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Ozone concentration...
Ozone concentration gradients and wind conditions in Norway spruce (Picea abies) forests in Sweden
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- Karlsson, Per Erik, 1957 (författare)
- IVL Swedish environmental research institute
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- Hansson, Max (författare)
- Karlstads universitet,Avdelningen för biologi
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- Höglund, Hans-Olof (författare)
- Karlstads universitet,Avdelningen för biologi
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- Pleijel, Håkan, 1958 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för växt- och miljövetenskaper,Department of Plant and Environmental Sciences,Gothenburg university
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(creator_code:org_t)
- Elsevier BV, 2006
- 2006
- Engelska.
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Ingår i: Atmospheric Environment. - : Elsevier BV. - 1352-2310 .- 1873-2844. ; 40:9, s. 1610-1618
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Ozone concentrations and wind conditions were measured at different heights above ground inside two different Norway spruce forest canopies in Sweden and compared to those outside or above the forests. Compared to high above ground outside or above the canopies, the ozone concentrations inside the Norway spruce forests were reduced 3-8% during mid-day and 10-40% during nighttime. Daylight Accumulated exposure Over a Threshold 40ppb (AOT40) was reduced 15-45% inside as compared to outside the forest. The horizontal concentration differences between inside and outside the forest were in the order of 3-4%, independently of the height above ground. The ozone concentration difference inside and outside the forest depended on the air turbulence as well as the horizontal wind speed inside the forest. It also depended on the distance to the forest edge in relation to the wind direction. The ozone concentration differences inside and outside the Norway spruce forests were explained by the differences in the rate of dry deposition in relation to the rate of replacement of ozone from higher air layers or by the horizontal wind going into the forest. (c) 2005 Elsevier Ltd. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- in-canopy ozone concentrations
- AOT40
- wind conditions
- forests
- Norway
- spruce
- VEGETATION
- EUROPE
- STAND
- CROP
- In-canopy ozone concentrations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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