English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/72209
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Air-water carbon dioxide fluxes in a Mediterranean wetland

AuthorsMorris, Edward P. ; Flecha, Susana ; Figuerola, Jordi ; Costas, Eduardo; Navarro, Gabriel ; Ruiz Segura, Javier ; Rodríguez-Ros, P. ; Huertas, I. Emma
Keywordscarbon dioxide; air-water flux; wetland; estuarine; ecosystem services; carbon sequestration; biogeochemistry; Donana Natural Area
Issue Date14-Mar-2013
AbstractInland and transitional aquatic systems play an important role in global carbon (C) cycling. Wetlands and floodplains probably account for the majority of these systems, yet their C dynamics are poorly constrained in terms of in-situ data. Air-water CO<sub>2</sub> fluxes in the Mediterranean wetlands of Donaña National Park, SW Spain were examined by measuring alkalinity and pH (along with other physiochemical parameters) in a range of water bodies during 2010-2011. Areal fluxes were calculated and, using remote sensing, an estimate of the contribution of aquatic habitats to gaseous CO<sub>2</sub> transport was derived. Semi-permanent ponds adjacent to the large Guadalquivir estuary acted as mild sinks, whilst temporal wetlands were strong sources of CO<sub>2</sub> (-0.8 and 36.3 mmolCO<sub>2</sub> m<sup>-2</sup> d<sup>-1</sup>). Fluxes in semi-permanent streams and lakes changed seasonally; acting as sources in spring-winter and mild sinks in autumn (16.7 and -1.2 mmolCO<sub>2</sub> m<sup>-2</sup> d<sup>-1</sup>). Overall, nearly all water bodies were net annual sources of CO<sub>2</sub> (5.2 molCO<sub>2</sub> m<sup>-2</sup> y<sup>-1</sup>). Upscaling clarified the overwhelming contribution of seasonal flooding and allochthonous organic matter inputs in determining regional air-water gaseous C transport (13.1 GgC y<sup>-1</sup>).
DescriptionOral presentation given at the 2013 Aquatic Sciences Meeting (ASLO), New Orleans, USA.
Publisher version (URL)http://www.sgmeet.com/aslo/neworleans2013/viewabstract2.asp?AbstractID=10862
Appears in Collections:(ICMAN) Comunicaciones congresos
Files in This Item:
File Description SizeFormat 
Morris_Air-water-carbon-fluxes_ASLO2013_handout.pdf9,1 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.