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Fluxes, seasonal patterns and sources of various nutrient species (nitrogen, phosphorus and silicon) in atmospheric wet deposition and their ecological effects on Jiaozhou Bay, North China
Xing, Jianwei1,2; Song, Jinming1,3; Yuan, Huamao1,3; Li, Xuegang1,3; Li, Ning1,3; Duan, Liqin1,3; Kang, Xuming1,3; Wang, Qidong1,3
2017-01-15
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号576页码:617-627
文章类型Article
摘要Atmospheric wet deposition (AWD) is an important pathway for anthropogenic and natural pollutants entering aquatic ecosystems. However, the study on the magnitudes and ecological effects of AWD of various nutrient species (nitrogen, phosphorus and silicon) on Jiaozhou Bay is scarce. To address these issues, in this study, wet deposition samples were collected at a coastline site along Jiaozhou Bay from June 2015 to May 2016. Dissolved inorganic nitrogen (DIN, including NH4-N, NO3-N and NO2-N), dissolved organic nitrogen (DON), dissolved inorganic phosphorus (DIP, i.e. PO4-P), dissolved organic phosphorus (DOP) and reactive silicate (SiO3-Si) were analyzed. The volume-weighted mean (VWM) concentrations of NH4-N, NO3-N and DON in AWD were higher compared with those of NO2-N, PO4-P, DOP and SiO3-Si. The annual influxes of NH4-N, NO3-N, NO2-N, DON, DIP, DOP, and SiO3-Si via AWD were 92.8, 54.5, 0.427, 475, 0274, 0.448 and 1.73 mmol. m(-2).yr(-1) respectively; NH4-N and DOP were the dominant species for N and P, and the roles of DON and DOP in AWD could not be neglected. Significant seasonal variations were observed in concentrations and fluxes of all nutrient species owing to the effects of rainfall, the intensities of local emission sources and the long-distance transports of natural and anthropogenic pollutants. The major sources of N, Si and Pin AWD were agricultural activities, soil dust and a mixing one involving both anthropogenic and natural sources, respectively. Though AWD represents relatively low percentages of external inputs for nutrients and low contribution to primary productivity (PP) of Jiaozhou Bay, large amounts of nutrient inputs originating from sudden heavy rains may enhance PP prominently, as well as aggravate P-limitation and Si-limitation and further affect phytoplankton community structures and size-fractioned structures with the quite high DIN:DIP ratios and extremely low Si:DIN ratios in AWD. (C) 2016 Elsevier B.V. All rights reserved.
关键词Nutrient Atmospheric Wet Deposition Fluxes Temporal Variations Sources Etological Effects Jiaozhou Bay
DOI10.1016/j.scitotenv.2016.10.134
收录类别SCI
语种英语
WOS记录号WOS:000390964700060
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136268
专题海洋生态与环境科学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
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Xing, Jianwei,Song, Jinming,Yuan, Huamao,et al. Fluxes, seasonal patterns and sources of various nutrient species (nitrogen, phosphorus and silicon) in atmospheric wet deposition and their ecological effects on Jiaozhou Bay, North China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,576:617-627.
APA Xing, Jianwei.,Song, Jinming.,Yuan, Huamao.,Li, Xuegang.,Li, Ning.,...&Wang, Qidong.(2017).Fluxes, seasonal patterns and sources of various nutrient species (nitrogen, phosphorus and silicon) in atmospheric wet deposition and their ecological effects on Jiaozhou Bay, North China.SCIENCE OF THE TOTAL ENVIRONMENT,576,617-627.
MLA Xing, Jianwei,et al."Fluxes, seasonal patterns and sources of various nutrient species (nitrogen, phosphorus and silicon) in atmospheric wet deposition and their ecological effects on Jiaozhou Bay, North China".SCIENCE OF THE TOTAL ENVIRONMENT 576(2017):617-627.
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