Modelling nitrogen deposition: dry deposition velocities on various land-use types in Switzerland
نویسندگان
چکیده
منابع مشابه
Land Use Specific Ammonia Deposition Velocities: a Review of Recent Studies (2004–2013)
Land use specific deposition velocities of atmospheric trace gases and aerosols-particularly of reactive nitrogen compounds-are a fundamental input variable for a variety of deposition models. Although the concept is known to have shortcomings-especially with regard to bi-directional exchange-the often limited availability of concentration data and meteorological input variables make it a valua...
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The conditional time averaged gradient method was used to measure air-surface exchange of nitrogen and sulphur compounds at a semi-alpine site in Southern Norway. Dry deposition velocities were then obtained from the bi-weekly concentration gradient measurements. Annual deposition velocities were found to be 1.4, 11.8 and 4.0 mm s(-1) for NH3, HNO3 and SO2, respectively, if all data were includ...
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The interaction between landuse change, nitrogen deposition, water recharge and carbon sequestration was investigated in the EU 5th Framework Programme project called AFFOREST. An important aspect of the project was the development of the AFFOREST spatial Decision Support System, designed to look at these issues simultaneously. The development of the nitrogen deposition module is described in t...
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Most of the earth’s biodiversity is found in (semi-)natural ecosystems, both in aquatic and terrestrial habitats. Human activities pose a number of threats to the structure and functioning of these ecosystems, and thus to the natural variety of plant and animal species. One of the major threats is the increase in airborne nitrogen pollution (NOx and NHy) in recent decades. Nitrogen is the limit...
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We added the stable isotope (15)N in the form of ((15)NH4)2SO4 and K(15)NO3 to forest ecosystems in eastern China under two different N deposition levels to study the fate of the different forms of deposited N. Prior to the addition of the (15)N tracers, the natural (15)N abundance ranging from -3.4‰ to +10.9‰ in the forest under heavy N deposition at Dinghushan (DHS), and from -3.92‰ to +7.25‰...
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ژورنال
عنوان ژورنال: International Journal of Environment and Pollution
سال: 2018
ISSN: 0957-4352,1741-5101
DOI: 10.1504/ijep.2018.099159