Impact of Water-Sediment Regulation Scheme on seasonal and spatial variations of biogeochemical factors in the Yellow River estuary
Wang, Yujue1; Liu, Dongyan2; Lee, Kenneth3; Dong, Zhijun1; Di, Baoping1; Wang, Yueqi1; Zhang, Jingjing1; Liu, Dongyan(East China Normal Univ, State Key Lab Estuarine & Coastal Res, 3663 Northern Rd Zhongshan, Shanghai 200062, Peoples R China)
2017-11-05
发表期刊ESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
卷号198页码:92-105
产权排序第1完成单位
摘要Seasonal and spatial distributions of nutrients and chlorophyll-a (Chl-a), together with temperature, salinity and total suspended matter (TSM), were investigated in the Yellow River estuary (China) to examine the biogeochemical influence of the "Water and Sediment Regulation Scheme (WSRS)" that is used to manage outflows from the river. Four cruises in April, June (early phase of WSRS), July (late phase of WSRS) and September were conducted in 2013 (WSRS from 19th June to 12th July). The results showed that nutrient species could be divided into two major groups according to their seasonal and spatial distributions. One group included NOT, dissolved organic nitrogen (DON) and Si(OH)(4), primarily from freshwater discharge. NOT and DON related to anthropogenic sources were also separated from Si(OH)(4), which was related to weather. The other group included dissolved inorganic phosphorus (DIP), dissolved organic phosphorus (DOP), NO2-, and NO4+. Along with freshwater inputs, sediment absorption/desorption showed impacts on DIP and DOP concentration and distribution. Nitrification was a dominant factor controlling NO2- concentrations. NH4+ was influenced by both sediment absorption/desorption and nitrification. The WSRS not only shifted the seasonal patterns of nutrients in the estuary, with high concentrations moved from autumn to June and July, but also promoted the nutrient spread to the south central part of the Bohai Sea. Spatial distribution of Chlorophyll-a (Chl-a) was influenced by the WSRS, with high concentrations being found in the river mouth in June and September, flanking the river mouth in July, and in the south central part of the Bohai Sea in September. Although Chl-a concentrations increased in June and July, the seasonal patterns did not change. The highest concentrations were found in September. Nutrient loadings during the WSRS relieved DIP and Si(OH)(4) limitation in the estuary and south central Bohai Sea, causing an excess of DIN and disrupting the balance of DIN/DIP in the estuary and Bohai Sea. High turbidity and freshwater flushing depressed the growth of phytoplankton during the WSRS. The growth of phytoplankton was nutrient limited in June (DIP) when the WSRS started and in September after DIP and Si(OH)(4) had been consumed by phytoplankton. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Yellow River Estuary Water And Sediment Regulation Scheme (Wsrs) Nutrients Chl-a Seasonal And Spatial Variation
DOI10.1016/j.ecss.2017.09.005
项目资助者Natural Science Foundation of China(41106101, 41376121) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA11020405) ; Natural Science Foundation of Shandong Province(JQ201414)
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收录类别SCI
关键词[WOS]BOHAI SEA ; FRESH-WATER ; PHYTOPLANKTON COMMUNITY ; CHANGJIANG ESTUARY ; ARTIFICIAL WATER ; MARINE-SEDIMENTS ; NUTRIENT BUDGETS ; CLIMATE-CHANGE ; WORLDS RIVERS ; PHOSPHORUS
文章类型Article
语种英语
WOS研究方向Marine & Freshwater Biology ; Oceanography
WOS记录号WOS:000415781000009
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23496
专题中科院海岸带环境过程与生态修复重点实验室
通讯作者Liu, Dongyan; Liu, Dongyan(East China Normal Univ, State Key Lab Estuarine & Coastal Res, 3663 Northern Rd Zhongshan, Shanghai 200062, Peoples R China)
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
2.East China Normal Univ, State Key Lab Estuarine & Coastal Res, 3663 Northern Rd Zhongshan, Shanghai 200062, Peoples R China
3.CSIRO, Australian Resources Res Ctr, Oceans & Atmosphere, Kensington, WA 6151, Australia
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Wang, Yujue,Liu, Dongyan,Lee, Kenneth,et al. Impact of Water-Sediment Regulation Scheme on seasonal and spatial variations of biogeochemical factors in the Yellow River estuary[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2017,198:92-105.
APA Wang, Yujue.,Liu, Dongyan.,Lee, Kenneth.,Dong, Zhijun.,Di, Baoping.,...&Liu, Dongyan.(2017).Impact of Water-Sediment Regulation Scheme on seasonal and spatial variations of biogeochemical factors in the Yellow River estuary.ESTUARINE COASTAL AND SHELF SCIENCE,198,92-105.
MLA Wang, Yujue,et al."Impact of Water-Sediment Regulation Scheme on seasonal and spatial variations of biogeochemical factors in the Yellow River estuary".ESTUARINE COASTAL AND SHELF SCIENCE 198(2017):92-105.
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