Organic Pollution in Surface and Core Sediments from the Yangtze River Estuarine Region - Historic Research Study and A Review of Recent Investigations

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Baugh Peter J ◽  
Hutchinson Simon M ◽  
Min Liu ◽  
Lu Lizhong ◽  
Zhang Weigou ◽  
...  
Keyword(s):  
Yangtze River ◽  
Research Study ◽  
Organic Pollution ◽  
The Yangtze River ◽  
Core Sediments ◽  
River Estuarine ◽  
Estuarine Region

Study on the Yangtze River Estuarine Turbidity Maximum

2011 ◽  
Vol 90-93 ◽  
pp. 2774-2777 ◽  
Author(s):  
Xin Li ◽  
De An Wu
Keyword(s):  
Yangtze River ◽  
Turbidity Maximum ◽  
Estuarine Turbidity Maximum ◽  
The Yangtze River ◽  
Definition Of ◽  
River Estuarine

This paper presents the definition of the estuarine turbidity maximum, its formation reasons and the factors of variety. According to this information, the Yangtze River estuarine turbidity maximum is analyzed as the typical estuarine turbidity maximum. The results show that North Channel turbidity maximum is different with the others for different hydrodynamics. The Delft3D model is applied to simulation the phenomena and the results are agreed with the analysis.

Natural and anthropogenic forcing on the dynamics of virioplankton in the Yangtze river estuary

2006 ◽  
Vol 86 (3) ◽  
pp. 543-550 ◽  
Author(s):  
Nianzhi Jiao ◽  
Yanlin Zhao ◽  
Tingwei Luo ◽  
Xiulin Wang
Keyword(s):  
Yangtze River ◽  
Anthropogenic Impacts ◽  
River Estuary ◽  
Distribution Patterns ◽  
Yangtze River Estuary ◽  
The Yangtze River ◽  
Viral Abundance ◽  
Estuarine Area ◽  
Algal Virus ◽  
River Estuarine

Seasonal investigation of virus dynamics by flow cytometry was conducted in the Yangtze river estuarine area in April, August, November 2002 and February 2003, and a supplemental investigation in the inner estuary and downstream of the river was conducted in October 2005. The majority of the total viral abundance was bacteriophage and only 5.4% of the total was algal virus. Total viral abundance varied with season and location, ranging from 6.75×105–1.68×107 particles/ml, and the virus:bacterium ratio (VBR) ranged from 1.52 to 72.02 with a mean of 8.7. In the present study, viral abundance peaked in both the summer and the winter, unlike the typical seasonal pattern reported in the literature, in which viral abundance peaks in the summer when bacterial hosts are also at their most abundant. However, the driving forces for the two peaks reported here were totally different, the summer viral abundance peak coupled with the development of bacterial hosts which were controlled largely by temperature year-round and by trophic state occasionally, while the winter one seemed to be multi-factor controlled. The host-phage interaction was no longer predominant in control of the winter viral abundance as bacterial abundance was lowest in this season. The winter low temperature would help maintain a high viral abundance as high temperatures might increase viral inactivation and viral decay; the VBR peak values actually occurred in the winter. More importantly, the high virus-containing freshwater discharge in winter due to a higher proportion of anthropogenic sewage relative to low natural flooding in winter run-off, turned out to be the first factor contributing to the high winter viral abundance and VBR values. In addition, the variation of intrusion of warm and relatively oligotrophic water from oceanic currents played a role alternating the distribution patterns of temperature, salinity and trophic conditions and consequently the distribution patterns of virus and bacteria seasonally and spatially. Dynamics of virus in the Yangtze river estuarine area is thus characterized by distinct seasonal and spatial variations due to natural forcing and by pronounced alternation of the regular patterns due to anthropogenic impacts.

Yiling Multi-span Cable-Stayed Bridge over the Yangtze River

2004 ◽  
Vol 88 (8) ◽  
pp. 59-64
Author(s):  
Changyu Shao ◽  
Qinger Deng
Keyword(s):  
Yangtze River ◽  
The Yangtze River ◽  
Cable Stayed Bridge

Composition and changes in abundance and biomass of fish assemblages along the Jingjiang section of the Yangtze River over the last decade

2014 ◽  
Vol 21 (6) ◽  
pp. 688-698
Author(s):  
Sun Shasha ◽  
Tang Wenqiao ◽  
Guo Hongyi ◽  
Li Huihua ◽  
Liu Dong ◽  
...  
Keyword(s):  
Yangtze River ◽  
Fish Assemblages ◽  
The Yangtze River
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