Dissolved inorganic carbon in coastal acid sulfate landscapes

Jason Kurt Reynolds, Mats Åström, Ben Wilson, Bennett Macdonald

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

![CDATA[An acid sulfate soil landscape was investigated to understand the pattern of dissolved inorganic carbon (DIC). Drainage water was measure in situ for DIC using a novel conversion methodology. Sediments and soils were collected and used in an incubation experiment to induce oxidation. Temporal and spatial variations in DIC and stable isotope (13CDIC) concentration were found to exist between the groundwater and surface water. This demonstrated a hydrologic boundary between the surface water located in the drainage system and the underlying groundwater. Lab-based atmospheric equilibration studies of groundwater showed temporal decreases in pH, Fe(II), alkalinity, and, DIC with an associated increase in 13CDIC when compared to non-acid sulfate impacted waterbodies. The loss of DIC was demonstrated to follow first-order kinetics.]]
Original languageEnglish
Title of host publicationProceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World, Brisbane, Australia, 1-6 August 2010
PublisherAustralian Society of Soil Science Incorporated
Pages5652-5655
Number of pages4
ISBN (Print)9781618391025
Publication statusPublished - 2010
EventWorld Congress of Soil Science -
Duration: 1 Aug 2010 → …

Conference

ConferenceWorld Congress of Soil Science
Period1/08/10 → …

Keywords

  • inorganic compounds
  • carbon
  • acid sulfate soils

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