Composition, abundance and age of total organic carbon in surface sediments from the inner shelf of the East China Sea

Li, Xinxin; Bianchi, Thomas S.; Allison, Mead A.; Chapman, Piers; Mitra, Siddhartha; Zhang, Zhaoru; Yang, Gui‐Peng; Yu, Zhigang

doi:10.1016/j.marchem.2012.10.001

Cited by 99 publications

(83 citation statements)

References 93 publications

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“…9a and c). The evidence in Xing et al (2011) and Li et al (2012) suggests that organic matter in sediments of the ECSS were mainly marine-derived. Therefore, preferential loss of P relative to carbon during organic matter decomposition, which was also supported by the evidence in Meng et al (2014), seems more responsible for the spatial distribution feature of the higher TOC/OP values occurring in most parts of the studied area.…”

Section: Transformation Of Phosphorusmentioning

confidence: 97%

Geochemical forms and seasonal variations of phosphorus in surface sediments of the East China Sea shelf

Zhou

Gao

Yuan

et al. 2016

Journal of Marine Systems

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Geochemical characteristics of phosphorus (P) in the surface sediments of the East China Sea shelf (ECSS) were studied in spring and autumn, 2014. Distributions, seasonal variations, transformations and their influencing factors were discussed. Besides, burial fluxes of P in different seasons were also calculated. Five operationally defined forms of P, namely exchangeable or loosely sorbed P (Ads-P), iron-bound P (Fe-P), authigenic P (Au-P), detrital apatite plus other inorganic P (De-P) and organic P (OP), were obtained using a sequential extraction procedure. Generally, the concentrations of Ads-P, Fe-P, Au-P and OP decreased seaward and the concentrations of De-P increased seaward in both seasons. In spring, the average concentrations of Ads-P, Fe-P, Au-P, De-P and OP were 13.8 ± 5.0, 21.9 ± 7.6, 148.5 ± 44.5, 153.1 ± 55.8 and 91.7 ± 21.5 μg g −1 , respectively. The corresponding concentrations in autumn were 11.4 ± 4.3, 20.0 ± 10.9, 170.4 ± 53.6, 225.6 ± 101.7 and 77.1 ± 33.9 μg g −1 , respectively. The average percentages of P fractions in total P (TP) in spring and autumn were both in the order: De-P N Au-P N OP N Fe-P N Ads-P. The average concentrations of Bio-available P (Bio-P) were 127.4 ± 31.4 μg g −1 in spring and 108.5 ± 47.2 μg g −1 in autumn, accounting for 29.8% ± 7.3% and 21.5% ± 8.2% of corresponding TP, respectively. Seasonal variations of the primary production, hydrodynamic conditions, hypoxia and other environmental conditions were responsible for the seasonal variations of different phosphorus forms. The calculation of burial fluxes reflected that, in most parts of the studied area, TP had relative high burial fluxes in autumn, while Bio-P had relatively high burial fluxes in spring. The burial fluxes of other phosphorus forms also showed different seasonal variations in different parts of the studied area.

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Section: Transformation Of Phosphorusmentioning

confidence: 97%

Geochemical forms and seasonal variations of phosphorus in surface sediments of the East China Sea shelf

Zhou

Gao

Yuan

et al. 2016

Journal of Marine Systems

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“…Moreover, the East China Sea is one of the world's important marginal seas, receiving an average terrestrial sediment discharge of 0.41 Â 10 9 t/yr during the period of 1950-2009 (The Ministry of Water Resources of the People's Republic of China, 2009), as well as 2-5 Â 10 6 t/yr of particulate organic carbon from the Changjiang River Lin et al, 2007). Relatively high BC concentrations have been observed in the sediment samples from the East China Sea (Wang and Li, 2007;Hung et al, 2011;Li et al, 2012), with 60-80% attributed to fossil fuel combustion (Wang and Li, 2007). However, to our knowledge, little work has been undertaken to characterize the sedimentary distribution and fluxes of BC in the region as a whole.…”

Section: Introductionmentioning

confidence: 99%

Distribution and preservation of black carbon in the East China Sea sediments: Perspectives on carbon cycling at continental margins

Huang

Zhang

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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“…6(A), the Σ8 of inner shelf surface sediments in the ECS is higher than that of outer shelf sediments, and the Σ8 in Bohai sediments lies between values from the inner and outer shelf sediments (Li et al, 2012(Li et al, , 2013bWu et al, 2013). The Σ8 of the P4 sediments is higher than of the outer shelf sediments, but comparable with that of inner shelf sediments.…”

Section: Sources Of Terrestrial Materials In P4 Sedimentsmentioning

confidence: 84%

“…6(B) shows C/V and S/V rations in P4 sediments and surface sediments from the ECS and Bohai Sea (Li et al, 2012(Li et al, , 2013aWu et al, 2013). The C/V and S/V ratios of core P4 suggest a mixed lignin phenols source, which is in accordance with surface sediments in the ECS, but very different from the Bohai Sea (Li et al, 2012(Li et al, , 2013aWu et al, 2013). Sediments in the Bohai Sea originate mostly from Yellow River, and the lignin composition reflects the terrestrial organic matter signal from the Yellow River Basin (Li et al, 2013a).…”

Section: Sources Of Terrestrial Materials In P4 Sedimentsmentioning

confidence: 99%

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An 800-year record of terrestrial organic matter from the East China Sea shelf break: Links to climate change and human activity in the Changjiang Basin

Liu

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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Composition, abundance and age of total organic carbon in surface sediments from the inner shelf of the East China Sea

Cited by 99 publications

References 93 publications

Geochemical forms and seasonal variations of phosphorus in surface sediments of the East China Sea shelf

Geochemical forms and seasonal variations of phosphorus in surface sediments of the East China Sea shelf

Distribution and preservation of black carbon in the East China Sea sediments: Perspectives on carbon cycling at continental margins

An 800-year record of terrestrial organic matter from the East China Sea shelf break: Links to climate change and human activity in the Changjiang Basin

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