DOI: 10.1016/j.atmosenv.2015.02.069
Scopus记录号: 2-s2.0-84925435295
论文题名: Ammonia losses and nitrogen partitioning at a southern High Plains open lot dairy
作者: Todd R ; W ; , Cole N ; A ; , Hagevoort G ; R ; , Casey K ; D ; , Auvermann B ; W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 110 起始页码: 75
结束页码: 83
语种: 英语
英文关键词: Ammonia
; Dairy
; Emissions
; Inverse dispersion analysis
; Milk cows
; Open lot
Scopus关键词: Ammonia
; Atmospheric movements
; Lakes
; Manures
; Nitrogen
; Particulate emissions
; Sewage lagoons
; Ammonia emissions
; Animal agriculture
; Environmental challenges
; Inverse-dispersion
; Milk cow
; Nitrogen partitioning
; Open lot
; Open-path lasers
; Dairies
; ammonia
; agricultural emission
; ammonia
; atmospheric pollution
; cattle
; dairy farming
; dispersion
; partitioning
; wastewater
; agricultural land
; anemometer
; animal housing
; Article
; dairy cattle
; lagoon
; manure
; milk production
; nitrogen balance
; nitrogen partitioning
; nonhuman
; open lot dairy
; priority journal
; summer
; volatilization
; waste water
; Great Plains
; New Mexico
; United States
; Animalia
; 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: Animal agriculture is a significant source of ammonia (NH3 ). Cattle excrete most ingested nitrogen (N); most urinary N is converted to NH3 , volatilized and lost to the atmosphere. Open lot dairies on the southern High Plains are a growing industry and face environmental challenges as well as reporting requirements for NH3 emissions. We quantified NH3 emissions from the open lot and wastewater lagoons of a commercial New Mexico dairy during a nine-day summer campaign. The 3500-cow dairy consisted of open lot, manure-surfaced corrals (22.5ha area). Lactating cows comprised 80% of the herd. A flush system using recycled wastewater intermittently removed manure from feeding alleys to three lagoons (1.8ha area). Open path lasers measured atmospheric NH3 concentration, sonic anemometers characterized turbulence, and inverse dispersion analysis was used to quantify emissions. Ammonia fluxes (15-min) averaged 56 and 37μgm-2s-1 at the open lot and lagoons, respectively. Ammonia emission rate averaged 1061kgd-1 at the open lot and 59kgd-1 at the lagoons; 95% of NH3 was emitted from the open lot. The per capita emission rate of NH3 was 304gcow-1d-1 from the open lot (41% of N intake) and 17gcow-1d-1 from lagoons (2% of N intake). Daily N input at the dairy was 2139kgd-1, with 43, 36, 19 and 2% of the N partitioned to NH3 emission, manure/lagoons, milk, and cows, respectively. © 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81764
Appears in Collections: 气候变化事实与影响
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作者单位: USDA -ARS Conservation and Production Research Laboratory, Bushland, TX, United States; New Mexico State University, Clovis, NM, United States; Texas A and M AgriLife Research, Amarillo, TX, United States
Recommended Citation:
Todd R,W,, Cole N,et al. Ammonia losses and nitrogen partitioning at a southern High Plains open lot dairy[J]. Atmospheric Environment,2015-01-01,110