Ozone deposition in relation to canopy physiology in a mixed conifer forest in Denmark

H. Ro-Poulsen; Teis Nørgaard Mikkelsen; M.F. Hovmand; P. Hummelshøj; N.O. Jensen

doi:10.1016/S0045-6535(97)10105-9

Ozone deposition in relation to canopy physiology in a mixed conifer forest in Denmark

H. Ro-Poulsen, Teis Nørgaard Mikkelsen, M.F. Hovmand, P. Hummelshøj, N.O. Jensen

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Abstract

In this study CO(2) and H(2)O flux measurements made above a spruce forest was compared with the ozone flux to the canopy during growing season 1995. The fluxes were determined by micro meteorological gradient methods using a 36-m tall meteorological mast. The trees were about 12 m high and air sampling was done from 36 and 18 m. The preliminary results suggest that there is only little correlation between ozone concentration in 36 m and the ozone flux to the forest, but the diurnal pattern of ozone uptake seems to be significantly influenced by stomatal conductance. The cumulative total ozone uptake seems to follow very well the evapotranspiration. (C) 1998 Elsevier Science Ltd.

Original language	English
Journal	Chemosphere
Volume	36
Issue number	4-5
Pages (from-to)	669-674
ISSN	0045-6535
DOIs	https://doi.org/10.1016/S0045-6535(97)10105-9
Publication status	Published - 1998

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title = "Ozone deposition in relation to canopy physiology in a mixed conifer forest in Denmark",

abstract = "In this study CO(2) and H(2)O flux measurements made above a spruce forest was compared with the ozone flux to the canopy during growing season 1995. The fluxes were determined by micro meteorological gradient methods using a 36-m tall meteorological mast. The trees were about 12 m high and air sampling was done from 36 and 18 m. The preliminary results suggest that there is only little correlation between ozone concentration in 36 m and the ozone flux to the forest, but the diurnal pattern of ozone uptake seems to be significantly influenced by stomatal conductance. The cumulative total ozone uptake seems to follow very well the evapotranspiration. (C) 1998 Elsevier Science Ltd. ",

keywords = "Vindenergi og atmosf{\ae}riske processer",

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doi = "10.1016/S0045-6535(97)10105-9",

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T1 - Ozone deposition in relation to canopy physiology in a mixed conifer forest in Denmark

AU - Ro-Poulsen, H.

AU - Mikkelsen, Teis Nørgaard

AU - Hovmand, M.F.

AU - Hummelshøj, P.

AU - Jensen, N.O.

PY - 1998

Y1 - 1998

N2 - In this study CO(2) and H(2)O flux measurements made above a spruce forest was compared with the ozone flux to the canopy during growing season 1995. The fluxes were determined by micro meteorological gradient methods using a 36-m tall meteorological mast. The trees were about 12 m high and air sampling was done from 36 and 18 m. The preliminary results suggest that there is only little correlation between ozone concentration in 36 m and the ozone flux to the forest, but the diurnal pattern of ozone uptake seems to be significantly influenced by stomatal conductance. The cumulative total ozone uptake seems to follow very well the evapotranspiration. (C) 1998 Elsevier Science Ltd.

AB - In this study CO(2) and H(2)O flux measurements made above a spruce forest was compared with the ozone flux to the canopy during growing season 1995. The fluxes were determined by micro meteorological gradient methods using a 36-m tall meteorological mast. The trees were about 12 m high and air sampling was done from 36 and 18 m. The preliminary results suggest that there is only little correlation between ozone concentration in 36 m and the ozone flux to the forest, but the diurnal pattern of ozone uptake seems to be significantly influenced by stomatal conductance. The cumulative total ozone uptake seems to follow very well the evapotranspiration. (C) 1998 Elsevier Science Ltd.

KW - Vindenergi og atmosfæriske processer

U2 - 10.1016/S0045-6535(97)10105-9

DO - 10.1016/S0045-6535(97)10105-9

M3 - Journal article

SN - 0045-6535

VL - 36

SP - 669

EP - 674

JO - Chemosphere

JF - Chemosphere

IS - 4-5

ER -

Ozone deposition in relation to canopy physiology in a mixed conifer forest in Denmark

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