Journal
ENVIRONMENTAL POLLUTION
Volume 124, Issue 3, Pages 379-388Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0269-7491(03)00049-6
Keywords
dry deposition; gases; particles; forests; parameters; Europe
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Dry deposition of gases and particles to forests is influenced by factors influencing the turbulent transport, such as wind speed, tree height, canopy closure, LAI, etc. as well as by factors influencing surface condition, such as precipitation, relative humidity, global radiation, etc. In this paper, an overview of these factors is given and it is shown which are the most important determining temporal and spatial variation of dry deposition of sodium and sulphur. Furthermore, it is evaluated how well current deposition models are able to describe the temporal and spatial variation in dry deposition. It is concluded that the temporal variation is not modelled well enough, because of limited surface-wetness exchange parameterisations. The influence of forest characteristics are modelled reasonably well, provided enough data describing the forests and the spatial variation in concentration is available. For Europe these data are not available. The means to decrease the atmospheric deposition through forest management is discussed. (C) 2003 Elsevier Science Ltd. All rights reserved.
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