Dissolved Organic Carbon in Coastal Waters: Global Patterns, Stocks and Environmental Physical Controls

被引：1

作者：

Lonborg, Christian ^{[1
]}

Fuentes-Santos, Isabel ^{[2
]}

Carreira, Catia ^{[3
]}

Amaral, Valentina ^{[4
]}

Aristegui, Javier ^{[5
]}

Bhadury, Punyasloke ^{[6
,7
]}

Bif, Mariana Bernardi ^{[8
,9
]}

Calleja, Maria Ll. ^{[10
]}

Chen, Qi ^{[11
,12
]}

Cotovicz, Luiz C. ^{[13
]}

Cozzi, Stefano ^{[14
]}

Eyre, Bradley D. ^{[15
]}

Garcia-Martin, E. Elena ^{[16
]}

Giani, Michele ^{[17
,18
]}

Goncalves-Araujo, Rafael ^{[19
]}

Gruber, Renee ^{[20
]}

Hansell, Dennis A. ^{[8
]}

Holding, Johnna M. ^{[21
]}

Hunter, William ^{[22
]}

Ibanhez, J. Severino P. ^{[2
]}

Ibello, Valeria ^{[23
,24
]}

Kowalczuk, Piotr ^{[25
]}

Maggioni, Federica ^{[26
]}

Magni, Paolo ^{[27
]}

Martin, Patrick ^{[28
]}

Mccallister, S. Leigh ^{[29
]}

Moran, Xose Anxelu G. ^{[30
,31
]}

Oakes, Joanne M. ^{[15
]}

Osterholz, Helena ^{[32
]}

Park, Hyekyung ^{[33
]}

Rueda-Roa, Digna ^{[34
]}

Shan, Jiang ^{[35
]}

Teira, Eva ^{[36
]}

Ward, Nicholas ^{[37
]}

Yamashita, Youhei ^{[38
]}

Yang, Liyang ^{[39
]}

Zheng, Qiang ^{[11
,12
]}

alvarez-Salgado, Xose Anton ^{[2
]}

机构：

[1] Aarhus Univ, Dept Ecosci, Sec Marine Divers & Expt Ecol, Roskilde, Denmark

[2] Inst Invest Marinas CSIC, Vigo, Spain

[3] Univ Aveiro, Ctr Environm & Marine Studies CESAM, Aveiro, Portugal

[4] Univ Republ, Ctr Univ Reg Este, Dept Interdisciplinario Sistemas Costero Marinos, Rocha, Uruguay

[5] Univ Las Palmas Gran Canaria, Inst Oceanog & Cambio Global IOCAG, Las Palmas Gran Canaria, Spain

[6] Indian Inst Sci Educ & Res Kolkata, Kolkata, India

[7] UCSI Univ, Fac Appl Sci, Kuala Lumpur Campus, Kuala Lumpur, Malaysia

[8] Univ Miami, Rosenstiel Sch Marine Atmospher & Earth Sci, Miami, FL 33136 USA

[9] Monterey Bay Aquarium Res Inst, Moss Landing, CA USA

[10] Mediterranean Inst Adv Studies CSIC UIB, Esporles, Spain

[11] Xiamen Univ, Inst Marine Microbes & Ecospheres, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen, Peoples R China

[12] Xiamen Univ, Fujian Key Lab Marine Carbon Sequestrat, Xiamen, Peoples R China

[13] Univ Fed Parana, Ctr Estudos Mar, Pontal Do Parana, Parana, Brazil

[14] Ist Sci Marine, CNR, ISMAR, I-34123 Trieste, Italy

[15] Southern Cross Univ, Fac Sci & Engn, Ctr Coastal Biogeochem, Lismore, NSW, Australia

[16] Natl Oceanog Ctr, Southampton, Hampshire, England

[17] Natl Inst Oceanog & Appl Geophys OGS, Trieste, Italy

[18] Azienda Osped, Strada Madonna Marina 500, I-30015 Chioggia, VE, Italy

[19] Tech Univ Denmark, Natl Inst Aquat Resources, DK-2800 KGS Lyngby, Denmark

[20] Australian Inst Marine Sci, Townsville, Qld, Australia

[21] Aarhus Univ, Dept Ecosci, Aarhus, Denmark

[22] Agrifood & Biosci Inst, Fisheries & Aquat Ecosyst Branch, Belfast, North Ireland

[23] Ist Sci Marine CNR ISMAR, Consiglio Nazl Ric, Rome, Italy

[24] Middle East Tech Univ, Inst Marine Sci, Mersin, Turkiye

[25] Polish Acad Sci, Inst Oceanol, Remote Sensing Lab, Sopot, Poland

[26] Univ New Caledonia, ISEA, F-98800 Noumea, New Caledonia, France

[27] Consiglio Nazl Ric IAS CNR, Ist Studio Impatti Antropicie Sostenibil Ambiente, Oristano, Italy

[28] Nanyang Technol Univ, Asian Sch Environm, Singapore, Singapore

[29] Virginia Commonwealth Univ, Dept Biol, Richmond, VA 23284 USA

[30] King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia

[31] Inst Espanol Oceanog, Ctr Oceanog Gijon Xixon, Gijon Xixon 33212, Spain

[32] Leibniz Inst Balt Sea Res Warnemuende, Rostock, Germany

[33] Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea

[34] Univ 11 South Florida, Coll Marine Sci, St Petersburg, FL USA

[35] East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China

[36] IVI Vigo, Res Adm, Vigo, Spain

[37] Pacific Northwest Natl Lab, Marine & Coastal Res Lab, Sequim, WA 98382 USA

[38] Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Hokkaido, Japan

[39] Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou, Peoples R China

来源：

GLOBAL BIOGEOCHEMICAL CYCLES | 2025年 / 39卷 / 05期

基金：

美国国家科学基金会; 澳大利亚研究理事会; 英国自然环境研究理事会;

关键词：

dissolved organic carbon (DOC); regional; seasonal; carbon stocks; environmental drivers; coastal ocean; MATTER; NITROGEN; OCEAN; PHYTOPLANKTON; VARIABILITY; DYNAMICS; OFFSHORE; BIOGEOCHEMISTRY; TRANSFORMATION; DISTRIBUTIONS;

D O I：

10.1029/2024GB008407

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dissolved organic carbon (DOC) in coastal waters is integral to biogeochemical cycling, but global and regional drivers of DOC are still uncertain. In this study we explored spatial and temporal differences in DOC concentrations and stocks across the global coastal ocean, and how these relate to temperature and salinity. We estimated a global median coastal DOC stock of 3.15 Pg C (interquartile range (IQR) = 0.85 Pg C), with median DOC concentrations being 2.2 times higher than in open ocean surface waters. Globally and seasonally, salinity was the main driver of DOC with concentrations correlated negatively with salinity, without a clear relationship to temperature. DOC concentrations and stocks varied with region and season and this pattern is likely driven by riverine inputs of DOC and nutrients that stimulate coastal phytoplankton production. Temporally, high DOC concentrations occurred mainly in months with high freshwater input, with some exceptions such as in Eastern Boundary Current margins where peaks are related to primary production stimulated by nutrients upwelled from the adjacent ocean. No spatial trend between DOC and temperature was apparent, but many regions (19 out of 25) had aligned peaks of seasonal temperature and DOC, related to increased phytoplankton production and vertical stratification at high temperatures. Links of coastal DOC with salinity and temperature highlight the potential for anthropogenic impacts to alter coastal DOC concentration and composition, and thereby ecosystem status.

引用

页数：20

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