DOI: 10.1002/grl.50572
论文题名: The effect of carbon-nitrogen coupling on the reduced land carbon sink caused by tropospheric ozone
作者: Kvalevãg M.M. ; Myhre G.
刊名: Geophysical Research Letters
ISSN: 0094-8898
EISSN: 1944-8629
出版年: 2013
卷: 40, 期: 12 起始页码: 3227
结束页码: 3231
语种: 英语
英文关键词: global climate model
; land carbon sink
; nitrogen limitation
; radiative forcing
; tropospheric ozone
Scopus关键词: Carbon sink
; Global climate model
; Nitrogen limitation
; Radiative forcings
; Tropospheric ozone
; Atmospheric radiation
; Carbon
; Carbon dioxide
; Nitrogen
; Ozone
; Troposphere
; biological uptake
; biosphere
; carbon dioxide
; carbon sink
; climate modeling
; growth rate
; nitrogen
; nitrogen cycle
; nutrient limitation
; ozone
; radiative forcing
; terrestrial environment
; troposphere
英文摘要: Tropospheric ozone is known to have a damaging effect on carbon uptake in the terrestrial biosphere. We show that limitations of available nitrogen for sufficient plant growth reduce the negative impact of tropospheric ozone on carbon uptake in plants, leading to a smaller indirect change in radiative forcing than previously calculated. Transient climate simulations between 1900 and 2004 where plant growth is affected by tropospheric ozone have been performed by the National Center for Atmospheric Research Community Land Model with and without a coupling to the nitrogen cycle. When the land model includes nitrogen limitation on plant growth, the negative effect from tropospheric ozone on carbon uptake in plants is reduced by up to a factor of four compared to model simulation without nitrogen limitation. Only 2-5% of the radiative forcing from CO2 between 1900 and 2004 can be attributed to the indirect effect of tropospheric ozone which is a factor of six lower than results from previous studies. Key Points 2-5% of the CO2 RF since 1900 is due to reduced plant growth and tropospheric O3 This indirect RF of tropospheric O3 is 6 times weaker than previously estimated Nitrogen limitation on plant growth in the land model gives a weaker forcing ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880565808&doi=10.1002%2fgrl.50572&partnerID=40&md5=18924fb45eb68cf960ca9f1f8bfeb4ad
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6162
Appears in Collections: 气候减缓与适应
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作者单位: Center for International Climate and Environmental Research, P.O. 1129 Blindern, NO-0318, Oslo, Norway
Recommended Citation:
Kvalevãg M.M.,Myhre G.. The effect of carbon-nitrogen coupling on the reduced land carbon sink caused by tropospheric ozone[J]. Geophysical Research Letters,2013-01-01,40(12).