文献类型：期刊文献

英文题名：Compositions and spatio-temporal distributions of different nitrogen species and lability of dissolved organic nitrogen from the Dafengjiang River to the Sanniang Bay, China

作者：Lu, Dongliang[1];Kang, Zhenjun[1,3];Yang, Bin[1,3];Dan, Solomon Felix[1,5];Zhang, Dong[4];Zhang, Peng[2];Huang, Haifang[1];Zhong, Qiuping[1]

机构：[1]Beibu Gulf Univ, Guangxi Key Lab Marine Disaster Beibu Gulf, Qinzhou 535011, Peoples R China;[2]Guangdong Ocean Univ, Coll Chem & Environm Sci, Zhanjiang 524088, Peoples R China;[3]Beibu Gulf Univ, Key Lab Coastal Sci & Engn, Qinzhou 535011, Peoples R China;[4]Guangxi Univ, Sch Marine Sci, Nanning 530004, Peoples R China;[5]Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China

年份：2020

卷号：156

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000539160000015)、、EI(收录号：20201908635032)、Scopus(收录号：2-s2.0-85084264156)、WOS

基金：We thank colleagues in marine biogeochemistry laboratory for their assistance in sample collection and analysis. We gratefully acknowledge the financial support of the National Natural Science Foundation of China (Nos. 41966002 and 41706083), Natural Science Foundation of Guangxi (Nos. 2018GXNSFAA281295, 2018GXNSFDA281025 and 2016GXNSFBA380108), Research Startup Fund of Beibu Gulf University (No. 2017KYQD218), and the "Marine Ecological Environment" Academician Workstation Capacity Building of Guangxi (No. Gui Science AD17129046).

语种：英文

外文关键词：Water quality; Nitrogen pollutants; DON lability; Dafengjiang River; Sanniang Bay

外文摘要：Field investigations and incubation experiment were carried out in the Dafengjiang River (DFJR) and Sanniang Bay (SNB) surface water from September 2017 to July 2018 to study the composition and spatio-temporal distributions of different nitrogen (N) species, lability of dissolved organic N (DON), and contributions of different N species from the DFJR to the dissolved inorganic N (DIN) level in the SNB. The spatio-temporal distributions of different N species exhibited significant seasonal variation (p < 0.05). The average contribution of DIN, DON, and particulate nitrogen (PN) to TN was 31.91%, 46.57%, and 21.52%, respectively. Comparatively being the dominant form of N in the study area, the average lability of DON across the incubation sites D1, D5 and D7 ranged from 72%-79%. DIN, DON, and PN from the DFJR respectively contributed to 55.95%, 7.03%, and 5.63% of water quality in the SNB.