文献类型：期刊文献

英文题名：Tracer study of CDOM for nitrogen and phosphorus pollution in the offshore Leizhou Peninsula, China

作者：Wei, Shiyun[1];Fu, Dongyang[1,2];Wang, Difeng[1,3];Yu, Guo[1,2];Luo, Yafei[1,2];Xu, Huabing[1,2]

机构：[1]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Prov Engn & Technol Res Ctr Marine, Zhanjiang 524088, Peoples R China;[3]Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Peoples R China

年份：2023

卷号：148

外文期刊名：ECOLOGICAL INDICATORS

收录：SCI-EXPANDED(收录号：WOS:000948063400001)、、EI(收录号：20230913633179)、Scopus(收录号：2-s2.0-85148543571)、WOS

基金：This work was supported by the Key Projects of the Guangdong Education Department (in China) (No. 2019KZDXM019), the Fund of Southern Marine Science and Engineering Guangdong Laboratory (in China) (No. ZJW-2019-08), the High-Level Marine Discipline Team Project of Guangdong Ocean University (in China) (No. 002026002009), the Guangdong Graduate Academic Forum Project (in China) (No.230420003), the "First Class" Discipline Construction Platform Project in 2019 of Guangdong Ocean University (in China) (No. 231419026), the Innovation Projects of Colleges and Universities in Guangdong Province (in China) (2021KQNCX028), and the National Natural Science Foundation of China (Grant No. 42206187).

语种：英文

外文关键词：CDOM; Leizhou Peninsula; DIN; DIP; Numerical simulation; Pollution tracing

外文摘要：Colorful dissolved organic matter (CDOM) is an optically important active substance in marine habitats that feature significant biochemical conservatism. Additionally, CDOM is an important tracer and indicator of pollution status in marine water masses. In this study, we use sampling data collected in September 2020 and May 2021 from the marine areas around the Leizhou Peninsula. This information is combined with the Delft 3D numerical simulation analysis to carry out a study on the relationship between the a(g) (355) in the marine areas and to determine the regional marine pollution levels. The results show that (1) the nearshore areas of the Leizhou Peninsula in spring and autumn are mainly lightly polluted. Compared with the same period in history, the pollution level has significantly decreased, and the a(g) (355), DIN, and DIP concentrations show a trend of high near the shore and low far from shore. The peak concentrations are mainly in the Zhanjiang Bay, Qiongzhou Strait, Wailuo Port, Liusha Port and Guangxi Tieshan Port. (2) a(g) (355) can be used as an indicator to characterize the degree of water pollution in the nearshore waters of the Leizhou Peninsula. In spring, the ag (355) interval of [0.115, 0.200] m(-1), [0.201, 0.245] m(-1) and [0.246, 0.484] m(-1) can be considered clean, lightly polluted, and moderately polluted water, respectively. In autumn, the a(g) (355) interval of [0.180, 0.275] m(-1), [0.276, 0.478] m(-1), [0.479, 0.642] m(-1), [0.643, 0.921] m(-1) can be considered clean, lightly polluted, moderately polluted and heavily polluted water, respectively. (3) The response models between the ag (355) and pollutant dispersion trends were constructed in the Zhanjiang Bay and Tieshan Port. The RMSEs of the ag (355) validation points in the models were lower than 0.12 mg/L, and the MAPEs were lower than 30 %, the pollution traceability of CDOM is verified.