文献类型：期刊文献

英文题名：Response of particulate organic matter dynamics to the ocean front induced by typhoon Talim in Zhanjiang Bay

作者：Chen, Chunqing[1,2];Lao, Qibin[1,2];Yao, Haoyu[1];Lu, Xuan[3];Zhu, Qingmei[1,4,5];Cai, Shangjun[1,2];Chen, Fajin[1,2,4,5]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Sch Chem & Environm, Zhanjiang 524088, Peoples R China;[3]Jimei Univ, Polar & Marine Res Inst, Coll Harbor & Coastal Engn, Xiamen 361021, Peoples R China;[4]Guangdong Ocean Univ, Key Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China;[5]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Continental S, Dept Educ Guangdong Prov, Zhanjiang 524088, Peoples R China

年份：2024

卷号：202

外文期刊名：MARINE ENVIRONMENTAL RESEARCH

收录：SCI-EXPANDED(收录号：WOS:001334632700001)、、EI(收录号：20244217196937)、Scopus(收录号：2-s2.0-85206202321)、WOS

基金：This study was supported by the National Natural Science Founda-tion of China (42276047) , College Student Innovation Training Program of Guangdong Ocean University (202310566007) , and Innovation and Entrepreneurship Project of Shantou (2021112176541391) .

语种：英文

外文关键词：Typhoons; Decomposition of organic matter; Stable nitrogen and carbon isotopes; Ocean fronts

外文摘要：Typhoons greatly affect ocean hydrodynamics, thereby altering ocean productivity and biogeochemistry. This study used stable isotopes and geochemical indicators of particulate organic matter (POM) to investigate the impact of Typhoon Talim (2023) on marine productivity and POM dynamics in Zhanjiang Bay. During the typhoon, an ocean front formed in the upper bay, resulting in a nearly twofold increased POM and enhanced decomposition of resuspended POM, due to the strengthened vertical mixing. Despite of strong decomposition, the supplementation of terrestrial nutrient inputs maintained minimal changes in chlorophyll in the upper bay. By contrast, in the lower bay, chlorophyll and POM decreased significantly, primarily attributed to decomposition of fresh POM and nitrogen limitation resulting from high-salinity seawater intrusion induced by the typhoon. This study suggests that after typhoons, in the area where the ocean front forms, the decomposition degrades a large amount of resuspended POM, which is not conducive to the burial of organic carbon.