全球智库信息集成服务系统(G2TT): Atmospheric deposition of sulfur, nitrogen and basic cations onto European forests: observations and model calculations.

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来源类型	Book Section
DOI	10.1007/978-3-642-83994-8_9
	Atmospheric deposition of sulfur, nitrogen and basic cations onto European forests: observations and model calculations.
	Ivens W; Tank AK; Kauppi P; Alcamo J; Kämäri, J.; Brakke, D.F.; Jenkins, A.; Norton, S.A.; Wright, R.F.
发表日期	1989
出处	Regional Acidification Models. Eds. Kämäri, J. , Brakke, D.F. , Jenkins, A. , Norton, S.A. & Wright, R.F. , pp. 103-111 Germany: Springer Berlin Heidelberg. ISBN 978-3-642-83994-8 DOI: 10.1007/978-3-642-83994-8_9 .
出版年	1989
语种	英语
摘要	Measurements of sulfur and nitrogen deposition by means of the throughfall method are compared with model estimates. The sulfur model appears to estimate deposition to deciduous forests very well, but underestimates deposition to conifers by 30 to 40%. The NH4-N deposition to forest is underestimated by the applied model. The model predictions of NO3-N deposition do not show any bias against observations, but are not better correlated with observations than NH4 calculations. Reduced nitrogen compounds are the dominant nitrogen form in throughfall in ammonia polluted areas and contribute up to 50% of the total nitrogen deposition in other areas. Deposition of alkaline material to forests is estimated by applying different methods. Basic cation deposition neutralizes about 31% of the acid sulfur deposition to forest, on the average. Because of the large spatial variability of base cation deposition, it is recommended to develop a model for atmospheric transport and deposition of calcium- and magnesium-bearing particles.
主题	Environment Program (ENV)
URL	http://pure.iiasa.ac.at/id/eprint/12894/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/133198
推荐引用方式 GB/T 7714	Ivens W,Tank AK,Kauppi P,et al. Atmospheric deposition of sulfur, nitrogen and basic cations onto European forests: observations and model calculations.. 1989.