DOI: 10.1016/j.atmosenv.2014.02.012
Scopus记录号: 2-s2.0-84896850944
论文题名: Measurement of ammonia emissions from tropical seabird colonies
作者: Riddick S ; N ; , Blackall T ; D ; , Dragosits U ; , Daunt F ; , Braban C ; F ; , Tang Y ; S ; , MacFarlane W ; , Taylor S ; , Wanless S ; , Sutton M ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 35
结束页码: 42
语种: 英语
英文关键词: Atmospheric dispersion modelling
; Coastal nitrogen
; NH3 measurement
; Seabirds
Scopus关键词: Atmospheric dispersion modeling
; Atmospheric dispersion modelling
; Environmental conditions
; High temporal resolution
; Meteorological parameters
; Seabirds
; Thermodynamic process
; Water availability
; Atmospheric movements
; Manures
; Nitrogen
; Nitrogen compounds
; Tropics
; Landforms
; ammonia
; nitrogen
; ammonia
; atmospheric modeling
; atmospheric pollution
; breeding season
; dispersion
; nitrogen
; pollutant transport
; seabird
; tropical environment
; animal experiment
; article
; atmospheric dispersion
; breeding
; circadian rhythm
; controlled study
; environmental factor
; measurement
; meteorology
; nonhuman
; priority journal
; seabird
; seasonal variation
; temperature measurement
; thermodynamics
; tropics
; water availability
; Ascension Island
; Australia
; Coral Sea
; Great Barrier Reef
; Pacific Ocean
; Queensland
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: The excreta (guano) of seabirds at their breeding colonies represents a notable source of ammonia (NH3) emission to the atmosphere, with effects on surrounding ecosystems through nitrogen compounds being thereby transported from sea to land. Previous measurements in temperate UK conditions quantified emission hotspots and allowed preliminary global upscaling. However, thermodynamic processes and water availability limit NH3 formation from guano, which suggests that the proportion of excreted nitrogen that volatilizes as NH3 may potentially be higher at tropical seabird colonies than similar colonies in temperate or sub-polar regions. To investigate such differences, we measured NH3 concentrations and environmental conditions at two tropical seabird colonies during the breeding season: a colony of 20,000tern spp. and noddies on Michaelmas Cay, Great Barrier Reef, and a colony of 200,000Sooty terns on Ascension Island, Atlantic Ocean. At both sites time-integrated NH3 concentrations and meteorological parameters were measured. In addition, at Ascension Island, semi-continuous hourly NH3 concentrations and micrometeorological parameters were measured throughout the campaign. Ammonia emissions, quantified using a backwards Lagrangian atmospheric dispersion model, were estimated at 21.8μgm-2s-1 and 18.9μgm-2s-1 from Michaelmas Cay and Ascension Island, respectively. High temporal resolution NH3 data at Ascension Island estimated peak hourly emissions up to 377μgNH3m2s-1. The estimated percentage fraction of total guano nitrogen volatilized was 67% at Michaelmas Cay and 32% at Ascension Island, with the larger value at the former site attributed to higher water availability. These values are much larger than published data for sub-polar locations, pointing to a substantial climatic dependence on emission of atmospheric NH3 from seabird colonies. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80667
Appears in Collections: 气候变化事实与影响
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作者单位: King's College London, Strand, London, United Kingdom; Centre for Ecology and Hydrology Edinburgh, Bush Estate, Midlothian EH26 0QB, United Kingdom; Cornell University, Ithaca, NY, United States; Queensland Parks and Wildlife Service (Marine Parks), Queensland Department of National Parks, Recreation, Sports and Racing, Brisbane, Australia; University of Cambridge, Cambridge, United Kingdom; JWM Marine Consultancy, Cairns, Australia
Recommended Citation:
Riddick S,N,, Blackall T,et al. Measurement of ammonia emissions from tropical seabird colonies[J]. Atmospheric Environment,2014-01-01,89