Contribution of photosynthesized carbon to the methane emitted from paddy fields | Zendy

Minoda T. | Zendy; Kimura M. | Zendy

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Contribution of photosynthesized carbon to the methane emitted from paddy fields

Author(s) -

Minoda T.,

Kimura M.

Publication year - 1994

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/94gl01595

Subject(s) - straw , rice straw , methane , environmental science , paddy field , carbon fibers , atmosphere (unit) , environmental chemistry , carbon cycle , chemistry , agronomy , atmospheric sciences , meteorology , ecology , physics , materials science , biology , ecosystem , organic chemistry , composite number , composite material

Emission rates of CH 4 from paddy soil with and without rice straw applications were measured with pot experiments to estimate the contribution of rice straw to total CH 4 emissions during the growing season. The CH 4 derived from rice straw was calculated to be 50.4% of the total emission. 13 CO 2 uptake experiments were carried out three times from Aug. 8 to Sept. 18 to estimate the contribution of photosynthesized carbon to CH 4 emission. The contribution percentages of photosynthesized carbon to the total CH 4 emitted to the atmosphere were 72–110% around Aug. 8, 29–36% around Aug. 30, and 13–17% around Sept. 18, 1993.

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