| Titre : | AMBIO 38(8) - DEC 2009 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Per Erik Karlsson, Auteur ;
Hakan Pleijel, Auteur ;
David Simpson, Auteur
Ozone concentrations are generally considerably lower over northern Europe as compared with continental and southern Europe. However, ozone becomes toxic for vegetation mainly after it has been taken up into the leaf interior through the stomata[...]
Article
Lin Tang, Auteur ;
Per Erik Karlsson, Auteur ;
Yongfeng Gu, Auteur ;
Deliang Chen, Auteur ;
Peringe Grennfelt, Auteur
We studied long-range transport patterns and related weather types in relation to high-ozone events in southern Sweden. The aim was to deepen the understanding of the relationship between Lamb-Jenkinson weather types and surface ozone concentrat[...]
Article
Magnuz Engardt, Auteur ;
Robert Bergstrom, Auteur ;
Camilla Andersson, Auteur
We used an off-line, regional, model of atmospheric transport and chemistry to investigate current and future levels of near-surface ozone and accumulated ozone exposure over a threshold of 40 ppb(v) (AOT40) in Europe. To describe the current si[...]
Article
Jenny Klingberg, Auteur ;
Mats P. Bjoekman, Auteur ;
Gunilla Pihl Karlsson, Auteur ;
Hakan Pleijel, Auteur
Ozone was measured using passive diffusion samplers at alpine Latnjajaure (980 m above sea level [asl]) in the northern Scandian Mountain Range during spring and summer 2006-2008, and year-round at three further sites in northernmost Sweden 2004[...]
Article
Nadezda Prozherina, Auteur ;
Elena Nakvasina, Auteur ;
Elina Oksanen, Auteur
The impact of elevated ozone concentrations on early ontogenetic stages of pine (Pinus sylvestris) and spruce (Picea abies, Picea obovata, P. abies X P. obovata) seedlings originating from different provenances in Russia were studied in the open[...]
Article
Cecilia M. Futsaether, Auteur ;
Ane V. Vollsnes, Auteur ;
Ole Mathis Opstad Kruse, Auteur ;
Eli Otterholt, Auteur ;
Knut Kvaal, Auteur ;
Aud B. Eriksen, Auteur
Plants in Nordic regions can be more ozone sensitive at a given ozone concentration than plants at lower latitudes. A recent study shows that the Nordic summer photoperiod, particularly the dim nighttime light, can increase visible foliar injury[...]
Article
Rasa Girgzdiene, Auteur ;
Brigita Serafinaviciute, Auteur ;
Vidas Stakenas, Auteur ;
Steigvile Bycenkiene, Auteur
Continuous ozone concentration measurements at rural sites in Lithuania have been performed since 1982. Longterm ozone data show an increasing trend 0.4 ppb y(-1) in annual mean concentrations during the period 1982-2008, although ozone peak val[...]
Article
Elina Vapaavuori, Auteur ;
Jarmo K. Holopainen, Auteur ;
Toini Holopainen, Auteur ;
Riitta Julkunen-Tiitto, Auteur ;
Seija Kaakinen, Auteur ;
Anne Kasurinen, Auteur ;
Sari Kontunen-Soppela, Auteur ;
Katri Kostiainen, Auteur ;
Elina Oksanen, Auteur ;
Petri Peltonen, Auteur ;
Johanna Riikonen, Auteur ;
Ingmar Tulva, Auteur
This review summarizes the main results from a 3-year open top chamber experiment, with two silver birch (Betula pendula Roth) clones (4 and 80) where impacts of 2X ambient [CO(2)] (EC) and [O(3)] (EO) and their combination (EC + EO) were examin[...]
Article
Sirkku Manninen, Auteur ;
Satu Huttunen, Auteur ;
Hans Tommervik, Auteur ;
Lars R. Hole, Auteur ;
Sverre Solberg, Auteur
Forests in northern Fennoscandia are mainly composed of the O-3-sensitive species-Scots pine and downy, mountain, and silver birches. Seminatural vegetation also contributes to biodiversity, carbon cycling, and ecosystem services as a part of fo[...]
Article
Per Erik Karlsson, Auteur ;
Hakan Pleijel, Auteur ;
Helena Danielsson, Auteur ;
Gunilla Pihl Karlsson, Auteur ;
Kristin Piikki, Auteur ;
Johan Uddling, Auteur
Substantial impacts of near-ambient ozone concentrations on agricultural crops, trees, and seminatural vegetation are demonstrated for southern Sweden. Impacts of ambient ozone levels (2-15 mu L L-1 hr annual accumulated ozone exposure over a th[...]
