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Production of Recalcitrant Organic Matter under the Influence of Elevated Carbon Dioxide and Temperature

Title
Production of Recalcitrant Organic Matter under the Influence of Elevated Carbon Dioxide and Temperature
Authors
Ki, BominPark, SuyoungChoi, Jung Hyun
Ewha Authors
최정현
SCOPUS Author ID
최정현scopus
Issue Date
2014
Journal Title
WATER ENVIRONMENT RESEARCH
ISSN
1061-4303JCR Link1554-7531JCR Link
Citation
vol. 86, no. 9, pp. 779 - 787
Keywords
dissolved organic carbonrecalcitrant organic matteranaerobic metabolismwetlandsphenolic compounds
Publisher
WATER ENVIRONMENT FEDERATION
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
The effects of elevated CO2 and temperature on the quantity and quality of dissolved organic carbon (DOC) of wetland sediments were investigated by measuring organic matter decomposition rates and phenolic compounds as target recalcitrant organic matter. Mean rates of anaerobic microbial metabolism were consistently higher both in vegetated sediments and in elevated CO2 and temperature, although the differences were not statistically significant (P < 0.05). Concentrations of phenolic compounds in sediments with vegetation are significantly different (P < 0.05) from those in sediments without vegetation. Regarding the biodegradability of the phenolic compounds, vegetated sediments showed higher concentrations of 2-chlorophenol and 2,4-dimethylphenol under elevated CO2 and temperature conditions, which means that more refractory material can be produced through enhanced organic matter degradation by elevated CO2 and temperature. The produced phenolic compounds can be transported to the freshwater ecosystem and influence the recalcitrance of DOC.
DOI
10.2175/106143014X13975035526347
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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