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Temporal and Spatial Distribution of DIN and DIP Concentrations and Source Apportionment Along the Bohai Sea of China During 2015-2022

文献类型：期刊论文

作者Zhang, Xinjie1,2,4,5; Tian, Chongguo1,2,5; Sun, Zeyu1,2,4,5; Yin, Xuehua1,2,4,5; Sun, Rong1,2,5; Wang, Juying3
刊名CHINESE GEOGRAPHICAL SCIENCE
出版日期2024-12-01
卷号34期号:6页码:1004-1016
关键词dissolved inorganic nitrogen (DIN) dissolved inorganic phosphorus (DIP) source apportionment positive matrix factorization (PMF) model the Bohai Sea of China
ISSN号1002-0063
DOI10.1007/s11769-024-1464-3
通讯作者Tian, Chongguo(cgtian@yic.ac.cn) ; Wang, Juying(jywang@nmemc.org.cn)
英文摘要The Bohai Sea is one of the most polluted sea areas in China. In this study, we used 2184 integrated concentrations of dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP) in the Bohai Sea of China during spring (March, April, and May), summer (June, July, and August), and autumn (October and November) from 2015 to 2022 to explore the trends and sources of nutrients variations. From 2015 to 2022, DIN showed a downward trend until 2020 and then an upward trend, whereas DIP exhibited a stable trend with a slight decrease. The concentrations of DIN and DIP had similar seasonal pattern which was the highest in autumn (0.292 +/- 0.247 mg/L for DIN and 0.013 +/- 0.016 mg/L for DIP) but lower in spring (0.267 +/- 0.238 mg/L for DIN and 0.006 +/- 0.010 mg/L for DIP) and summer (0.263 +/- 0.324 mg/L for DIN and 0.008 +/- 0.010 mg/L for DIP). Sources of DIN and DIP apportioned by the positive matrix factorization (PMF) model were riverine input, sediment resuspension, sewage discharge, atmospheric deposition, and underground input. During 2015-2022, the largest contributor to DIN was sewage discharge (28.7%) and the largest contributor to DIP was sediment resuspension (44.6%). Seasonally, DIN in spring and autumn was dominated by sewage discharge (45.4% and 27.8%, respectively). Whereas in summer, it was dominated by riverine input (32.4%) and atmospheric deposition (29.7%). DIP was dominated by sediment resuspension during all three seasons (35.8%-52.5%). In addition, the increase in DIN concentrations in 2021 and 2022 were mainly due to the incremental input of river discharge and atmospheric deposition caused by increased precipitation during summer and autumn.
WOS关键词ATMOSPHERIC NITROGEN ; SUMMER HYPOXIA ; PHOSPHORUS ; WATER ; NUTRIENTS ; EUTROPHICATION ; ECOSYSTEM
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001356233000004
资助机构National Marine Environmental Monitoring Center (NMEMC) ; North China Sea Branch of State Oceanic Administration
源URL[http://ir.yic.ac.cn/handle/133337/38217]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Tian, Chongguo; Wang, Juying
作者单位1.Shandong Acad Environm Planning, State Environm Protect Key Lab Land & Sea Ecol Gov, Jinan 250101, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
3.Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xinjie,Tian, Chongguo,Sun, Zeyu,et al. Temporal and Spatial Distribution of DIN and DIP Concentrations and Source Apportionment Along the Bohai Sea of China During 2015-2022[J]. CHINESE GEOGRAPHICAL SCIENCE,2024,34(6):1004-1016.
APA Zhang, Xinjie,Tian, Chongguo,Sun, Zeyu,Yin, Xuehua,Sun, Rong,&Wang, Juying.(2024).Temporal and Spatial Distribution of DIN and DIP Concentrations and Source Apportionment Along the Bohai Sea of China During 2015-2022.CHINESE GEOGRAPHICAL SCIENCE,34(6),1004-1016.
MLA Zhang, Xinjie,et al."Temporal and Spatial Distribution of DIN and DIP Concentrations and Source Apportionment Along the Bohai Sea of China During 2015-2022".CHINESE GEOGRAPHICAL SCIENCE 34.6(2024):1004-1016.

入库方式： OAI收割

来源：烟台海岸带研究所

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