DOI: 10.1002/grl.50209
论文题名: The agricultural history of human-nitrogen interactions as recorded in ice core δ15N-NO3 -
作者: Felix J.D. ; Elliott E.M.
刊名: Geophysical Research Letters
ISSN: 0094-9138
EISSN: 1944-8869
出版年: 2013
卷: 40, 期: 8 起始页码: 1642
结束页码: 1646
语种: 英语
英文关键词: Greenland
; ice core
; isotope
; nitrate
Scopus关键词: Commercial fertilizers
; Fertilizer applications
; Field characterization
; Greenland
; Historical reconstruction
; Ice core
; Nitrification and denitrification
; Precipitation chemistry
; Agriculture
; Air quality
; Eutrophication
; Fertilizers
; Isotopes
; Lasers
; Nitrates
; Nitrogen
; Nitrogen oxides
; Soils
; Ice
; agricultural history
; biogenic emission
; coastal zone
; fertilizer application
; ice core
; isotopic composition
; nitrogen cycle
; nitrogen oxides
; precipitation (chemistry)
; soil pollution
; twentieth century
; Arctic
; Greenland
; United States
英文摘要: The advent and industrialization of the Haber Bosch process in the early twentieth century ushered in a new era of reactive nitrogen distributions on Earth. Since the appearance of the first commercial scale Haber Bosch fertilizer plants, fertilizer application rates have greatly increased in the U.S. While the contributions of fertilizer runoff to eutrophication and anoxic dead zones in coastal regions have been well-documented, the potential influences of increased fertilizer applications on air quality and precipitation chemistry are poorly constrained. Here we combine a 255-year record of precipitation nitrate isotopes preserved in a Greenland ice core, historical reconstructions of fertilizer application rates, and field characterization of the isotopic composition of nitrogen oxides produced biogenically in soils, to provide new constraints on the contributions of biogenic emissions to North American NO x inventories. Our results indicate that increases in twentieth century commercial fertilizer use led to large increases in soil NO, a byproduct released during nitrification and denitrification reactions. These large shifts in soil NO production are evidenced by sharp declines in ice core δ15N-NO3 - values. Further, these results suggest that biogenic NOx emissions are underestimated by two to four fold in the U.S. NOx emission inventories used to construct global reactive nitrogen budgets. These results demonstrate that nitrate isotopes in ice cores, coupled with newly constrained δ15N-NOx values for NOx emission sources, provide a novel means for estimating contemporary and historic contributions from individual NOx emission sources to deposition. Key Points Agricultural advances had a profound impact on soil N cycling and NOx emissions Ice core d15N is a powerful tool for inferring changes in NOx emission sources Earthquake locations and focal mechanisms suggest fault mesh failure. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877973156&doi=10.1002%2fgrl.50209&partnerID=40&md5=ac668dbcf1070116dae6fa62c7e5d9e9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6402
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara Street, Pittsburgh, PA 15260, United States
Recommended Citation:
Felix J.D.,Elliott E.M.. The agricultural history of human-nitrogen interactions as recorded in ice core δ15N-NO3 -[J]. Geophysical Research Letters,2013-01-01,40(8).