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Rainfall amplified sea-level control on silicate weathering in the Indo-Pacific Convergence Zone during Quaternary glacials

文献类型：期刊论文

作者Yang, Yifei1,2,3; Xu, Zhaokai1,3; Zhao, Debo3; Wan, Shiming1,3
刊名COMMUNICATIONS EARTH & ENVIRONMENT
出版日期2026-01-23
卷号7期号:1页码:8
DOI10.1038/s43247-026-03219-2
通讯作者Xu, Zhaokai(zhaokaixu@qdio.ac.cn) ; Zhao, Debo(zhaodebo@qdio.ac.cn)
英文摘要The Indo-Pacific Convergence Zone is a key carbon sink via silicate weathering, yet its glacial-interglacial carbon dioxide consumption remains unclear. Here we reconstruct silicate weathering fluxes over the past 700,000 years by combining the global geochemical numerical model GEOCLIM with machine learning algorithms to constrain silicate weathering history in the Indo-Pacific Convergence Zone. Our results show that during glacial periods, weathering fluxes peaked at approximately 1.86 & times; 1012 moles per year, drawing down about 9.3 ppmv of carbon dioxide. Exposure of continental shelves during low sea levels raised glacial weathering by 33%, but high-frequency positive rainfall anomalies amplified this increase by 54-130% (approximately 9.2-13.7 ppmv carbon dioxide). This underscores how sea-level change and hydrology control tropical shelf weathering. Our study provides critical insights into past climatic transitions, emphasizing the Indo-Pacific Convergence Zone's role in regulating the global carbon cycle and offering constraints for future climate projections.
WOS关键词ATMOSPHERIC CO2 ; ASIAN MONSOON ; CLIMATE ; TEMPERATURE ; CHEMISTRY ; RECORDS ; SHELF ; BASIN
资助项目National Natural Science Foundation of China (National Science Foundation of China)[42125602, 42576077, 42576049]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001698660100001
出版者SPRINGERNATURE
源URL[http://ir.qdio.ac.cn/handle/337002/204814]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Xu, Zhaokai; Zhao, Debo
作者单位1.Qingdao Marine Sci & Technol Ctr, Lab Marine Geol, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Lab Marine Geol & Environm, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Yifei,Xu, Zhaokai,Zhao, Debo,et al. Rainfall amplified sea-level control on silicate weathering in the Indo-Pacific Convergence Zone during Quaternary glacials[J]. COMMUNICATIONS EARTH & ENVIRONMENT,2026,7(1):8.
APA Yang, Yifei,Xu, Zhaokai,Zhao, Debo,&Wan, Shiming.(2026).Rainfall amplified sea-level control on silicate weathering in the Indo-Pacific Convergence Zone during Quaternary glacials.COMMUNICATIONS EARTH & ENVIRONMENT,7(1),8.
MLA Yang, Yifei,et al."Rainfall amplified sea-level control on silicate weathering in the Indo-Pacific Convergence Zone during Quaternary glacials".COMMUNICATIONS EARTH & ENVIRONMENT 7.1(2026):8.

入库方式： OAI收割

来源：海洋研究所

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