==> link to poster

Eyshi Rezaei, E., Siebert, S., Ewert, F. (2014). Effect of data aggregation on crop yields simulated at large scales. 13th Congress of the European Society for Agronomy, August 25-29, Debrecen, Hungary. ==> link to poster

Hoffmann, H., Zhao, G., van Bussel, L., Enders, A., Specka, X., Sosa, C., Yeluripati, J., Tao, F., Constantin, J., Teixeira, E., Grosz, B., Doro, L., Zhao, Z., Nendel, C., Kiese, R., Raynal, H., Eckersten, H., Haas, E., Wang, E., Kuhnert, M., Lewan, E., Bach, M., Kersebaum, K. C., Rötter, R., Roggero, P. P., Wallach, D., Krauss, G., Siebert, S., Gaiser, T., Ewert, F. (2014). Influence of climate input data aggregation on simulated yield. 13th Congress of the European Society for Agronomy, August 25-29, Debrecen, Hungary.

Kummu M., de Moel, H., Eisner, S., Flörke, M., Siebert, S. and Varis, O. (2014). Global physical water scarcity trajectories for the 20th century. European Geosciences Union General Assembly 2014, April 27 - May 2, Vienna, Austria, Geophysical Research Abstracts 16, EGU2014-12310.

Waha, K., Bondeau, A., Frolking, S., Portmann, F. T., Siebert, S. (2014). Representation of multiple cropping systems in land use data sets. Global Vegetation Monitoring and Modeling (GV2M) Conference, February 3-7, Avignon, France, Book of abstracts, 164-165.

Zhao, G., Hoffmann, H., van Bussel, L., Enders, A., Specka, X., Sosa, C., Yeluripati, J., Tao, F., Constantin, J., Teixeira, E., Grosz, B., Doro, L., Zhao, Z., Vanuytrecht, E., Cammarano, D., Nendel, C., Kiese, R., Raynal, H., Eckersten, H., Klatt, S., Haas, E., Kersebaum, K. C., Kuhnert, M., Wang, E., Lewan, E., Bach, M., Rötter, R., Wallach, D., Krauss, G., Siebert, S., Gaiser, T., Asseng, S., Ewert, F. (2014). Effect of weather data aggregation on regional crop simulations for different crops, production conditions, and response variables. 13th Congress of the European Society for Agronomy, August 25-29, Debrecen, Hungary.

Porkka, M., Kummu, M., Varis, O., Siebert, S. (2013). From food insufficiency towards trade dependency: a historical analysis of global food availability. Global Food Security Conference, September 29 - October 2, Noordwijkerhout, The Netherlands, Poster P4.32. ==> link to poster

Brauman, K. A., Siebert, S., Foley, J. A. (2012). Water wise - Are we getting enough crop per drop? Planet Under Pressure Conference 2012, March 26-29, London, UK. ==> link to poster

Hüging, H., Siebert, S., Ewert, F. (2012). Impact of fertilization on crop yield anomalies in the long-term experiment Dikopshof. Mitt. Ges. Pflanzenbauwiss. 24: 244-244. ==> link to poster

Kummu, M., de Moel, H., Porkka, M., Siebert, S., Varis, O., Ward, P. J. (2012). Lost food, wasted water: global food supply chain losses and their impacts on freshwater use. World Water Week, August 21-27, Stockholm, Sweden. ==> link to poster

Siebert, S., Ewert, F. (2012). Impact of heat stress, drought and wetness on crop yield anomalies in Germany. Proceedings of the 12th Congress of the European Society for Agronomy, August 20-24, 2012, Helsinki, Finland, 162-163. ==> link to poster

Brauman, K. A., Siebert, S., Foley, J. A. (2011). Worldwide trends in agricultural water use. AGU Fall Meeting, December 5-9, San Francisco, California, USA, Abstract H12F-08.

Siebert, S., Ewert, F. (2011). Spatio-temporal patterns of phenological development in Germany in relation to temperature and day length. Gemeinsame Jahrestagung der Deutschen Gesellschaften für Pflanzenernährung und Pflanzenbauwissenschaften, September 27-29, Kiel, Germany, Book of abstracts, 182. ==> link to poster

Ellis, E., Klein Goldewijk, K., Siebert, S., Lightman, D., Ramankutty, N. (2009). Human transformation of the terrestrial biosphere: form, extent, duration, and intensity. AGU Fall Meeting, December 14-18, San Francisco, California, USA, Abstract EP43E-0682.

Portmann, F., Döll, P., Siebert, S. (2006). Global dataset of monthly crop-specific irrigated areas around the year 2000. Tropentag 2006, October 11-13, Bonn, Germany, Book of abstracts, 269.

Siebert, S., Hoogeveen, J., Döll, P., Faurès, J.-M., Feick, S., Frenken, K. (2006). The digital global map of irrigation areas – development and validation of map version 4. Tropentag 2006, October 11-13, Bonn, Germany, Book of abstracts, 278.

Döll, P., Alcamo, J., Henrichs, T., Kaspar, F., Lehner, B., Rösch, T., Siebert, S., Vassolo, S. (2002). The global water model WaterGAP 2: hydrology model and water use model. Tropentag 2002, October 9-11, Kassel-Witzenhausen, Germany, Book of abstracts, 117.

Nagieb, M., Siebert, S., Buerkert, A. (2002). GIS-based survey and nutrient fluxes in a mountain oasis of Oman. Tropentag 2002, October 9-11, Kassel-Witzenhausen, Germany, Book of abstracts, 214.

Weier, H., Nagieb, M., Siebert, S. (2002). Water as a natural resource of the Oman mountains. Tropentag 2002, October 9-11, Kassel-Witzenhausen, Germany, Book of abstracts, 51.

