Seasonal variations in methane flux and [delta][sup 13]CH[sub 4] values for rice paddies in Japan and their implications

Journal Article · Tue Mar 01 04:00:00 EST 1994 · Global Biogeochemical Cycles; (United States)

DOI:https://doi.org/10.1029/93GB03123· OSTI ID:7226552

Tyler, S C; Cicerone, R J ^[1]; Brailsford, G W ^[2]; Yagi, K; Minami, K ^[3]

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1. Univ. of California, Irvine, CA (United States)
2. National Institute of Water and Atmospheric Research, Lower Hutt (New Zealand)
3. National Institute of Agro-Environmental Sciences, Tsukuba (Japan)

An important source of methane to the atmosphere is from rice paddy fields. This paper presents isotopic data and interpretations from two seasons of measurements of rice paddy methane flux from fields located in Japan. Possible causes for the variation in the stable carbon isotopic signal of methane throughout the growing season are suggested. The consequences for developing a global isotopic atmospheric methane budget are also discussed. 54 refs., 3 figs., 2 tabs.

• OSTI ID: 7226552
• Journal Information: Global Biogeochemical Cycles; (United States), Journal Name: Global Biogeochemical Cycles; (United States) Vol. 8:1; ISSN 0886-6236; ISSN GBCYEP
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ALKANES
CARBON 13
CARBON ISOTOPES
CEREALS
CULTIVATION
ECOLOGICAL CONCENTRATION
EMISSION
EVEN-ODD NUCLEI
GRAMINEAE
HYDROCARBONS
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
LILIOPSIDA
MAGNOLIOPHYTA
METHANE
NUCLEI
ORGANIC COMPOUNDS
PLANTS
RICE
SEASONAL VARIATIONS
STABLE ISOTOPES
VARIATIONS