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Using triple oxygen isotopes and oxygen-argon ratio to quantify ecosystem production in the mixed layer of northern South China Sea slope region

文献类型：期刊论文

作者Zhu, Zhuoyi4,5; Wang, Jun3; Zhang, Guiling1,2; Liu, Sumei1,2; Zheng, Shan6; Sun, Xiaoxia6; Xu, Dongfeng3; Zhou, Meng5
刊名ACTA OCEANOLOGICA SINICA
出版日期2021-06-01
页码15
ISSN号0253-505X
关键词gross primary production net community production triple oxygen isotopes O-2 Ar air-sea gas flux piston velocity
DOI10.1007/s13131-021-1846-7
通讯作者Zhu, Zhuoyi(zhu.zhuoyi@sjtu.edu.cn)
英文摘要Quantifying the gross and net production is an essential component of carbon cycling and marine ecosystem studies. Triple oxygen isotope measurements and the O-2/Ar ratio are powerful indices in quantifying the gross primary production and net community production of the mixed layer zone, respectively. Although there is a substantial advantage in refining the gas exchange term and water column vertical mixing calibration, application of mixed layer depth history to the gas exchange term and its contribution to reducing indices error are unclear. Therefore, two cruises were conducted in the slope regions of the northern South China Sea in October 2014 (autumn) and June 2015 (spring). Discrete water samples at Station L07 in the upper 150 m depth were collected for the determination of delta O-17, delta O-18, and the O-2/Ar ratio of dissolved gases. Gross oxygen production (GOP) was estimated using the triple oxygen isotopes of the dissolved O-2, and net oxygen production (NOP) was calculated using O-2/Ar ratio and O-2 concentration. The vertical mixing effect in NOP was calibrated via a N2O based approach. GOP for autumn and spring was (169 +/- 23) mmol/(m(2)center dot d) (by O-2) and (189 +/- 26) mmol/(m(2)center dot d) (by O-2), respectively. While NOP was 1.5 mmol/(m(2)center dot d) (by O-2) in autumn and 8.2 mmol/(m(2)center dot d) (by O-2) in spring. Application of mixed layer depth history in the gas flux parametrization reduced up to 9.5% error in the GOP and NOP estimations. A comparison with an independent O-2 budget calculation in the diel observation indicated a 26% overestimation in the current GOP, likely due to the vertical mixing effect. Both GOP and NOP in June were higher than those in October. Potential explanations for this include the occurrence of an eddy process in June, which may have exerted a submesoscale upwelling at the sampling station, and also the markedly higher terrestrial impact in June.
资助项目National Key Research and Development Programs of China of the Ministry of Science and Technology[2020YFA0608301] ; National Key Research and Development Programs of China of the Ministry of Science and Technology[2014CB441503] ; National Natural Science Foundation of China[41976042] ; National Natural Science Foundation of China[41776122] ; Fundamental Research Funds for the Central Universities ; Taishan Scholars Program of Shandong Province, China
WOS研究方向Oceanography
语种英语
出版者SPRINGER
WOS记录号WOS:000656778100001
源URL[http://ir.qdio.ac.cn/handle/337002/170977]  
专题海洋研究所_胶州湾海洋生态系统国家野外研究站
通讯作者Zhu, Zhuoyi
作者单位1.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
2.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
3.Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Peoples R China
4.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R China
5.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200030, Peoples R China
6.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Zhuoyi,Wang, Jun,Zhang, Guiling,et al. Using triple oxygen isotopes and oxygen-argon ratio to quantify ecosystem production in the mixed layer of northern South China Sea slope region[J]. ACTA OCEANOLOGICA SINICA,2021:15.
APA Zhu, Zhuoyi.,Wang, Jun.,Zhang, Guiling.,Liu, Sumei.,Zheng, Shan.,...&Zhou, Meng.(2021).Using triple oxygen isotopes and oxygen-argon ratio to quantify ecosystem production in the mixed layer of northern South China Sea slope region.ACTA OCEANOLOGICA SINICA,15.
MLA Zhu, Zhuoyi,et al."Using triple oxygen isotopes and oxygen-argon ratio to quantify ecosystem production in the mixed layer of northern South China Sea slope region".ACTA OCEANOLOGICA SINICA (2021):15.

入库方式： OAI收割

来源：海洋研究所

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