Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1023/A:1009753923339
Document Shareable Link
Title (Primary) Factors controlling diet patterns of methane emission via rice
Author Wang, B.; Neue, H.U.; Samonte, H.P.
Source Titel Nutrient Cycling in Agroecosystems
Year 1999
Department BOPHY; BOCHE; BOFO
Volume 53
Issue 3
Page From 229
Page To 235
Language englisch
Abstract Methane emissions from flooded rice grown under greenhouse conditions were monitored using a closed chamber technique. The three rice cultivars showed similar diel emission patterns though the amplitudes differed. Variation in emissions (maximum emission rate) from the different cultivars ranged from 0.164–0.241 mg/pot/h at tillering stage, 0.714–2.334 mg/pot/h at heading stage, 0.399–1.393 mg/pot/h at ripening stage. The methane emissions increased in the morning at accelerating rates, reached a maximum in the early afternoon, then decreased rapidly to constant rates during the night. The diel emission pattern was modeled using a Gaussian equation for daytime, and a constant for nocturnal emissions. Applying an Arrhenius equation, more than 90% of the diel variation of methane emissions could be predicted from soil temperature fluctuations. The predictions improved by using a diffusion model based on soil temperature and dissolved methane concentrations in soil solution. Soil temperature and methane concentration in soil solution are the two major factors controlling diel methane emissions.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=8476
Wang, B., Neue, H.U., Samonte, H.P. (1999):
Factors controlling diet patterns of methane emission via rice
Nutr. Cycl. Agroecosyst. 53 (3), 229 - 235 10.1023/A:1009753923339