Laser induced fluorescence technique for detecting organic matter in East China Sea

2017 ◽  
Author(s):  
Haiqing Huang ◽  
Peng Chen ◽  
Tianyu Wang ◽  
Delu Pan
Keyword(s):  
Organic Matter ◽  
East China Sea ◽  
Laser Induced Fluorescence ◽  
East China ◽  
Fluorescence Technique ◽  
China Sea

scholarly journals Carbon and nitrogen isoscape of particulate organic matter in the East China Sea

2021 ◽  
pp. 102667
Author(s):  
Pei-Chi Ho ◽  
Noboru Okuda ◽  
Chih-Fu Yeh ◽  
Pei-Ling Wang ◽  
Gwo-Ching Gong ◽  
...  
Keyword(s):  
Organic Matter ◽  
East China Sea ◽  
Particulate Organic Matter ◽  
East China ◽  
The East China Sea ◽  
Carbon And Nitrogen ◽  
China Sea

Distribution and source of organic matter in surface sediment from the muddy deposit along the Zhejiang coast, East China Sea

2017 ◽  
Vol 123 (1-2) ◽  
pp. 395-399 ◽  
Author(s):  
Gang Xu ◽  
Jian Liu ◽  
Gang Hu ◽  
Tara N. Jonell ◽  
Lilei Chen
Keyword(s):  
Organic Matter ◽  
East China Sea ◽  
Surface Sediment ◽  
East China ◽  
China Sea

scholarly journals Factors controlling the distributions of dissolved organic matter in the East China Sea during summer

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jeonghyun Kim ◽  
Tae-Hoon Kim ◽  
Sang Rul Park ◽  
Hyuk Je Lee ◽  
Jang Kyun Kim
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
East China Sea ◽  
East China ◽  
The East China Sea ◽  
China Sea

Multiple lipid biomarkers record organic matter sources and paleoenvironmental changes in the East China Sea coast over the past 160 years

The Holocene ◽  
2020 ◽  
Vol 31 (1) ◽  
pp. 16-27
Author(s):  
Lilei Chen ◽  
Feng Li ◽  
Jian Liu ◽  
Xingliang He
Keyword(s):  
Fatty Acids ◽  
Organic Matter ◽  
20Th Century ◽  
East China Sea ◽  
Lipid Biomarkers ◽  
East China ◽  
Early 20Th Century ◽  
The East China Sea ◽  
China Sea ◽  
Lipid Biomarker

The use of lipid biomarkers as paleoenvironmental proxies relies on an accurate assessment of their organic matter (OM) sources. In this study, we analyzed multiple lipids in core sediments recovered from the Zhejiang–Fujian coastal mud area to provide a 160-year record of OM input to the East China Sea (ECS) coastal sediments and to reconstruct paleoenvironmental conditions over this interval. The molecular composition of the samples was characterized by a mixture of natural lipids, particularly those derived from terrestrial vascular plants, marine/riverine plankton and macrophytes, and bacteria. The sources of some lipid components were ambiguous/mixed as they were potentially derived from multiple precursor organisms and because of limitations associated with modern survey techniques. There is evidence that early diagenesis caused the preferential degradation of labile aquatic lipids and that the degradation of terrestrial lipids was more severe when subjected to complex horizontal–vertical transportation processes associated with deposition, resuspension, and redeposition. These processes may have led to an enhanced terrestrial OM signal in the normal ( n)-alkane and n-alkanol records, which is at odds with, for example, those of the n-fatty acids, hopanoids, steranes, and sterols, which suggest a dominant marine OM source. Furthermore, we conclude that the occurrence of multiple sources, selective diagenesis, and test error has led to the distortion of redox and maturity indicators based on evidence from pristane-to-phytane (Pr/Ph) ratios and sterane/hopane indices in century scale. Overall, the phytol record suggests an increase in productivity after the early 20th century. Correspondingly, the diatom lipid biomarker records (based on C25 highly branched isoprenoid alkenes and C18:1ω9 fatty acids) reveal a fluctuating but overall increasing diatom productivity after the early 20th century, which coincides with a decreased proportion of the contribution from diatoms relative to that of total phytoplankton. This is believed to correspond to natural environmental changes, as well as anthropogenic impact.

Linking optical properties of dissolved organic matter to multiple processes at the coastal plume zone in the East China Sea

2016 ◽  
Vol 18 (10) ◽  
pp. 1316-1324 ◽  
Author(s):  
Yulin Jiang ◽  
Jianfu Zhao ◽  
Penghui Li ◽  
Qinghui Huang
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Optical Properties ◽  
Dissolved Organic Matter ◽  
East China Sea ◽  
Quality Characteristics ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
Multiple Processes

This study investigated the multiple processes at the coastal plume zone by water quality characteristics and dissolved organic matter optical properties.

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