Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1023/A:1009753923339
Volltext Shareable Link
Titel (primär) Factors controlling diet patterns of methane emission via rice
Autor Wang, B.; Neue, H.U.; Samonte, H.P.
Quelle Nutrient Cycling in Agroecosystems
Erscheinungsjahr 1999
Department BOPHY; BOCHE; BOFO
Band/Volume 53
Heft 3
Seite von 229
Seite bis 235
Sprache 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.
dauerhafte UFZ-Verlinkung 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