Large potential for crop production adaptation depends on available future varieties

Large potential for crop production adaptation depends on available future varieties

© 2021 The Authors. Global Change Biology published by John Wiley & Sons Ltd.

Détails bibliographiques
Publié dans:Global change biology. - 1999. - 27(2021), 16 vom: 26. Aug., Seite 3870-3882
Auteur principal: Zabel, Florian (Auteur)
Autres auteurs: Müller, Christoph, Elliott, Joshua, Minoli, Sara, Jägermeyr, Jonas, Schneider, Julia M, Franke, James A, Moyer, Elisabeth, Dury, Marie, Francois, Louis, Folberth, Christian, Liu, Wenfeng, Pugh, Thomas A M, Olin, Stefan, Rabin, Sam S, Mauser, Wolfram, Hank, Tobias, Ruane, Alex C, Asseng, Senthold
Format: Article en ligne
Langue:English
Publié: 2021
Accès à la collection:Global change biology
Sujets:Journal Article AgMIP CMIP6 GGCMI breeding climate change climate scenarios crop traits cultivar adaptation food security variety adaptation
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520 |a Climate change affects global agricultural production and threatens food security. Faster phenological development of crops due to climate warming is one of the main drivers for potential future yield reductions. To counter the effect of faster maturity, adapted varieties would require more heat units to regain the previous growing period length. In this study, we investigate the effects of variety adaptation on global caloric production under four different future climate change scenarios for maize, rice, soybean, and wheat. Thereby, we empirically identify areas that could require new varieties and areas where variety adaptation could be achieved by shifting existing varieties into new regions. The study uses an ensemble of seven global gridded crop models and five CMIP6 climate models. We found that 39% (SSP5-8.5) of global cropland could require new crop varieties to avoid yield loss from climate change by the end of the century. At low levels of warming (SSP1-2.6), 85% of currently cultivated land can draw from existing varieties to shift within an agro-ecological zone for adaptation. The assumptions on available varieties for adaptation have major impacts on the effectiveness of variety adaptation, which could more than half in SSP5-8.5. The results highlight that region-specific breeding efforts are required to allow for a successful adaptation to climate change 
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650 4 |a AgMIP 
650 4 |a CMIP6 
650 4 |a GGCMI 
650 4 |a breeding 
650 4 |a climate change 
650 4 |a climate scenarios 
650 4 |a crop traits 
650 4 |a cultivar adaptation 
650 4 |a food security 
650 4 |a variety adaptation 
700 1 |a Müller, Christoph  |e verfasserin  |4 aut 
700 1 |a Elliott, Joshua  |e verfasserin  |4 aut 
700 1 |a Minoli, Sara  |e verfasserin  |4 aut 
700 1 |a Jägermeyr, Jonas  |e verfasserin  |4 aut 
700 1 |a Schneider, Julia M  |e verfasserin  |4 aut 
700 1 |a Franke, James A  |e verfasserin  |4 aut 
700 1 |a Moyer, Elisabeth  |e verfasserin  |4 aut 
700 1 |a Dury, Marie  |e verfasserin  |4 aut 
700 1 |a Francois, Louis  |e verfasserin  |4 aut 
700 1 |a Folberth, Christian  |e verfasserin  |4 aut 
700 1 |a Liu, Wenfeng  |e verfasserin  |4 aut 
700 1 |a Pugh, Thomas A M  |e verfasserin  |4 aut 
700 1 |a Olin, Stefan  |e verfasserin  |4 aut 
700 1 |a Rabin, Sam S  |e verfasserin  |4 aut 
700 1 |a Mauser, Wolfram  |e verfasserin  |4 aut 
700 1 |a Hank, Tobias  |e verfasserin  |4 aut 
700 1 |a Ruane, Alex C  |e verfasserin  |4 aut 
700 1 |a Asseng, Senthold  |e verfasserin  |4 aut 
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773 1 8 |g volume:27  |g year:2021  |g number:16  |g day:26  |g month:08  |g pages:3870-3882 
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