DOI: 10.1016/j.atmosenv.2014.08.034
Scopus记录号: 2-s2.0-84906258274
论文题名: Determination of atmospheric nitrogen deposition to a semi-natural peat bog site in an intensively managed agricultural landscape
作者: Hurkuck M ; , Brümmer C ; , Mohr K ; , Grünhage L ; , Flessa H ; , Kutsch W ; L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97 起始页码: 296
结束页码: 309
语种: 英语
英文关键词: Ammonia
; Critical load
; Denuder filter samplers
; Intensive agriculture
; Nitrogen deposition
; Ombrotrophic bog
Scopus关键词: Agriculture
; Ammonia
; Ecosystems
; Nitrogen
; Plants (botany)
; Agricultural landscapes
; Atmospheric nitrogen deposition
; Critical load
; Denuders
; Nitrogen deposition
; Ombrotrophic bog
; Plant species composition
; Plant species diversity
; Peat bogs
; Wetlands
; Ammonia
; ammonia
; nitrogen
; agricultural land
; atmospheric deposition
; environmental impact assessment
; environmental management
; land use
; nitrogen
; peatland
; plant community
; primary production
; ammonia
; intensive agriculture
; livestock farming
; ombrotrophic environment
; sampler
; species diversity
; terrestrial ecosystem
; agricultural land
; animal husbandry
; article
; atmospheric deposition
; concentration (parameters)
; dry deposition
; ecosystem
; Germany
; hydrology
; livestock
; nitrogen deposition
; nonhuman
; nutrient
; peatland
; priority journal
; quantitative analysis
; seasonal variation
; species composition
; species diversity
; agricultural management
; ambient air
; Article
; controlled study
; filter
; KAPS denuder filter
; plant
; uncertainty
; Germany
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: Rising levels of atmospheric nitrogen (N) deposition have been found to affect the primary productivity and species composition of most terrestrial ecosystems. Highly vulnerable ecosystems such as nutrient-poor bogs are expected to respond to increasing N input rates with a decrease in plant species diversity. Our study site - a moderately drained raised bog and one of only very few remaining protected peatland areas in Northwestern Germany - is surrounded by highly fertilised agricultural land and intensive livestock production. We quantified the annual deposition of atmospheric N over a period of two years. Dry deposition rates of different N species and their reactants were calculated from day and night-time concentrations measured by a KAPS denuder filter system. Dry N deposition amounted to 10.9±1.0kgNha-1yr-1 (year 1) and 10.5±1.0kgNha-1yr-1 (year 2). More than 80% of total deposited N was attributed to ammonia (NH3). A strong seasonality in NH3 concentrations and depositions could be observed. Day and night-time concentrations and depositions, however, did not differ significantly. Total N deposition including bulk N deposition resulted in about 25kgNha-1yr-1. Our results suggest that the intensive agricultural land management of surrounding areas and strongly emitting animal husbandry lead to N inputs into the protected peatland area that exceed the ecosystem's specific critical load up to fivefold. This gives rise to the assumption that a further shift in plant species composition with a subsequent alteration of the local hydrological regime can be expected. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81017
Appears in Collections: 气候变化事实与影响
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作者单位: Thünen Institute of Climate-Smart Agriculture, Federal Research Institute for Rural Areas, Forestry and Fisheries, Bundesallee 50, 38116 Braunschweig, Germany; Landwirtschaftskammer Niedersachsen, Mars-la-Tour Str. 1-13, 26121 Oldenburg, Germany; Justus-Liebig-University of Gießen, Department of Plant Ecology, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
Recommended Citation:
Hurkuck M,, Brümmer C,, Mohr K,et al. Determination of atmospheric nitrogen deposition to a semi-natural peat bog site in an intensively managed agricultural landscape[J]. Atmospheric Environment,2014-01-01,97