气候变化领域集成服务门户(CCPortal): Silicon in paddy fields: Benefits for rice production and the potential of rice phytoliths for biogeochemical carbon sequestration

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DOI	10.1016/j.scitotenv.2024.172497
	Silicon in paddy fields: Benefits for rice production and the potential of rice phytoliths for biogeochemical carbon sequestration
	Yang, Xiaomin; Ni, Yilun; Li, Zimin; Yue, Kai; Wang, Jingxu; Li, Zhijie; Yang, Xing; Song, Zhaoliang
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	929
卷号	929
英文摘要	Silicon (Si) biogeochemical cycling is beneficial for crop productivity and carbon (C) sequestration in agricultural ecosystem, thus offering a nonnegligible role in alleviating global warming and food crisis. Compared with other crops, rice plants have a greater quantity of phytolith production, because they are able to take up a lot of Si. However, it remains unclear on Si supply capacity of paddy soils across the world, general rice yield-increasing effect after Si fertilizer addition, and factors affecting phytolith production and potential of phytolith C sequestration in paddy fields. This study used a meta -analysis of >3500 data from 87 studies to investigate Si supply capacity of global paddy soils and elaborate the benefits of Si regarding rice productivity and phytolith C sequestration in paddy fields. Analytical results showed that the Si supply capacity of paddy soils was insufficient in the major rice producing countries/regions. Dealing with this predicament, Si fertilization was an effective strategy to supply plant -available Si to improve rice productivity. Our meta -analysis results further revealed that Si fertilization led to the average increasing rate of 36 % and 39 % in rice yield and biomass, which could reach up to 52 % and 46 % with the increasing doses of Si fertilizer, respectively. Especially, this strategy also improved the potential of phytolith C sequestration through the increased phytolith content and rice biomass, despite that this potential might have a decline in old paddy soils ( >= 7000 year) compared to in young paddy soils ( <= 1000 year) due to the slow migration and dissolution of phytoliths at millennial scale. Our findings thus indicate that a deep investigation on the benefits of Si in agroecosystem will further improve our understanding on regulating crop production and the potential of biogeochemical C sequestration within phytoliths in global cropland.
英文关键词	Plant-available silicon; Paddy soils; Rice productivity; Phytolith-occluded carbon; Climate change; Carbon sequestration
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001236239500001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302814
作者单位	Guizhou University; Guizhou University; Chinese Academy of Sciences; Institute of Earth Environment, CAS; Fujian Normal University; Henan Academy of Sciences; Clemson University; Hainan University; Tianjin University; Chinese Academy of Sciences; Institute of Earth Environment, CAS
推荐引用方式 GB/T 7714	Yang, Xiaomin,Ni, Yilun,Li, Zimin,et al. Silicon in paddy fields: Benefits for rice production and the potential of rice phytoliths for biogeochemical carbon sequestration[J],2024,929.
APA	Yang, Xiaomin.,Ni, Yilun.,Li, Zimin.,Yue, Kai.,Wang, Jingxu.,...&Song, Zhaoliang.(2024).Silicon in paddy fields: Benefits for rice production and the potential of rice phytoliths for biogeochemical carbon sequestration.SCIENCE OF THE TOTAL ENVIRONMENT,929.
MLA	Yang, Xiaomin,et al."Silicon in paddy fields: Benefits for rice production and the potential of rice phytoliths for biogeochemical carbon sequestration".SCIENCE OF THE TOTAL ENVIRONMENT 929(2024).