文献类型：期刊文献

中文题名：Distribution and Sources of Particulate Organic Matter in the Northern South China Sea: Implications of Human Activity

英文题名：Distribution and Sources of Particulate Organic Matter in the Northern South China Sea: Implications of Human Activity

作者：Huang Chao[1,2];Lao Qibin[3];Chen Fajin[1,2];Zhang Shuwen[4];Chen Chunqing[1,2];Bian Peiwang[1,2];Zhu Qingmei[1,2]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Key Lab Climate Resources & Environm Continental, Dept Educ Guangdong Prov, Zhanjiang 524088, Peoples R China;[3]State Ocean Adm, Marine Environm Monitoring Ctr Beihai, Beihai 266031, Peoples R China;[4]Shantou Univ, Inst Marine Sci, Shantou 515063, Peoples R China

年份：2021

卷号：20

期号：5

起止页码：1136

中文期刊名：Journal of Ocean University of China

外文期刊名：JOURNAL OF OCEAN UNIVERSITY OF CHINA

收录：SCI-EXPANDED(收录号：WOS:000682662400011)、CSTPCD、、CSCD2021_2022、Scopus(收录号：2-s2.0-85112664254)、WOS、CSCD

基金：This work was supported by the National Natural Science Foundation of China (Nos. U1901213, 41466010, 41676008), the China National Key Research and Development Plan Project (No. 2016YFC1401403), the Guangdong Natural Science Foundation of China (Nos. 2016 A030312004; 2020A1515010500), the Project of Enhancing School with Innovation of Guangdong Ocean University (Nos. GDOU2016050260, 230419097), and the Marine Science Research Team Project of Guangdong Ocean University (No. 002026002004). We would like to thank Professors Jie Xu and Zhen Shi for their support in collecting water samples.

语种：英文

中文关键词：particulate organic matter;stable isotope;C/N ratio;isotope mixing model;South China Sea

外文关键词：particulate organic matter; stable isotope; C; N ratio; isotope mixing model; South China Sea

中文摘要：In order to understand origin and fate of particulate organic matter,the isotopic composition(δ^(13)C andδ^(15)N),total or-ganic carbon content,total nitrogen content,and C/N ratios were measured for suspended particulate organic matter(POM)collected from the northern South China Sea(NSCS)during summer.Our study revealed thatδ^(13)C generally decreased from land to sea,and elevatedδ^(13)C occurred at the nearshore stations,suggesting that POC was mainly contributed from the eutrophic level and microbial activity.Moreover,the distribution ofδ^(15)N values were complicated,and heterotrophic modification was responsible for higherδ^(15)N in the nearshore stations.These distribution patterns ofδ^(13)C andδ^(15)N in the nearshore stations may be associated with the intensifi-cation of human activity in the coast.Based on the Stable Isotope Analysis in R model,65%of POM was contributed by marine or-ganic matter in the NSCS,20%by terrestrial inputs,and 15%by freshwater algae.

外文摘要：In order to understand origin and fate of particulate organic matter, the isotopic composition (delta C-13 and delta N-15), total organic carbon content, total nitrogen content, and C/N ratios were measured for suspended particulate organic matter (POM) collected from the northern South China Sea (NSCS) during summer. Our study revealed that delta C-13 generally decreased from land to sea, and elevated delta C-13 occurred at the nearshore stations, suggesting that POC was mainly contributed from the eutrophic level and microbial activity. Moreover, the distribution of delta N-15 values were complicated, and heterotrophic modification was responsible for higher delta N-15 in the nearshore stations. These distribution patterns of delta C-13 and delta N-15 in the nearshore stations may be associated with the intensification of human activity in the coast. Based on the Stable Isotope Analysis in R model, 65% of POM was contributed by marine organic matter in the NSCS, 20% by terrestrial inputs, and 15% by freshwater algae.