Variations of Hydrodynamics and Submarine Groundwater Discharge in the Yellow River Estuary Under the Influence of the Water-Sediment Regulation Scheme

Xia, Dong; Yu, Zhigang; Xu, Bochao; Gao, Maosheng; Mi, Tiezhu; Jiang, Xueting; Yao, Peng

doi:10.1007/s12237-015-9994-7

Cited by 18 publications

(4 citation statements)

References 47 publications

(73 reference statements)

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“…Because the Maowei Sea is characterized by a larger tidal range (2.5 m) and higher precipitation (2,140 mm; Tian et al, ), the SGD flux in the Maowei Sea may be mainly controlled both by the tide and precipitation. Many other factors (e.g., seasonal sea level changes (Moore, ), seabed topography (Konikow et al, ), and water‐sediment regulation (Xia et al, )) could also influence the SGD, and they deserve further study.…”

Section: Discussionmentioning

confidence: 99%

Submarine Groundwater‐Borne Nutrients in a Tropical Bay (Maowei Sea, China) and Their Impacts on the Oyster Aquaculture

Chen

Lao

Wang

et al. 2018

Geochem Geophys Geosyst

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Submarine groundwater discharge (SGD) has been recognized as an important pathway for nutrients into estuaries, coasts, and the adjacent seas. In this study, 222Rn was used to estimate the SGD‐associated nutrient fluxes into an aquaculture area in a typical tropical bay (Maowei Sea, China). The SGD into the Maowei Sea during June 2016 was estimated to be 0.36 ± 0.33 m d−1 and was associated with SGD‐derived dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), and dissolved silicon (DSi) fluxes (mol d−1) of (4.5 ± 5.5) × 106, (5.3 ± 9.1) × 104, and (9.4 ± 9.3) × 106, respectively. The SGD‐derived nutrients (i.e., DIN, DIP, and DSi) were more than 1.9, 0.9, and 3.6 times the amounts in the local river input and served as dominant sources in the nutrient budgets in the Maowei Sea. Moreover, the N/P ratios in the SGD around the Maowei Sea were high (mean: 64), and these ratios likely exceeded the environmental self‐purification capacity, thereby enhancing the biomass and changing the phytoplankton community structure. Therefore, SGD processes with derived nutrients may affect the biogeochemical cycles and marine ecological environment in the Maowei Sea. Furthermore, the N/P ratios (∼67) in oysters are very close to those in the SGD in the Maowei Sea; this coincidence suggests that the high N/P ratios in the SGD are likely to be one of the most important sources that support oyster aquaculture, which might weaken the burden of water eutrophication in the Maowei Sea.

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Section: Discussionmentioning

confidence: 99%

Submarine Groundwater‐Borne Nutrients in a Tropical Bay (Maowei Sea, China) and Their Impacts on the Oyster Aquaculture

Chen

Lao

Wang

et al. 2018

Geochem Geophys Geosyst

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“…Futher more, they built a positive correlation between nutrient content and 222 Rn, indicating that SGD is the main nutrient route in the estuary of the Yellow River. (Xia et al , 2016) integrated other hydrological parameters in space and time for radium and radon isotopes during the non-WSRS and WSRS in 2013. By comparing the data, it can be seen that the radium ( 223 Ra, 224 Ra, 226 Ra) and 222 Rn activities in the Yellow River estuary during the WSRS period are significantly higher than those in the non-WSRS period.…”

Section: Sgd Investigation Along Huanghai and Bohaimentioning

confidence: 99%

“…There exsists a wide and thick distribution area of loose sediments in the estuary of Yellow River, Yangtze River, Pearl River and other rivers. In addition, the water yield of coastal aquifer is good, resulting in the large amount of groundwater input (Xuet al , 2014;Xia et al , 2016;Guo et al , 2017;. In the east coast of Hainan Island, groundwater input pose a huge impact on the local environment (Wang and Du, 2016), while the input of groundwater in the Minjiang River estuary is very limited (Liu et al , 2016).…”

Section: Introductionmentioning

confidence: 99%

Study on SGD in the Coastal Zone of the Huanghai and Bohai: A review

zhang

Kong

Zhou

et al. 2020

Preprint

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In recent years, hydrogeologists have paid more and more attention to the discharge of submarine groundwater(SGD), which is a typical and important process of the interaction between seawater and groundwater in coastal areas, tidal flats and estuaries.As an important sources of water and chemical materials to ocean, SGD affects the global water cycle and coastal ecological environment. SGD also influence the transport path of pollutants from land to the sea. Therefore, it affects the local and global circulation of coastal groundwater and seawater. Since it usually occurs in aquifer, it is easily overlooked by the researchers. In addition, due to the uncertainty of SGD in time and space, it is difficult to be measured accurately. Aiming at recently study, this paper will discuss the research process, research method, research field and environmental significance of SGD on the coast of the Huanghai and the Bohai. Based on the analysis of the existing research results, some suggestions on improving SGD investigation are put forward.

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“…Heavily sedimentation resulted in that the river bed of lower yellow river (LYR) is higher than the surrounding lands, which posed a huge flood risk of the residents. Since 2002, a Runoff-Sediment Regulation Scheme (WSRS) has been implemented by the Yellow River Conservancy Commission (YRCC) to reduce the siltation in LYR and transport sediment to sea (Xia et al, 2016). Many researchers tried to analyse the influence of the WSRS.…”

Section: Introductionmentioning

confidence: 99%

Multiple time scale analysis of sediment and runoff changes in the Lower Yellow River

et al. 2018

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Abstract. Sediment and runoff changes of seven hydrological stations along the Lower Yellow River (LYR) (Huayuankou Station, Jiahetan Station, Gaocun Station, Sunkou Station, Ai Shan Station, Qikou Station and Lijin Station) from 1980 to 2003 were alanyzed at multiple time scale. The maximum value of monthly, daily and hourly sediment load and runoff conservations were also analyzed with the annually mean value. MannKendall non-parametric mathematics correlation test and Hurst coefficient method were adopted in the study.Research results indicate that (1) the runoff of seven hydrological stations was significantly reduced in the study period at different time scales. However, the trends of sediment load in these stations were not obvious. The sediment load of Huayuankou, Jiahetan and Aishan stations even slightly increased with the runoff decrease.(2) The trends of the sediment load with different time scale showed differences at Luokou and Lijin stations. Although the annually and monthly sediment load were broadly flat, the maximum hourly sediment load showed decrease trend. (3) According to the Hurst coefficients, the trend of sediment and runoff will be continue without taking measures, which proved the necessary of runoff-sediment regulation scheme.

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Variations of Hydrodynamics and Submarine Groundwater Discharge in the Yellow River Estuary Under the Influence of the Water-Sediment Regulation Scheme

Cited by 18 publications

References 47 publications

Submarine Groundwater‐Borne Nutrients in a Tropical Bay (Maowei Sea, China) and Their Impacts on the Oyster Aquaculture

Submarine Groundwater‐Borne Nutrients in a Tropical Bay (Maowei Sea, China) and Their Impacts on the Oyster Aquaculture

Study on SGD in the Coastal Zone of the Huanghai and Bohai: A review

Multiple time scale analysis of sediment and runoff changes in the Lower Yellow River

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