Biogeochemistry and the Carbon Reservoir

Zhao, Meixun; Wang, Pinxian; Tian, Jie; Li, Jianru

doi:10.1007/978-1-4020-9745-4_7

Cited by 9 publications

(8 citation statements)

References 109 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, marine OM appears to be the dominant source of amino acids in these NSCS sediments. Previous studies in the South China Sea reported primary production was 406 mg C m −2 d −1 (Liu et al, 2007), and it appears N99% of the carbon is degraded/remineralized before burial in sediments (Zhao et al, 2009). The THAA (%OC) values ranged from 4.9 to 19.4% in NSCS sediments and were in the range (12 ± 10%) reported for ocean margin sediments (Keil et al, 2000), with the highest value obtained at JJW79 (19.4%).…”

Section: Diagenesis Of Sedimentary Om In Nscsmentioning

confidence: 98%

“…1; e.g., Sun et al, 1999). Surface water circulates cyclonically during the northeast monsoon (from November to March) and anti-cyclonically during the southwest monsoon (from June to September; Zhao et al, 2009). The shelf water in the NSCS exchanges with the East China Sea via a coastal current, and the western Pacific Ocean water enters the South China Sea through the Luzon Strait and flows along the slope (Higginson et al, 2003).…”

Section: Study Areamentioning

confidence: 99%

“…The amino acid components in NSCS sediments are extensively degraded as indicated by the low DI values, suggesting marine OM is remineralized before burial. The occurrence of high dissolved oxygen concentrations in deep water of the SCS also enhances remineralization rate of sinking marine particles (Zhao et al, 2009). As a result, marine OM buried in the SCS sediments presumably accounts for only 0.1-0.2% of primary production (Zhao et al, 2009), which is lower than the estimate (b 1.3%) for global continental margins by Burdige (2005).…”

mentioning

confidence: 93%

“…However, sediment accumulation rates are 1.65 cm/year in the Pearl River estuary (Ye et al, 2012), and 0.29, 0.062, and 0.011 cm/year in the NSCS inner shelf, outer shelf, and slope (Zhao et al, 2009). This indicates that the buried OM in the 0 to 5 cm depth interval represents years to centuries of sediment accumulation, during which time physical processes and bioturbation will thoroughly mix the upper layers of the sediments.…”

mentioning

confidence: 96%

“…The occurrence of high dissolved oxygen concentrations in deep water of the SCS also enhances remineralization rate of sinking marine particles (Zhao et al, 2009). As a result, marine OM buried in the SCS sediments presumably accounts for only 0.1-0.2% of primary production (Zhao et al, 2009), which is lower than the estimate (b 1.3%) for global continental margins by Burdige (2005). In addition, the SCS has relatively low primary production (406 mg C m − 2 d −1 ; Liu et al, 2007), implying a high remineralization rate of marine OM before burial.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Sources, distributions, and early diagenesis of sedimentary organic matter in the Pearl River region of the South China Sea

Zhang

Kaiser

et al. 2014

Marine Chemistry

View full text Add to dashboard Cite

Section: Diagenesis Of Sedimentary Om In Nscsmentioning

confidence: 98%

Section: Study Areamentioning

confidence: 99%

mentioning

confidence: 93%

mentioning

confidence: 96%

mentioning

confidence: 99%

See 3 more Smart Citations

Sources, distributions, and early diagenesis of sedimentary organic matter in the Pearl River region of the South China Sea

Zhang

Kaiser

et al. 2014

Marine Chemistry

View full text Add to dashboard Cite

Dynamics of primary productivity in the northern South China Sea over the past 24,000 years

Zhang

Liu

Jin

et al. 2016

Geochem Geophys Geosyst

View full text Add to dashboard Cite

In this study, paleoproductivity on millennial scales was precisely reconstructed from core MD12‐3428cq in the northern South China Sea (SCS) over the past 24 kyr, based on a transfer function derived from the strong exponential negative correlation between relative abundance of Florisphaera profunda (%FP) in core top sediments and basin‐wide satellite‐based primary productivity (PP) in the SCS. To detect the potential driving mechanisms of PP, correlation analyses were carried out among our PP records and other paleoenvironment parameters. PP peaked during 18–15 ka in parallel with the strong East Asian Winter Monsoon (EAWM). From 15 ka to the early Holocene, a decrease in PP coincided with sea level progradation and weakening of EAWM, which ultimately reduced fluvial nutrient levels and wind‐driven upper water column mixing. Since the middle Holocene, gradually more frequent El Niño‐Southern Oscillation (ENSO) events have taken place, further decreasing PP by injecting oligotrophic Kuroshio water masses into the northern SCS. Associated findings conclusively indicated that the main controlling factors of PP in the northern SCS have shifted from EAWM (glacial) to ENSO (interglacial) over the past 24 kyr.

show abstract

Community Structure of Archaea from Deep-Sea Sediments of the South China Sea

Wang

et al. 2010

Microb Ecol

View full text Add to dashboard Cite

Using the archaeal 16S rRNA gene, we determined the community structures of archaea of subseafloor sediments (∼9-11 m below seafloor) from two geographically distant cores (MD05-2896, south, water depth 1,657 m; MD05-2902, north, water depth 3,697 m) in the South China Sea. Euryarchaeota accounted for 61.4% of total archaeal clone libraries at MD05-2896 and 56.2% at MD05-2902. At both locations, the Euryarchaeota-related sequences were dominated by Marine Benthic Group D, Terrestrial Miscellaneous Eryarchaeotal Group, and South African GoldMine Euryarchaeotal Group; the Crenarchaeota-related sequences were dominated by Marine Benthic Group B, Marine Group I, pSL12, and C3. The community structure showed no significant difference with depth at each location, suggesting the lack of stratification of archaeal populations in the deep-sea marine sediments in the South China Sea. On the other hand, the community structure is significantly different between the two sites, which may be related to geographical difference in the South China Sea.

show abstract

Biogeochemistry and the Carbon Reservoir

Cited by 9 publications

References 109 publications

Sources, distributions, and early diagenesis of sedimentary organic matter in the Pearl River region of the South China Sea

Sources, distributions, and early diagenesis of sedimentary organic matter in the Pearl River region of the South China Sea

Dynamics of primary productivity in the northern South China Sea over the past 24,000 years

Community Structure of Archaea from Deep-Sea Sediments of the South China Sea

Contact Info

Product

Resources

About