Sedimentary features of the Yangtze River-derived along-shelf clinoform deposit in the East China Sea

2006 ◽  
Vol 26 (17-18) ◽  
pp. 2141-2156 ◽  
Author(s):  
J.P. Liu ◽  
A.C. Li ◽  
K.H. Xu ◽  
D.M. Velozzi ◽  
Z.S. Yang ◽  
...  
Keyword(s):  
East China Sea ◽  
Yangtze River ◽  
East China ◽  
The Yangtze River ◽  
The East China Sea ◽  
China Sea

Dynamics of nutrient export from the Yangtze River to the East China sea

2019 ◽  
Vol 229 ◽  
pp. 106415 ◽  
Author(s):  
Wang Hua ◽  
Yan Huaiyu ◽  
Zhou Fengnian ◽  
Li Bao ◽  
Zhuang Wei ◽  
...  
Keyword(s):  
East China Sea ◽  
Yangtze River ◽  
East China ◽  
Nutrient Export ◽  
The Yangtze River ◽  
The East China Sea ◽  
China Sea

Recent sedimentary record of storms and floods within the estuarine-inner shelf region of the East China Sea

The Holocene ◽  
2016 ◽  
Vol 27 (3) ◽  
pp. 439-449 ◽  
Author(s):  
Yifei Zhao ◽  
Xinqing Zou ◽  
Jianhua Gao ◽  
Chenglong Wang
Keyword(s):  
Grain Size ◽  
East China Sea ◽  
Yangtze River ◽  
Extreme Weather Events ◽  
East China ◽  
The Yangtze River ◽  
Flood Events ◽  
The East China Sea ◽  
Inner Shelf ◽  
China Sea

Although extreme weather events make a strong impact in shallow marine sedimentary environments, there is still a paucity of past records for the Holocene period. Estuarine-inner shelf mud regions deposited from rivers that transport a large amount of suspended sediment represent an important archive of the Holocene. Two cores (S5-2 and JC07) retrieved from the estuarine-inner shelf regions of the East China Sea provided an opportunity to use sensitive grain size and 210Pb dating to reconstruct a history of extreme weather events in the Yangtze River basin. Here, we show that the average sedimentation rates of the two cores, S5-2 (1930–2013) and JC07 (1910–2013), were estimated to be 3.11 and 1.56 cm/yr, respectively. The results indicated that sediment supply played an important role in sedimentation of the estuarine-inner shelf mud region of the East China Sea. Sand content strongly increased in the late 1980s, a result of downstream riverbed erosion of the Yangtze River and submerged deltas. The grain size versus the standard deviation method was used to identify grain-size intervals with the highest variability along a sedimentary sequence. The Yangtze estuary mud area coarse population correlated well with historical literature on Yangtze River floods since AD 1930. Extreme storm events corresponded well with historical literature on the Zhe-Min mud region of the East China Sea. The spectral analyses of the sample core coastal population demonstrated that flood and storm events were consistent with a ~3–8 a periodic change of El Niño Southern Oscillation (ENSO), suggesting that the flood events usually follow ENSO years in the Yangtze River. Consequently, sediment records preserved in the two cores demonstrated different sedimentary responses to Yangtze River floods and storms, which is important to recover centennial scale flood events, to infer extreme precipitation, and to understand climate change in the estuarine-inner shelf of the East China Sea. Nevertheless, more efforts are still needed to simulate paleo-flood and predict future flood events in the context of global warming.

Tracing suspended organic nitrogen from the Yangtze River catchment into the East China Sea

2007 ◽  
Vol 107 (3) ◽  
pp. 367-377 ◽  
Author(s):  
Ying Wu ◽  
Thorsten Dittmar ◽  
Kai-Uwe Ludwichowski ◽  
Gerhard Kattner ◽  
Jing Zhang ◽  
...  
Keyword(s):  
East China Sea ◽  
Yangtze River ◽  
Organic Nitrogen ◽  
East China ◽  
The Yangtze River ◽  
The East China Sea ◽  
River Catchment ◽  
China Sea ◽  
Yangtze River Catchment

Estimation of freshwater and material fluxes from the Yangtze River into the East China Sea by using TOPEX/Poseidon altimeter data

