Article (Scientific journals)
Soil Organic Carbon and Nitrogen Feedbacks on Crop Yields under Climate Change
Basso, Bruno; Dumont, Benjamin; Maestrini, Bernardo et al.
2018In Agricultural and Environmental Letters, 3:180026, p. 5
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Keywords :
Soil Organic Carbon; Climate change; Crop Yield; carry-over effects; Nitrogen
Abstract :
[en] A critical omission from climate change impact studies on crop yield is the interaction between soil organic carbon (SOC), nitrogen (N) availability, and carbon dioxide (CO2). We used a multimodel ensemble to predict the effects of SOC and N under different scenarios of temperatures and CO2 concentrations on maize (Zea mays L.) and wheat (Triticum aestivum L.) yield in eight sites across the world. We found that including feedbacks from SOC and N losses due to increased temperatures would reduce yields by 13% in wheat and 19% in maize for a 3°C rise temperature with no adaptation practices. These losses correspond to an additional 4.5% (+3°C) when compared to crop yield reductions attributed to temperature increase alone. Future CO2 increase to 540 ppm would partially compensate losses by 80% for both maize and wheat at +3°C, and by 35% for wheat and 20% for maize at +6°C, relative to the baseline CO2 scenario.
Disciplines :
Agriculture & agronomy
Computer science
Author, co-author :
Basso, Bruno 
Dumont, Benjamin   ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions végétales et valorisation
Maestrini, Bernardo
Shcherbak, Iurii
Robertson, Greg P.
Porter, John Roy
Smith, Pete
Paustian, Keith
Grace, P. R.
Asseng, Senthold
Bassu, Simona
Biernath, Christian
Boote, Kenneth J.
Cammarano, Davide
Sanctis, Giacomo De
Durand, Jean-Louis
Ewert, Frank
Gayler, Sebastian
Hyndman, Dvid W.
Kent, Jeffry
Martre, Pierre
Nendel, Claas
Priesack, Eckart
Ripoche, Dominique
Ruane, Alex C.
Sharp, J.
Thorburn, Peter J.
Hatfield, Jerry L.
Jones, James W.
Rosenzweig, Cynthia
More authors (20 more) Less
 These authors have contributed equally to this work.
Language :
English
Title :
Soil Organic Carbon and Nitrogen Feedbacks on Crop Yields under Climate Change
Publication date :
16 August 2018
Journal title :
Agricultural and Environmental Letters
eISSN :
2471-9625
Publisher :
Crop Science Society of America, United States
Soil Science Society of America, United States
American Society of Agronomy, United States
Volume :
3:180026
Pages :
5 p. p.
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 April 2019

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