干旱区生态环境知识资源中心(Arid): Global NO and HONO emissions of biological soil crusts estimated by a process-based non-vascular vegetation model

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DOI	10.5194/bg-16-2003-2019
	Global NO and HONO emissions of biological soil crusts estimated by a process-based non-vascular vegetation model
	Porada, Philipp 1,2; Tamm, Alexandra 2; Raggio, Jose 3; Cheng, Yafang 2; Kleidon, Axel 4; Poeschl, Ulrich 2; Weber, Bettina 2,5
通讯作者	Porada, Philipp
来源期刊	BIOGEOSCIENCES
ISSN	1726-4170
EISSN	1726-4189
出版年	2019
卷号	16 期号:9 页码:2003-2031
英文摘要	The reactive trace gases nitric oxide (NO) and nitrous acid (HONO) are crucial for chemical processes in the atmosphere, including the formation of ozone and OH radicals, oxidation of pollutants, and atmospheric self-cleaning. Recently, empirical studies have shown that biological soil crusts are able to emit large amounts of NO and HONO, and they may therefore play an important role in the global budget of these trace gases. However, the upscaling of local estimates to the global scale is subject to large uncertainties, due to unknown spatial distribution of crust types and their dynamic metabolic activity. Here, we perform an alternative estimate of global NO and HONO emissions by biological soil crusts, using a process-based modelling approach to these organisms, combined with global data sets of climate and land cover. We thereby consider that NO and HONO are emitted in strongly different proportions, depending on the type of crust and their dynamic activity, and we provide a first estimate of the global distribution of four different crust types. Based on this, we estimate global total values of 1.04 Tg yr(-1) NO-N and 0.69 Tg yr(-1) HONO-N released by biological soil crusts. This corresponds to around 20% of global emissions of these trace gases from natural ecosystems. Due to the low number of observations on NO and HONO emissions suitable to validate the model, our estimates are still relatively uncertain. However, they are consistent with the amount estimated by the empirical approach, which confirms that biological soil crusts are likely to have a strong impact on global atmospheric chemistry via emissions of NO and HONO.
类型	Article
语种	英语
国家	Germany ; Spain ; Austria
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000468064600001
WOS关键词	NET PRIMARY PRODUCTIVITY ; HILLY LOESS PLATEAU ; MOJAVE DESERT ; SPATIAL-DISTRIBUTION ; NITROUS-OXIDE ; SUCCULENT KAROO ; INNER-MONGOLIA ; CARBON ; LICHENS ; BRYOPHYTES
WOS类目	Ecology ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214608
作者单位	1.Univ Potsdam, Plant Ecol & Nat Conservat, Muhlenberg 3, D-14476 Potsdam, Germany; 2.Max Planck Inst Chem, POB 3060, D-55020 Mainz, Germany; 3.Univ Complutense Madrid, Fac Farm, Dept Biol Vegetal 2, Madrid, Spain; 4.Max Planck Inst Biogeochem, POB 10 01 64, D-07701 Jena, Germany; 5.Karl Franzens Univ Graz, Inst Plant Sci, Holteigasse 6, A-8010 Graz, Austria
推荐引用方式 GB/T 7714	Porada, Philipp,Tamm, Alexandra,Raggio, Jose,et al. Global NO and HONO emissions of biological soil crusts estimated by a process-based non-vascular vegetation model[J],2019,16(9):2003-2031.
APA	Porada, Philipp.,Tamm, Alexandra.,Raggio, Jose.,Cheng, Yafang.,Kleidon, Axel.,...&Weber, Bettina.(2019).Global NO and HONO emissions of biological soil crusts estimated by a process-based non-vascular vegetation model.BIOGEOSCIENCES,16(9),2003-2031.
MLA	Porada, Philipp,et al."Global NO and HONO emissions of biological soil crusts estimated by a process-based non-vascular vegetation model".BIOGEOSCIENCES 16.9(2019):2003-2031.