Study of sedimentary section records of organic matter in Sanggou Bay over the last 200 years

SONG Xianli; YANG Qian; SUN Yao; YIN Hui; JIANG Shuanglin

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SONG Xianli, YANG Qian, SUN Yao, YIN Hui, JIANG Shuanglin. Study of sedimentary section records of organic matter in Sanggou Bay over the last 200 years[J]. Haiyang Xuebao, 2012, 34(3): 120-126.

Citation:

SONG Xianli, YANG Qian, SUN Yao, YIN Hui, JIANG Shuanglin. Study of sedimentary section records of organic matter in Sanggou Bay over the last 200 years[J]. Haiyang Xuebao, 2012, 34(3): 120-126.

SONG Xianli, YANG Qian, SUN Yao, YIN Hui, JIANG Shuanglin. Study of sedimentary section records of organic matter in Sanggou Bay over the last 200 years[J]. Haiyang Xuebao, 2012, 34(3): 120-126.

Citation:

SONG Xianli, YANG Qian, SUN Yao, YIN Hui, JIANG Shuanglin. Study of sedimentary section records of organic matter in Sanggou Bay over the last 200 years[J]. Haiyang Xuebao, 2012, 34(3): 120-126.

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Study of sedimentary section records of organic matter in Sanggou Bay over the last 200 years

1.
College of Chemistry and Chemical Engineering Ocean University of China, Qingdao 266100, China;Marine Culture Institute of Shandong Province, Qingdao 266002, China
2.
College of Chemistry and Chemical Engineering Ocean University of China, Qingdao 266100, China;Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Qingdao 266071, China
3.
Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Qingdao 266071, China
4.
College of Chemistry and Chemical Engineering Ocean University of China, Qingdao 266100, China

Received Date: 2011-09-28
Rev Recd Date: 2012-02-09

Abstract

Abstract

For study of sedimentary section records of organic matter in Sanggou Bay, the content of TOC and TN of the sediment from two stations was determined. Combined with sedimentary chronosequence, the TOC and TN of aquatic source before the Industrial Revolution,during the Industrial Revolution and after large-scale farming in Sanggou Bay was estimated. Meanwhile, an assessment of the quality of organic matter in the cultivated area of Sanggou Bay was generated. The main results are as follows: before the Industrial Revolution, TOC was steady relatively, but TN decreased slowly with increasing depth; during the Industrial Revolution, fluctuation of TOC and TN were both great; after the large-scale farming, TOC decreased gradually and stabilized, and TN increased significantly with the expansion of farming, moreover, TOC and TN in surface sediments in scallop farming area were lower than that in the kelp farming area. The change tendency of the source of organic matter was mix source-terrigenous source-mix source.In addition, the percentage of TOC and TN of aquatic source increased due to the action of large-scale farming, and there was a cumulative pollution of nitrogen in the kelp ocean-based cultivation area.
- sedimentary section,
- TOC,
- TN,
- assessment,
- Sanggou Bay

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