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Webber, H.; Ewert, F.; Kimball, B.A.; Siebert, S.; White, J.W.; Wall, G.W.; Ottman, M.J.; Trawally, D.N.A.; Gaiser, T. |
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Title  |
Simulating canopy temperature for modelling heat stress in cereals |
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Journal Article |
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Year |
2016 |
Publication |
Environmental Modelling & Software |
Abbreviated Journal |
Env. Model. Softw. |
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Volume |
77 |
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Pages |
143-155 |
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Keywords |
canopy temperature; heat stress; cereals; crop models; profile relationships; crop production; climate-change; spring wheat; field plots; growth; maize; water; yields; variability |
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Abstract |
Crop models must be improved to account for the effects of heat stress events on crop yields. To date, most approaches in crop models use air temperature to define heat stress intensity as the cumulative sum of thermal times (TT) above a high temperature threshold during a sensitive period for yield formation. However, observational evidence indicates that crop canopy temperature better explains yield reductions associated with high temperature events than air temperature does. This study presents a canopy level energy balance using Monin ObukhovSimilarity Theory (MOST) with simplifications about the canopy resistance that render it suitable for application in crop models and other models of the plant environment. The model is evaluated for a uniform irrigated wheat canopy in Arizona and rainfed maize in Burkina Faso. No single variable regression relationships for key explanatory variables were found that were consistent across sowing dates to explain the deviation of canopy temperature from air temperature. Finally, thermal times determined with simulated canopy temperatures were able to reproduce thermal times calculated with observed canopy temperature, whereas those determined with air temperatures were not. (C) 2015 Elsevier Ltd. All rights reserved. |
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English |
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1364-8152 |
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CropM, ft_macsur |
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MA @ admin @ |
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4730 |
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Author |
de Wit, A.; Rötter, R.P.; Palosuo, T.; Bergjord, A.K.; Virchenko, O.; Kleshenko, A. |
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Title |
Simulating the impact of winter conditions on the survival and yield potential of winter wheat |
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Conference Article |
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2016 |
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Berlin (Germany) |
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International Crop Modelling Symposium iCROPM 2016, 2016-05-15 to 2016-05-17, Berlin, Germany |
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MA @ admin @ |
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4905 |
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Author |
Mendes, L.B.; Herrero, M.; Havlík, P.; Mosnier, A.; Balieiro, S.F.; Moreira, R.E.M.; Obersteiner, M. |
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Title |
Simulation of enteric methane emissions from individual beef cattle in tropical pastures of improving quality: a case study with the model RUMINANT |
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Journal Article |
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2016 |
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Advances in Animal Biosciences |
Abbreviated Journal |
Advances in Animal Biosciences |
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7 |
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03 |
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233-234 |
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2040-4700 |
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LiveM, ft_macsur |
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MA @ admin @ |
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4873 |
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Haas, E.; Klatt, S.; Kiese, R.; Butterbach-Bahl, K.; Kraft, P.; Breuer, L. |
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Simulation of the the landscape scale nitrogen cycling and redistribution with the coupled hydrology biogeochemistry model CMF-LandscapeDNDC |
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2016 |
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Berlin (Germany) |
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poster |
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International Crop Modelling Symposium iCROPM 2016, 2016-05-15 to 2016-05-17, Berlin, Germany |
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no |
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MA @ admin @ |
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4904 |
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Author |
Olesen, J.E. |
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Title |
Socio-economic impacts – agricultural systems |
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Book Chapter |
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2016 |
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397-407 |
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Quante, M.; Colijn, F. |
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North Sea Region climate change assessment |
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Regional Climate Studies |
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1862-0248 (series) |
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978-3-319-39745-0 (eBook), 978-3-319-39745-0 (hardcover) |
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4828 |
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