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Impact of ozone on ...
Impact of ozone on the growth of birch (Betula pendula) saplings
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Karlsson, Per Erik, 1957 (författare)
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- Uddling, Johan, 1972 (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute
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- Skärby, Lena (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute
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- Wallin, Göran, 1955 (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute
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- Selldén, Gun, 1946 (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute
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(creator_code:org_t)
- 2003
- 2003
- Engelska.
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Ingår i: Environmental Pollution. - 0269-7491. ; 124:3, s. 485-495
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Saplings of one half-sib family of birch, Betula pendula, were exposed to three levels of ozone in open-top chambers (OTCs) during two growing seasons 1997-1998. The ozone treatments were non-filtered air (NF, accumulated daylight AOT40 over the two growing seasons of 3.0 mul l(-1) h), non-filtered air with extra ozone (NF +, accumulated daylight AOT40 of 27.3 mul l(-1) h) and nonfiltered air with additional extra ozone (NF++, accumulated daylight AOT40 of 120 mul l(-1) h), The birch saplings, including the roots, were harvested after the first and second growing seasons. After the first growing season, the NF++ treatment reduced the total wood biomass by 22%, relative to the NF treatment. There was no further reduction of the total wood biomass in the NF++ treatment after the second growing season. The root biomass was reduced by 30% after the first growing season. The shoot/root ratio, as well as the proportional biomass of leaves, were increased by ozone during both years. The ozone impact on the relative growth rate was estimated to -2% per 10 mul l(-1) h daylight AOT40 per growing season. (C) 2003 Elsevier Science Ltd. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Nyckelord
- ozone
- aot40
- relative growth rate
- betula pendula
- carbon allocation
- ambient levels
- norway spruce
- whole-plant
- roth
- sensitivity
- responses
- exposure
- stress
- clones
- vegetation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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