DOI: 10.1016/j.atmosenv.2013.11.001
Scopus记录号: 2-s2.0-84889595162
论文题名: Characterizing CH4 and N2O emissions from an intensive dairy operation in summer and fall in China
作者: Zhu G ; , Ma X ; , Gao Z ; , Ma W ; , Li J ; , Cai Z
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 245
结束页码: 253
语种: 英语
英文关键词: Emission intensity
; Heifer
; Methane
; Milking cow
; Nitrous oxide
Scopus关键词: Dairies
; Global warming
; Methane
; Nitrogen oxides
; Uncertainty analysis
; Collective operations
; Developed countries
; Emission intensity
; Emission measurement
; Global warming potential
; Heifer
; Milking cow
; Nitrous oxide
; Greenhouse gases
; methane
; nitrous oxide
; air quality
; atmospheric pollution
; biogenic emission
; cattle
; dairy farming
; global warming
; greenhouse gas
; manure
; methane
; nitrous oxide
; summer
; air pollution
; anemometer
; article
; caloric intake
; China
; circadian rhythm
; cow
; dairy cattle
; dairy industry
; feeding
; greenhouse effect
; heifer
; intensive dairy operation
; limit of detection
; methane emission
; milk production
; nitrous oxide emission
; precipitation
; priority journal
; seasonal variation
; stocking density
; summer
; temperature
; China
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: Evaluation of the global warming potential of the dairy industry both in China and globally necessitates reliable characterization of CH4 and N2O emissions. However, CH4 and N2O emissions from dairy operations differ with feeds, herd structures and manure management practices, and the lack of N2O and CH4 emission measurements for China, especially for intensive dairy operations, causes substantial uncertainty in accounting for GHGs from dairy operation both in China and globally. In this study, CH4 and N2O emissions during summer to fall period from an intensive feedlot in China were characterized to fill the data gap. The diurnal CH4 emission patterns for milking cows and heifers were driven by the feeding activities and the diurnal N2O patterns by the diurnal changes in temperature. The CH4 emission rates of 397ghead-1d-1 (23.63LCH4kg-1 milk) (in summer) and 279ghead-1d-1 (in fall) for milking cows and heifers accounted for 5.17% and 7.68% of their daily gross energy intakes, whereas the N2O emission rates of 36.7ghead-1d-1 (0.85LN2Okg-1milk) for milking cows and 24.2ghead-1d-1 for heifers accounted for 4.25% and 6.86% of the daily feed N intake. The CH4 conversion factor and CH4 emission intensity in the measurement season for intensive dairy operations in China are lower than those for collective operations in China, and the CH4 emission intensity is similar to those in developed countries. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81055
Appears in Collections: 气候变化事实与影响
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作者单位: College of Resources and Environmental Sciences, Agricultural University of Hebei, 071000 Baoding, China; College of Animal Science and Technology, Agricultural University of Hebei, 071000 Baoding, China; Mechanical and Electric Engineering College, Agricultural University of Hebei, 071000 Baoding, China
Recommended Citation:
Zhu G,, Ma X,, Gao Z,et al. Characterizing CH4 and N2O emissions from an intensive dairy operation in summer and fall in China[J]. Atmospheric Environment,2014-01-01,83