2005 ◽  
Vol 19 (18) ◽  
pp. 3683-3698 ◽  
Author(s):  
Jiqun Zhang ◽  
Kaiqin Xu ◽  
Lianhui Qi ◽  
Yonghui Yang ◽  
Masataka Watanabe
Keyword(s):  
East China Sea ◽  
Yangtze River ◽  
East China ◽  
Altimeter Data ◽  
The Yangtze River ◽  
The East China Sea ◽  
China Sea ◽  
Material Fluxes

Exploring the dynamics of Cu transported from the Yangtze River to the East China Sea

2020 ◽  
Vol 156 ◽  
pp. 111250
Author(s):  
Xiaoyu Zhang ◽  
Hua Wang ◽  
Fengnian Zhou ◽  
Bao Li ◽  
Wenming Zhang
Keyword(s):  
East China Sea ◽  
Yangtze River ◽  
East China ◽  
The Yangtze River ◽  
The East China Sea ◽  
China Sea

Phytoplankton productivity and community structure variations over the last 160 years in the East China Sea coast in response to natural and human-induced environmental changes

The Holocene ◽  
2019 ◽  
Vol 29 (7) ◽  
pp. 1145-1154 ◽  
Author(s):  
Lilei Chen ◽  
Jian Liu ◽  
Gang Xu ◽  
Feng Li
Keyword(s):  
Community Structure ◽  
East China Sea ◽  
Yangtze River ◽  
East China ◽  
The Yangtze River ◽  
The East China Sea ◽  
Phytoplankton Productivity ◽  
China Sea ◽  
Mud Area ◽  
Sea Coast

Eutrophication has caused drastic changes to the marine ecosystem of the East China Sea during the past decades. However, there is relatively sparse evidence of historical changes, as well as the explicit effects of climatic changes and anthropogenic activities on the primary productivity of marine coastal ecosystems. In this study, surface and core sediments from the Zhejiang-Fujian coastal mud area, East China Sea coast, were analyzed using the bulk and molecular biomarkers. The results showed that ecosystem changes were characterized by increased phytoplankton productivity and a fluctuant transition from blooms mostly dominated by diatoms to red tide events dominated by dinoflagellates. Variations from the early 1850s to the early 2010s can be divided into a nature-dominated period (the early 1850s–1960s) and a human-impacted period (1960s–the early 2010s). Particularly, natural forcing such as heavy floods (e.g. 1998, 1954, and 1931) in the whole of the Yangtze River catchment, variations in the intensity of East Asia Monsoon, and strengthened or weakened Kuroshio intrusion/positive or negative Pacific Decadal Oscillation phase in the coastal mud area have substantially affected the phytoplankton productivity and community structure during the nature-dominated period. In contrast, changes in nutrient supply and compositions were more apparent during the human-impacted period, which could have been because of increased fertilizer usage, discharges of industrial wastewater and domestic sewage, and large-scale human projects (e.g. Danjiangkou Reservoir and Three Gorges Dam) in the Yangtze River drainage area, leading to significant phytoplankton productivity and community structure variations in the coastal mud area system of East China Sea.

Transfer of Water and Sediment from the Yangtze River to the East China Sea, June 1980

1983 ◽  
Vol 40 (S1) ◽  
pp. s72-s82 ◽  
Author(s):  
Yang Zuo-sheng ◽  
John D. Milliman ◽  
Michael G. Fitzgerald
Keyword(s):  
Suspended Sediment ◽  
East China Sea ◽  
Yangtze River ◽  
Water Discharge ◽  
East China ◽  
The Yangtze River ◽  
The East China Sea ◽  
The South ◽  
China Sea ◽  
The North

The Yangtze River, fourth largest in the world in terms of sediment discharge, contributes about 500 × 106 t annually to the East China Sea. A disproportionate part of the load is carried after peak summer discharge, presumably the result of draining the rice fields. During a week-long study of the estuary, greatest water discharge was observed in the North Passage. Suspended sediment concentrations were highest in the South Channel of the South Passage, although in contrast to the North Passage little of the suspended sediment was coarse. The high sediment concentrations in the South Channel appear to be the result of oscillatory (net transport upstream) movement of material, in contrast to the marked seaward transport measured in the North Passage.Key words: Yangtze River, sedimentation, discharge, transport, estuary

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