Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/45454
DC FieldValueLanguage
dc.contributor.authorTseng, K.H.en_US
dc.contributor.author莊秉潔zh_TW
dc.contributor.authorTsai, J.L.en_US
dc.contributor.authorAlagesan, A.en_US
dc.contributor.authorTsuang, B.J.en_US
dc.contributor.authorYao, M.H.en_US
dc.contributor.authorKuo, P.H.en_US
dc.date2010zh_TW
dc.date.accessioned2014-06-06T08:15:05Z-
dc.date.available2014-06-06T08:15:05Z-
dc.identifier.issn0168-1923zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/45454-
dc.description.abstractA field campaign was undertaken over a rice paddy in Central Taiwan to investigate the flux of CH(4) through the flux-gradient method. During the campaign period, the average observed concentrations of CH(4) during the campaign period at the lower height (22.2 m above ground level, agl) and upper height (27.5 m agl) were around 2.04 ppm and 2.01 ppm, respectively. It was noticed that the profile concentration of CH(4) was lower during day time when compared to night time. However, the flux of CH(4) was observed to be higher during the day time than during night hours. In order to understand the relationship between the influences of meteorological variables on the flux of CH(4), six meteorological variables were studied. It was observed that soil heat flux has a linear positive correlation with the flux of CH(4). During the study period, the maturity stage of rice paddy, the rice paddy ecosystem was behaving as sources of CH(4) and CO(2). Over a 100-year time frame, the global warming potential (GWP) fluxes of CH(4) and CO(2) observed at this study site were 0.16 and 0.71 mu mol CO(2) equivalents m(-2) s(-1), respectively. The total GWP flux (CH(4) and CO(2)) was 0.86 mu mol CO(2) equivalents m(-2) s(-1) in which CH(4) and CO(2) contribute 18% and 82%, respectively. (C) 2010 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationAgricultural and Forest Meteorologyen_US
dc.relation.ispartofseriesAgricultural and Forest Meteorology, Volume 150, Issue 6, Page(s) 852-859.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.agrformet.2010.04.007en_US
dc.subjectMethane fluxen_US
dc.subjectEddy covarianceen_US
dc.subjectFlux-gradienten_US
dc.subjectAerodynamic conductanceen_US
dc.subjectRice paddyen_US
dc.subjectnitrous-oxide emissionsen_US
dc.subjecttunable diode-laseren_US
dc.subjectseasonal-variationen_US
dc.subjectpaddyen_US
dc.subjectfielden_US
dc.subjectmicrometeorological methodsen_US
dc.subjectfertilizer applicationen_US
dc.subjectsurfaceen_US
dc.subjecttemperatureen_US
dc.subjectwateren_US
dc.subjectsoilen_US
dc.titleDetermination of methane and carbon dioxide fluxes during the rice maturity period in Taiwan by combining profile and eddy covariance measurementsen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/j.agrformet.2010.04.007zh_TW
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
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