Using natural radium and radon isotopes trace the water transport process and nutrients distribution in the Yellow River Estuary under the influence of the Water-Sediment Regulation Scheme

Zhang Xiaojie; Xu Bochao; Xia Dong; Jiang Xueyan; Jian Huimin

doi:10.3969/j.issn.0253-4193.2016.08.004

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Zhang Xiaojie, Xu Bochao, Xia Dong, Jiang Xueyan, Jian Huimin. Using natural radium and radon isotopes trace the water transport process and nutrients distribution in the Yellow River Estuary under the influence of the Water-Sediment Regulation Scheme[J]. Haiyang Xuebao, 2016, 38(8): 36-43. doi: 10.3969/j.issn.0253-4193.2016.08.004

Citation:

Zhang Xiaojie, Xu Bochao, Xia Dong, Jiang Xueyan, Jian Huimin. Using natural radium and radon isotopes trace the water transport process and nutrients distribution in the Yellow River Estuary under the influence of the Water-Sediment Regulation Scheme[J]. Haiyang Xuebao, 2016, 38(8): 36-43. doi: 10.3969/j.issn.0253-4193.2016.08.004

Citation:

Zhang Xiaojie, Xu Bochao, Xia Dong, Jiang Xueyan, Jian Huimin. Using natural radium and radon isotopes trace the water transport process and nutrients distribution in the Yellow River Estuary under the influence of the Water-Sediment Regulation Scheme[J]. Haiyang Xuebao, 2016, 38(8): 36-43. doi: 10.3969/j.issn.0253-4193.2016.08.004

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Using natural radium and radon isotopes trace the water transport process and nutrients distribution in the Yellow River Estuary under the influence of the Water-Sediment Regulation Scheme

doi: 10.3969/j.issn.0253-4193.2016.08.004

1.
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
2.
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China;Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
3.
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China

Received Date: 2015-12-19
Rev Recd Date: 2016-02-19

Abstract

Abstract

In order to study the distribution of radium isotopes, radon isotopes and nutrients under the influence of the Water-Sediment Regulation Scheme (WSRS) in the Yellow River Estuary. We carried out 24 h time-series observations at several stations in the estuary and coastal areas in July 2013. The results indicate that: (1) the distributions of radium isotopes and radon isotopes at south side were both different from which in the north side of the estuary, leading the estuary to be divided into two zones. The north zone was under a remarkable influence of WSRS and the south zone was under little influence of WSRS, respectively. High concentrations of radium and radon isotopes in the north zone were mainly due to terrestrial input, such as river discharge and submarine groundwater discharge. (2) Water ages in the north zone was (2.9±1.6)d, which in the south zone was (5.0±2.1)d. Water ages increased with rising tide and decreased with falling tide. (3) Dissolved inorganic nitrogen (DIN) and dissolved silicate (DSi) distribution also showed zonation characteristics, which concentrations were significantly higher in north area. The concentrations of dissolved inorganic phosphorus (DIP), however, were not distinct in the whole study area.
- Yellow River Estuary,
- Water-Sediment Regulation Scheme,
- radium isotope,
- radon isotope,
- nutrients

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References(27)

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