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Methane oxidation rates in forest soils and their controlling variables: A review and a case study in Korea

Title
Methane oxidation rates in forest soils and their controlling variables: A review and a case study in Korea
Authors
Jang I.Lee S.Hong J.-H.Kang H.
Ewha Authors
강호정
Issue Date
2006
Journal Title
Ecological Research
ISSN
0912-3814JCR Link
Citation
vol. 21, no. 6, pp. 849 - 854
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Methane is one of the strongest of the greenhouse gases, being 30-fold more radiatively active than carbon dioxide on a molar basis. In addition, its atmospheric concentrations have increased by 1% per year since the Industrial Revolution. As such, the dynamics of methane is of great importance for the prediction of global climatic changes caused by increasing concentrations of greenhouse gases in the atmosphere. One of the most important biological sinks for methane is forest soils, where methanotrophic bacteria oxidize methane to carbon dioxide. Based on data mined from a review of the literature, we determined that the mean methane oxidation rate was 1.90 mg CH 4 m -2 day -1 and that the main variables controlling this rate were soil water content and inorganic nitrogen in the soils. In contrast, the effects of temperature and pH are minimal. In addition to reviewing the literature, we monitored methane oxidation rates in a temperate forest soil in Korea on a monthly basis for a year, using a static chamber method. The mean oxidation rate was 1.96 mg CH 4 m -2 day -1 and was positively correlated with nitrate concentration in the soil. © 2006 The Ecological Society of Japan.
DOI
10.1007/s11284-006-0041-9
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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