文献类型：期刊文献

英文题名：Roles of temperature and ventilation in oxygen consumption: A chemical kinetics view from the van't Hoff-based formulation

作者：Huang, Peng[1,4];Cai, Mingang[1,2,3];Chen, Fajin[1,4];Liu, Zhiqing[1];Ke, Hongwei[2];Wang, Weimin[5,6];Zheng, Xuehong[2];Wang, Chunhui[2]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361102, Peoples R China;[3]Xiamen Ocean Vocat Coll, Xiamen 361100, Peoples R China;[4]Guangdong Ocean Univ, Dept Educ Guangdong Prov, Key Lab Climate Resources & Environm Continental S, Zhanjiang 524088, Peoples R China;[5]Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300350, Peoples R China;[6]Tianjin Univ, Zhejiang Inst, Ningbo 315000, Peoples R China

年份：2024

卷号：193

外文期刊名：MARINE ENVIRONMENTAL RESEARCH

收录：SCI-EXPANDED(收录号：WOS:001126041300001)、、EI(收录号：20234815125679)、Scopus(收录号：2-s2.0-85178001139)、WOS

基金：This work was supported by the National Natural Science Foundation of China (41976216, U2005207, 41906041, 41776088) , and the Program for Scientific Research Start-Up funds of Guangdong Ocean University. We gratefully thank Dr. Peter Brewer and Dr. Edward T. Peltzer for providing useful information on the application of Arrhenius/Eyring equations.

语种：英文

外文关键词：Transient tracer; Oxygen consumption rate; Reaction constant; Kinetics; Temperature

外文摘要：In this study, we successfully estimated the apparent activation energy of a microbially driven oxygen-consuming reaction (microbial-driven) based on tracer data. The concept of the apparent chemical reaction rate constant was employed to estimate various thermodynamic parameters associated with the oxygen consumption rate in conjunction with Arrhenius/Eyring equations. Normal Ea values of 80-90 kJ mol- 1 were found in the upper layers of the South China Sea and Sulu Sea, while higher Ea values (300-1000 kJ mol- 1) were observed in the rapidly ventilated Mediterranean Sea, the Sea of Japan, and the Bering Sea with lower temperatures. We classified the characteristics of typical sea basins into four categories. The temperature-dependent oxygen consumption rate relationship in each marine region was systematically calculated to derive the respective thermodynamic characteristic values. This allowed us to parameterize the rate-temperature relationship into thermodynamic quantities, enabling more effective integration of distinct basin characteristics within different sea areas into the marine biochemical model. Parameterization facilitates relatively accurate prediction of changes such as temperature, oxygen consumption rate.