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Type of publication: Straipsnis recenzuojamoje Lietuvos tarptautinės konferencijos medžiagoje / Article in peer-reviewed Lithuanian international conference proceedings (P1e)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Sujetovienė, Gintarė
Title: Ecosystem recovery : pine forests vegetation response to a reduction in nitrogen deposition
Other Title: Ekosistemos atsistatymas: pušynų augalijos atsakas į sumažėjusią taršą azotu
Is part of: Žmogaus ir gamtos sauga: 14-osios tarptautinės mokslinės-praktinės konferencijos medžiaga, 2008 m. gegužės 14-17 d., birželio 12-13 d., Kaunas = Human and nature safety: proceedings of the international scientific conference. Kauno raj. : Akademija, 2008, D. 2
Extent: p. 123-126
Date: 2008
Keywords: Acidification;Nitrogen deposition;Ellenberg indicator values;Understorey vegetation;Scots pine stands
Abstract: Vegetation of pine (Pinus sylvetris L.) forests subjected to intense air pollution stress in the impact zone of one of the largest air pollution sources in Lithuania – the mineral fertilizer plant Achema data were analysed to determine potential ecosystem recovery between 1988 and 2004. The study sites were established at 3-22 km distances in the prevailing wind direction where vegetation data from pine stands which had first been surveyed by prof. S.Karazija in 1987-1988 were available. Stands with an age of 55 years with vegetation assigned to the Vaccinio-myrtillosa site type and with similar dendrometrical characteristics were preferred and were investigated in July, 2004. The species that had increased were typical for Vaccinio-myrtillosa site type. Frequency of such species as Rubus idaeus, Rubus caesius, Impatiens noli-tangere and Chamerion angustifolium decreased significantly (p0.05) – Galeopsis tetrahit, Stellaria media, while the other nitrophilic species were relatively extinct – Aegopodium podagraria, Epilobium montanum. The mean nitrophilic species frequency per sample quadrate was significantly higher in 1988 than in 2004 (p<0.01). The cover of nitrophilous plants comprised the significantly larger part of the sample quadrates in 1988 (58%) comparing with 2004 (21%) (p<0.001)
Affiliation(s): Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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