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 |