eesti teaduste
akadeemia kirjastus
SINCE 1952
Proceeding cover
of the estonian academy of sciences
ISSN 1736-7530 (Electronic)
ISSN 1736-6046 (Print)
Impact Factor (2020): 1.045

Integrated impact of sulphur and nitrogen deposition and ozone on forest ecosystems in Lithuania, 1995–2015; pp. 315–324

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Steigvilė Byčenkienė, Kristina Plauškaitė, Ingrida Augustaitienė, Algirdas Augustaitis, Manuela Baumgarten, Raselė Girgždienė, Dalia Jasinevičienė, Almantas Kliučius, Vitas Marozas, Rainer Matyssek, Gintautas Mozgeris, Gintaras Pivoras, Vidmantas Ulevicius


The present study considers temporal variability in concentrations of the throughfall fluxes and bulk fluxes of sulphate, nitrate, and ammonium in precipitation in Lithuania evaluated employing a non-parametric Mann-Kendall test along with Sen’s slope estimator during the period 1995–2015. Decreased air concentrations of sulphur species and ammonium as well as their deposition were the main drivers of the reduction of mean defoliation of Scots pine trees in Lithuania. Their effect on Norway spruce crown defoliation was less expressed, but no effect of acidifying species and surface ozone was detected on birch tree crown defoliation. The established relationships revealed that a deterioration of the health of coniferous tree species, first of all Scots pine, could be expected only in forest where the deposition of the acidifying species exceeded the critical loads.


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