DOI: 10.1016/j.atmosenv.2014.09.036
Scopus记录号: 2-s2.0-84907229828
论文题名: A micrometeorological technique for detecting small differences in methane emissions from two groups of cattle
作者: Laubach J ; , Grover S ; P ; P ; , Pinares-Patin&tild ; o C ; S ; , Molano G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 98 起始页码: 599
结束页码: 606
语种: 英语
英文关键词: Atmospheric surface layer
; Backward-Lagrangian stochastic model
; Cattle CH4 emissions
; Emissions mitigation
; Gas dispersion
Scopus关键词: Atmospheric surface layers
; Emissions mitigation
; Gas dispersion
; Methane emissions
; Micrometeorological techniques
; methane
; agricultural emission
; boundary layer
; cattle
; methane
; micrometeorology
; surface layer
; turbulence
; air pollution
; air sampling
; Article
; atmospheric dispersion
; cattle
; meteorology
; micrometeorological technique
; nonhuman
; stochastic model
; Bos
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Potential approaches for reducing enteric methane (CH4) emissions from cattle will require verification of their efficacy at the paddock scale. We designed a micrometeorological approach to compare emissions from two groups of grazing cattle. The approach consists of measuring line-averaged CH4 mole fractions upwind and downwind of each group and using a backward-Lagrangian stochastic model to compute CH4 emission rates from the observed mole fractions, in combination with turbulence statistics measured by a sonic anemometer. With careful screening for suitable wind conditions, a difference of 10% in group emission rates could be detected. This result was corroborated by simultaneous measurements of daily CH4 emissions from each animal with the sulfur hexafluoride (SF6) tracer-ratio technique. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80614
Appears in Collections: 气候变化事实与影响
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作者单位: Landcare Research, PO Box 69040, Lincoln, New Zealand; AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North, New Zealand; Department of Agricultural Sciences, La Trobe University, 5 Ring Rd, Bundoora, VIC, Australia; CSIRO Black Mountain Laboratories, Clunies Ross Street, Acton, ACT, Australia
Recommended Citation:
Laubach J,, Grover S,P,et al. A micrometeorological technique for detecting small differences in methane emissions from two groups of cattle[J]. Atmospheric Environment,2014-01-01,98