CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary

Xuegang Li; Jinming Song; Huamao Yuan; Ning Li; Liqin Duan; Baoxiao Qu

doi:10.1007/s00343-014-3282-4

Your Location：

Home >

Browse articles >

CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary

OriginalPaper | Updated：2023-05-16

- CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary
- CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary
- 海洋湖沼学报（英文） 2015年33卷第1期页码：222-232
- Affiliations：
  
  Institute of Oceanography Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA05030402), the National Natural Science Foundation of China (Nos. U1406403, 41121064, 41376092), and the Public Science and Technology Research Funds Projects of Ocean (No. 200905012-9)
- DOI：10.1007/s00343-014-3282-4
  中图分类号：
- 网络首发：2015-01-07，
  
  纸质出版：2015
- Accepted：
Scan QR Code
CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary[J]. 海洋湖沼学报（英文）, 2015,33(1):222-232.

Li, X., Song, J., Yuan, H. et al. CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary., Chin. J. Ocean. Limnol. 33, 222–232 (2015). https://doi.org/10.1007/s00343-014-3282-4
CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary[J]. 海洋湖沼学报（英文）, 2015,33(1):222-232. DOI： 10.1007/s00343-014-3282-4.

Li, X., Song, J., Yuan, H. et al. CO2 flux and seasonal variability in the turbidity maximum zone and surrounding area in the Changjiang River estuary., Chin. J. Ocean. Limnol. 33, 222–232 (2015). https://doi.org/10.1007/s00343-014-3282-4 DOI：

摘要

Abstract

The turbidity maximum zone (TMZ) is one of the most important regions in an estuary. However

the high concentration of suspended material makes it difficult to measure the partial pressure of CO2 (pCO2) in these regions. Therefore

very little data is available on the pCO2 levels in TMZs. To relatively accurately evaluate the CO2 flux in an example estuary

we studied the TMZ and surrounding area in the Changjiang (Yangtze) River estuary. From seasonal cruises during February

August

November 2010

and May 2012

the pCO2 in the TMZ and surrounding area was calculated from pH and total alkalinity (TA) measured in situ

from which the CO2 flux was calculated. Overall

the TMZ and surrounding area acted as a source of atmosphere CO2 in February and November

and as a sink in May and August. The average FCO2 was −9

−16

and 5 mmol/(m2·d) in May

August

November

and February

respectively. The TMZ’s role as a source or sink of atmosphere CO2 was quite different to the outer estuary. In the TMZ and surrounding area

suspended matter

phytoplankton

and pH were the main factors controlling the FCO2

but here the influence of temperature

salinity

and total alkalinity on the FCO2 was weak. Organic carbon decomposition in suspended matter was the main reason for the region acting as a CO2 source in winter

and phytoplankton production was the main reason the region was a CO2 sink in summer.

关键词

Keywords

references

Abril G, Commarieu M V, Sottolichio A, Bretel P, Guerin F. 2009. Turbidity limits gas exchange in a large macrotidal estuary. Estuarine Coastal and Shelf Science, 83(3): 342–348.

Borges A V, Dellile B, Frankignoulle M. 2005. Budgeting sinks and sources of CO2 in the coastal ocean: diversity of ecosystems counts. Geophysical Research Letters, 32: L14601.

Borges A V. 2005. Do we have enough pieces of the jigsaw to integrate CO2 fluxes in the coastal ocean? Estuaries, 28: 3–27.

Cai W J, Dai M H, Wang Y C. 2006. Air-sea exchange of carbon dioxide in ocean margins: a province-based synthesis. Geophysical Research Letters, 33(12): L12603.

Cai W J, Wang Y C. 1998. The chemistry, fluxes, and sources of carbon dioxide in the estuarine waters of the Satilla and Altamaha Rivers, Georgia. Limnology Oceanography, 43: 657–668.

Cai W J. 2011. Estuarine and coastal ocean carbon paradox: CO2 sinks or sites of terrestrial carbon incineration? Annual Review of Marine Science, 3: 123–145.

Chen C T A, Borges A V. 2009. Reconciling opposing views on carbon cycling in the coastal ocean: continental shelves as sinks and near-shore ecosystems as sources of atmospheric CO2. Deep-Sea Res earch II, 56: 578–590.

Chen C T A, Huang T H, Chen Y C, Bai Y, He X, Kang Y. 2013. Air-sea exchanges of CO2 in the world’s coastal seas. Biogeosciences, 6 509–6 544.

Chen C T A, Huang T H, Fu Y H, Bai Y, He X Q. 2012. Strong sources of CO2 in upper estuaries become sinks of CO2 in large river plumes. Current Opinion in Environmental Sustainability, 4(2): 179–185.

Chen C T A, Zhai W D, Dai M H. 2008. Riverine input and air-sea CO2 exchanges near the Changjiang (Yangtze River) estuary: status quo and implication on possible future changes in metabolic status. Continental Shelf Research, 28: 1 476–1 482.

Chou W C, Gong G C, Tseng C M, Sheu D D, Hung C C, Chang L P, Wang L W. 2011. The carbonate system in the East China Sea in winter. Marine Chemistry, 123: 44–55.

Frankignoulle M, Borges A V. 2002. Direct and indirect pCO2 measurements in a wide range of pCO2 and salinity values (The Scheldt estuary). Aquatic Geochemistry, 7: 267–273.

Gao X L, Song J M, Li X G, Li N, Yuan H M. 2008. pCO2 and carbon fluxes across sea-air interface in the Changjiang estuary and Hangzhou Bay. Chinese Journal of Oceanology and Limnology, 26(3): 289–295.

