Response of rice yield and yield components to elevated [CO2]: A synthesis of updated data from FACE experiments

doi:10.1016/j.eja.2019.125961

	Response of rice yield and yield components to elevated [CO2]: A synthesis of updated data from FACE experiments
	Lv, Chunhua 1; Huang, Yao1 ; Sun, Wenjuan ; Yu, Lingfei ; Zhu, Jianguo 2
	2020
发表期刊	EUROPEAN JOURNAL OF AGRONOMY
ISSN	1161-0301
卷号	112
摘要	Rice is the most widely consumed staple food for more than half of the world's population. Rising atmospheric carbon dioxide concentration [CO2] is expected to improve crop yields in the future. Rice responds to elevated [CO2] through photosynthesis improving yield components. This response depends on rice types, climate and fertilizers. However, the determinants of rice yield and the contribution of yield components at elevated [CO2] are far from certain. We extracted data from articles published before the end of 2018. These articles reported the responses of rice yield and yield components to elevated [CO2] at FACE conditions across four locations in China and Japan. Using CART (Classification and regression tree, a nonparametric modeling approach to recursively partition predictor variables) and regression models, we identified the principal determinants and the contribution of yield components to yield at elevated [CO2]. Elevated [CO2] (similar to 200 mu mol mol(-)(1) above ambient) increased rice yields by 13.5% (n = 93), 22,6% (n = 10) and 32.8% (n = 17) for japonica, indica and hybrid cultivars. The type of rice cultivars dominantly determined the response of spikelets per panicle, while temperature is of greatest importance in determining the response of filled spikelets percentage to elevated [CO2]. Optimal nitrogen rates at elevated [CO2] are site-specific, depending on local soil fertility and temperature. The contribution of post-heading elevated [CO2] to yield is higher for indica and hybrid (24%) than for japonica cultivars (13%). Lower benefit of japonica cultivars from post-heading elevated [CO2] is likely attributed to an intensive photosynthetic acclimation. Our findings highlight the importance of pre- and post-heading CO2 fertilization effect and nitrogen management in yield benefits from elevated [CO2], and the necessity for crop modelers to incorporate the knowledge from FACE studies into models so that models become more accurate, rigorous and robust.
关键词	Cultivar type Free-air CO2 enrichment Nitrogen management Pre- and post-heading Temperature Rice yield components
学科领域	Agronomy
DOI	10.1016/j.eja.2019.125961
收录类别	SCI
语种	英语
WOS关键词	ENRICHMENT FACE ; ORYZA-SATIVA ; PHOTOSYNTHETIC ACCLIMATION ; CARBON-DIOXIDE ; LEAF PHOTOSYNTHESIS ; TROPICAL RICE ; RISING CO2 ; TEMPERATURE ; GROWTH ; CLIMATE
WOS研究方向	Agriculture
WOS记录号	WOS:000498749800007
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1873-7331
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41530533]
作者邮箱	huangyao@ibcas.ac.cn
引用统计	被引频次：52[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21965
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Lv, Chunhua,Huang, Yao,Sun, Wenjuan,et al. Response of rice yield and yield components to elevated [CO2]: A synthesis of updated data from FACE experiments[J]. EUROPEAN JOURNAL OF AGRONOMY,2020,112.
APA	Lv, Chunhua,Huang, Yao,Sun, Wenjuan,Yu, Lingfei,&Zhu, Jianguo.(2020).Response of rice yield and yield components to elevated [CO2]: A synthesis of updated data from FACE experiments.EUROPEAN JOURNAL OF AGRONOMY,112.
MLA	Lv, Chunhua,et al."Response of rice yield and yield components to elevated [CO2]: A synthesis of updated data from FACE experiments".EUROPEAN JOURNAL OF AGRONOMY 112(2020).

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