A study on particulate silica in the northern part of the South China Sea in winter

LU Chao; LIU Su-mei; REN Jing-ling; CHEN Qi; LUO Xi; LI Jian-bing; ZHANG Jing

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LU Chao, LIU Su-mei, REN Jing-ling, CHEN Qi, LUO Xi, LI Jian-bing, ZHANG Jing. A study on particulate silica in the northern part of the South China Sea in winter[J]. Haiyang Xuebao, 2009, 31(5): 31-39.

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LU Chao, LIU Su-mei, REN Jing-ling, CHEN Qi, LUO Xi, LI Jian-bing, ZHANG Jing. A study on particulate silica in the northern part of the South China Sea in winter[J]. Haiyang Xuebao, 2009, 31(5): 31-39.

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A study on particulate silica in the northern part of the South China Sea in winter

1.
Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao 266100, China
2.
Laboratory of Ocean Dynamic Processes and Satellite Oceanography, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao 266100, China;State Key Laboratory of Estuary and Coast, Eastchina Normal of University, Shanghai 200062, China

Received Date: 2009-04-01
Rev Recd Date: 2009-06-12

Abstract

Abstract

The distribution of particulate biogenic silica (PBSi) and lithogenic silica (LSi) were studied in the northern part of South China Sea in winter 2004.The average concent rations of PBSi and LSi were 0.59 and 8.93 μmol/dm³,respectively.Due to the intrusion of off shore seawater,the concentrations of PBSi decreased greatly from the coastal water (1.0μmol/dm³) to the offshore water (0.23μmol/dm³),just like the distribution of dissolved silicate (DSi),which is related to the water mass and shelf front.The concentration of PBSi in the northern part of South China Sea is ranked at the lower end among the world coastal areas.
- biogenic silica,
- lithogenic silica,
- distribution,
- shelf front,
- South China Sea

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