Garnier J, Billen G, Even S, Etcheber H, Servais P. 2008. Organic matter dynamics and budgets in the turbidity maximum zone of the Seine estuary (France). Estuarine, Coastal and Shelf Science, 77: 150–162.

Gebhardt A C, Schoster F, Gaye-Haake B, Beeskow B, Rachold V, Unger D, Ittekkot V. 2005. The turbidity maximum zone of the Yenisei River (Siberia) and its impact on organic and inorganic proxies. Estuarine, Coastal and Shelf Science, 65: 61–73.

Gray S E C, DeGrandpre M D, Moore T S, Martz T R, Friederich G E, Johnson K S. 2011. Applications of in situ pH measurements for inorganic carbon calculations. Marine Chemistry, 125: 82–90.

Gu X G, Yuan Qi, Shen H T, Zhou Y Q. 1995. The ecological study on phytoplankton in maximum turbid zone of Changjiang estuary. Journal of Fishery Sciences of China, 2(1): 16–27. (in Chinese with English abstract)

Guo X H, Dai M H, Zhai W D, Cai W J, Chen B S. 2009. CO2 flux and seasonal variability in a large subtropical estuarine system, the Pearl River estuary, China. Journal of Geophysical Research, 114: G03013.

Jiang L Q, Cai W J, Wang Y C. 2008. A comparative study of carbon dioxide degassing in river- and marine-dominated estuaries. Limnology Oceanography, 53(6): 2 603–2 615.

Li J F, Zhang C. 1998. Sediment resuspension and implications for turbidity maximum in the Changjiang estuary. Marine Geology, 148: 117–124.

Li X G, Song J M, Niu L F, Yuan H M, Li N, Gao X L. 2007. Role of the Jiaozhou Bay as a source/sink of CO2 over a seasonal cycle. Scientia Marina, 71(3): 441–450.

Li X G, Song J M, Yuan H M. 2006a. Inorganic carbon of sediments in the Yangtze River estuary and Jiaozhou Bay. Biogeochemistry, 77: 177–197.

Li Y, Zhang L J, Su Z, Wang X L, Pan J M. 2006b. Rapid variation of pCO2 and its influencing factors at the initial mixing stage of freshwater and saltwater in the Changjiang River estuary. Periodical of Ocean University of China, 36(2): 295–298. (in Chinese with English abstract)

Lin J, Wu Y, Zhang J, Zhu Z Y. 2009. The primary study on the influence of the turbidity maximum zone on the organic carbon in the Changjiang. Strait Science, 30(6): 150–158. (in Chinese)

Lisitsyn A P. 1995. The marginal filter of the ocean. Oceanology, 34: 671–682.

Millero F J. 1979. The thermodynamics of the carbonate system in seawater. Geochemica et Cosmochemica Acta, 43: 1 651–1 661.

Pan D A, Shen H T, Mao Z C. 1999. Formation mechanism and features of the turbidity maximum in the Changjiang River estuary. Acta Oecanologica Sinica, 21(4): 62–69. (in Chinese with English abstract)

Shen H T, Pan D A. 2001. Turbidity Maximum in the Changjiang Estuary. China Ocean Press, Beijing, China. p.39. (in Chinese)

Shen Z, Zhou S, Pei S. 2008. Transfer and transport of phosphorus and silica in the turbidity maximum zone of the Changjiang estuary. Estuarine, Coastal and Shelf Science, 78: 481–492.

Song J M. 2009. Biogeochemical Processes of Biogenic Elements in China Marginal Seas. Springer-Verlag GmbH & Zhejiang University Press, Hangzhou, China. 662p.

Song S Q, Sun J, Yu Z M. 2009. Vertical pattern of chlorophyll a in the Yangtze River estuary and its adjacent waters. Chinese Journal of Plant Ecology, 33(2): 369–379. (in Chinese with English abstract)

Sui H B. 2003. Statistical Characteristics of Wave Distribution and Double Peak Spectrum in the Yangtze River Estuary. Dissertation for Master Degree Ocean University of China. (in Chinese)

Weiss R F. 1974. Carbon dioxide in water and seawater: the solubility of a non-ideal gas. Marine Chemistry, 2: 203–215.

Wu J X, Liu J T, Wang X. 2012. Sediment trapping of turbidity maxima in the Changjiang estuary. Marine Geology, 303–306: 14–25.

Wu Y L, Fu Y N N, Zhang Y S, Pu X M, Zhou C X. 2004. Phytoplankton distribution and its relation to the runoff in the Changjiang (Yangzte) estuary. Oceanologia et Limnologia Sinica, 35(3): 246–251. (in Chinese with English abstract)

Zhai W D, Dai M H, Guo X H. 2007. Carbonate system and CO2 degassing fluxes in the inner estuary of Changjiang (Yangtze) River, China. Marine Chemistry, 107: 342–356.

Zhai W D, Dai M H. 2009. On the seasonal variation of air-sea CO2 fluxes in the outer Changjiang (Yangtze River) estuary, East China Sea. Marine Chemistry, 117: 2–10.

Zhang L J, Xue L, Song M Q, Jiang C B. 2010. Distribution of the surface partial pressure of CO2 in the southern Yellow Sea and its controls. Continental Shelf Research, 30: 293–304.

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

A physics-enhanced deep-learning model for estimating turbid shallow water depth from SAR images

High-resolution profiling observation of carbon source dynamics in a mussel farm in the Changjiang River estuary during early autumn

Standing crop and size structure of phytoplankton are strongly regulated by the turbidity maximum in the macrotidal Qiantang River estuary-Hangzhou Bay

Diatom-based dissolved inorganic nitrogen reconstruction in the Changjiang River estuary and its adjacent areas

Impact of estuarine reclamation projects on saltwater intrusion and freshwater resource