%0 Article
%T Uptake of NOx in Scots pine.
%A Skärby, L.
%A Bengtson, C.
%A Boström, C.-Å.
%A Grennfelt, P.
%A Troeng, E.
%D 1981
%J Silva Fennica
%V 15
%N 4
%R doi:10.14214/sf.a15362
%U https://silvafennica.fi/article/5135
%X <p>Information on input of acidifying compounds like SO<sub>2</sub> and NO<sub>x</sub> is necessary to understand effects of acidification. The uptake on NO and NO2 respectively was studied on seedlings and shoots of Scots pine (<em>Pinus sylvestris</em> L.). Experiments were conducted both in laboratory (NO and NO<sub>2</sub> respectively) and in the field (NO<sub>2</sub>) under light and dark conditions. In all three cases there was a linear relationship between the uptake rate and the NO<sub>x</sub>-concentration. The uptake follows a diurnal pattern i.e. the uptake rate was strongly correlated with the stomatal movements. Uptake rates were converted to deposition rate and the results showed that field exposure with NO<sub>2</sub> gave the higher deposition rate.</p>