文献类型：期刊文献

英文题名：Spatiotemporal variation, speciation, and transport flux of TDP in Leizhou Peninsula coastal waters, South China Sea

作者：Zhang, Peng[1];Dai, Peidong[1,2];Zhang, Jibiao[1];Li, Jianxu[1];Zhao, Hui[1];Song, Zhiguang[1]

机构：[1]Guangdong Ocean Univ, Coll Chem & Environm Sci, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangzhou Chinese Acad Sci, Test Tech Serv Co Ltd, Guangzhou 510000, Guangdong, Peoples R China

年份：2021

卷号：167

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000655695800004)、、EI(收录号：20211310134084)、Scopus(收录号：2-s2.0-85103011839)、WOS

基金：The authors are grateful for the anonymous reviewers' carefulreview and constructive suggestions to improve the manuscript. We gratefully acknowledge supported by the Research and Development Projects in Key Areas of Guangdong Province (2020B1111020004) ; Guangdong Basic and Applied Basic Research Foundation (2020A1515110483) ; Guangdong Ocean University Fund Project (R18021) ; Science and Technology Special Project of Zhanjiang City (2019B01081) ; Firstclass Special Fund (231419018) ; Innovation Strong School Project (230420007) of Guangdong Ocean University and Marine Organic Geochemistry and ClimateEnvironment Change (R17001) .

语种：英文

外文关键词：TDP; Spatiotemporal variation; Speciation; Transport flux; Leizhou Peninsula coastal waters

外文摘要：Phosphorus (P) plays key role in phytoplankton primary production in coastal water. In this study, seawater samples collected within China's Leizhou Peninsula coastal waters from October 2017 to July 2018 were examined to determine the seasonal variation, speciation, and transport flux of total dissolved phosphorus (TDP) linked to hydrographic features. TDP concentration and speciation had significant seasonal variations (P < 0.01), and the annual mean TDP concentration was 0.42 +/- 0.25 mu mol.L- 1. High concentrations of TDP occurred in coastal waters adjacent to Zhanjiang Bay and Jianjiang River estuary, whereas low TDP concentrations were found across large offshore areas. Dissolved inorganic and organic P were the main TDP bulk species in different seasons, comprising up to 55.5 +/- 7.9% and 46.5 +/- 22.6%, respectively. The Beibu Gulf was annually subjected to 3.5 x 109 mol flux of TDP through the Qiongzhou Strait. Coastal currents, river plumes, and human activities were responsible for the dynamic variations in P species.