Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China
Accurate prediction of future rice yield needs the precise estimations of rice yield response to climate change factors, of which the most important one is the increasing carbon dioxide (CO2) concentrations. Estimates of CO2 fertilization effect (CFE) on rice, however, still had large uncertainties....
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-12-01
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| Series: | Crop Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214514124001429 |
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| author | Zihao Wang Yu Zhang Xueni Wang Yanfeng Ding Songhan Wang |
| author_facet | Zihao Wang Yu Zhang Xueni Wang Yanfeng Ding Songhan Wang |
| author_sort | Zihao Wang |
| collection | DOAJ |
| description | Accurate prediction of future rice yield needs the precise estimations of rice yield response to climate change factors, of which the most important one is the increasing carbon dioxide (CO2) concentrations. Estimates of CO2 fertilization effect (CFE) on rice, however, still had large uncertainties. Therefore, using the rice planting areas in East China as the study area, we firstly compared the rice yields and CFE predicted by four state-of-the-art crop models, and found that the CFE predicted by these models had significant differences. We then quantified the CFE on rice yield using the field-controlled experiment conducted at Danyang site at Jiangsu province. Using CFE measurements from a field experiment as benchmark, we have developed an experiment–model integration approach aiming to reduce this variation. This study thus highlights the large CFE uncertainties of current crop models and provides us with a method to reduce this uncertainty, which is beneficial for the accurate prediction of future global rice yield in the context of climate change. |
| format | Article |
| id | doaj-art-4e3dbc8effc1493a8d51767616cb4f1a |
| institution | Kabale University |
| issn | 2214-5141 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Crop Journal |
| spelling | doaj-art-4e3dbc8effc1493a8d51767616cb4f1a2024-12-26T08:53:15ZengKeAi Communications Co., Ltd.Crop Journal2214-51412024-12-0112618121816Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East ChinaZihao Wang0Yu Zhang1Xueni Wang2Yanfeng Ding3Songhan Wang4Jiangsu Collaborative Innovation Center for Modern Crop Production, Key Laboratory of Crop Physiology and Ecology in Southern China, Nanjing Agricultural University, Nanjing 210095, Jiangsu, ChinaJiangsu Collaborative Innovation Center for Modern Crop Production, Key Laboratory of Crop Physiology and Ecology in Southern China, Nanjing Agricultural University, Nanjing 210095, Jiangsu, ChinaJiangsu Collaborative Innovation Center for Modern Crop Production, Key Laboratory of Crop Physiology and Ecology in Southern China, Nanjing Agricultural University, Nanjing 210095, Jiangsu, ChinaJiangsu Collaborative Innovation Center for Modern Crop Production, Key Laboratory of Crop Physiology and Ecology in Southern China, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China; Sanya Research Institute of Nanjing Agriculture University, Sanya 572024, Hainan, ChinaJiangsu Collaborative Innovation Center for Modern Crop Production, Key Laboratory of Crop Physiology and Ecology in Southern China, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China; Sanya Research Institute of Nanjing Agriculture University, Sanya 572024, Hainan, China; Corresponding author.Accurate prediction of future rice yield needs the precise estimations of rice yield response to climate change factors, of which the most important one is the increasing carbon dioxide (CO2) concentrations. Estimates of CO2 fertilization effect (CFE) on rice, however, still had large uncertainties. Therefore, using the rice planting areas in East China as the study area, we firstly compared the rice yields and CFE predicted by four state-of-the-art crop models, and found that the CFE predicted by these models had significant differences. We then quantified the CFE on rice yield using the field-controlled experiment conducted at Danyang site at Jiangsu province. Using CFE measurements from a field experiment as benchmark, we have developed an experiment–model integration approach aiming to reduce this variation. This study thus highlights the large CFE uncertainties of current crop models and provides us with a method to reduce this uncertainty, which is beneficial for the accurate prediction of future global rice yield in the context of climate change.http://www.sciencedirect.com/science/article/pii/S2214514124001429Rice yieldElevated CO2Experiment-model integrationField experimentCrop models |
| spellingShingle | Zihao Wang Yu Zhang Xueni Wang Yanfeng Ding Songhan Wang Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China Crop Journal Rice yield Elevated CO2 Experiment-model integration Field experiment Crop models |
| title | Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China |
| title_full | Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China |
| title_fullStr | Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China |
| title_full_unstemmed | Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China |
| title_short | Reduction of uncertainties in rice yield response to elevated CO2 by experiment-model integration: A case study in East China |
| title_sort | reduction of uncertainties in rice yield response to elevated co2 by experiment model integration a case study in east china |
| topic | Rice yield Elevated CO2 Experiment-model integration Field experiment Crop models |
| url | http://www.sciencedirect.com/science/article/pii/S2214514124001429 |
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