Nagieb, M., Siebert, S., Buerkert, A. (2001). GIS-based survey and nutrient fluxes in a mountain oasis of Oman. Tropentag 2001, October 9-11, Bonn, Germany, Book of abstracts, 46.

Siebert, S., Gries, D., Runge, M., Buerkert, A. (2001). Non-destructive dry matter estimation of Alhagi sparsifolia vegetation in NW China through GIS-based kite photography. Tropentag 2001, October 9-11, Bonn, Germany, Book of abstracts, 47.

 

RESEARCH REPORTS

Siebert, S., Henrich, V., Frenken, K., Burke, J. (2013). Update of the global map of irrigation areas to version 5. Project report, 170 pp, DOI:10.13140/2.1.2660.6728.

Freydank, K., Siebert, S. (2008). Towards mapping the extent of irrigation in the last century: time series of irrigated area per country. Frankfurt Hydrology Paper 08, Institute of Physical Geography, University of Frankfurt, Frankfurt am Main, Germany, 46 pp, DOI:10.13140/2.1.1743.1687.

Siebert, S., Döll, P. (2008). The Global Crop Water Model (GCWM): Documentation and first results for irrigated crops. Frankfurt Hydrology Paper 07, Institute of Physical Geography, University of Frankfurt, Frankfurt am Main, Germany, 42 pp, DOI:10.13140/2.1.1218.8809.

Portmann, F., Siebert, S., Bauer, C., Döll, P. (2008). Global data set of monthly growing areas of 26 irrigated crops. Frankfurt Hydrology Paper 06, Institute of Physical Geography, University of Frankfurt, Frankfurt am Main, Germany, 400 pp.

Siebert, S., Hoogeveen, J., Frenken, K. (2006). Irrigation in Africa, Europe and Latin America. Update of the Digital Global Map of Irrigation Areas to Version 4. Frankfurt Hydrology Paper 05, Institute of Physical Geography, Frankfurt University, Frankfurt am Main, Germany, 134 pp.

Feick, S., Siebert, S., Döll, P. (2005). A Digital Global Map of Artificially Drained Agricultural Areas. Frankfurt Hydrology Paper 04, Institute of Physical Geography, Frankfurt University, Frankfurt am Main, DOI:10.13140/2.1.3971.3923.

Siebert, S. (2005). Global-scale modeling of nitrogen balances at the soil surface. Frankfurt Hydrology Paper 02, Institute of Physical Geography, Frankfurt University, Frankfurt am Main, Germany, 35 pp, DOI:10.13140/2.1.3447.1044.

Siebert, S., Feick, S., Hoogeveen, J. (2005). A digital global map of irrigated areas - An update for Asia. Frankfurt Hydrology Paper 01, Institute of Physical Geography, Frankfurt University, Frankfurt am Main, Germany, 115 pp, DOI:10.13140/2.1.1087.8085.

Siebert, S., Döll, P. (2001). A digital global map of irrigated areas – An update for Latin America and Europe. Kassel World Water Series 4, Center for Environmental Systems Research, University of Kassel, Germany, 14 pp + Appendix, DOI:10.13140/2.1.4561.2162.

Döll, P., Siebert, S.(1999): A digital global map of irrigated areas. Kassel World Water Series 1, Center for Environmental Systems Research, University of Kassel, Germany, 23 pp + Appendix, DOI:10.13140/2.1.2726.2080.

Alcamo, J., Döll, P., Kaspar, F., Siebert, S. (1997). Global change and global scenarios of water use and availability: An application of WaterGAP 1.0, Report A9701, Center for Environmental Systems Research, University of Kassel, Germany, 47 pp + Appendix.


Journal article reviewing

  • Agricultural and Forest Meteorology
  • Agricultural Systems
  • Agricultural Water Management
  • Agriculture Ecosystems and Environment
  • Agronomy for Sustainable Development
  • Biosystems Engineering
  • Computers and Electronics in Agriculture
  • Current Opinion in Environmental Sustainability
  • Earth Science Informatics
  • Earth's Future
  • Ecological Economics
  • Environmental Earth Sciences
  • Environmental Research Letters
  • Environmental Science and Technology
  • European Journal of Agronomy
  • Field Crops Research
  • Geophysical Research Letters
  • Geoscientific Model Development
  • Global Change Biology
  • Global Ecology and Biogeography
  • Global Environmental Change
  • Global Food Security
  • Hydrology and Earth Systems Sciences
  • IEEE Geoscience and Remote Sensing Letters
  • IEEE Transactions on Geoscience and Remote Sensing
  • International Forestry Review
  • International Journal of Applied Earth Observation and Geoinformation
  • International Journal of Climatology
  • International Journal of Plant Production
  • Irrigation Science
  • Journal of Agriculture and Rural Development in the Tropics and Subtropics
  • Journal of Agronomy and Crop Science
  • Journal of Climatology
  • Journal of Geophysical Research
  • Journal of Hydrology
  • Journal of Land Use Science
  • Land Degradation and Development
  • Land Use Policy
  • Natural Hazards
  • Nature
  • Nature Climate Change
  • Nature Communications
  • Nature Geoscience
  • Nature Plants
  • Physics and Chemistry of the Earth
  • PLoS One
  • PNAS
  • Regional Environmental Change
  • Remote Sensing
  • Remote Sensing of Environment
  • Science
  • Science of the Total Environment
  • Scientific Data
  • Scientific Reports
  • Sustainability
  • The Journal of Agricultural Science
  • Water Resources Management
  • Water Resources Research
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