@misc{Wasiłowska_Agnieszka_Bilberry_1999,
 author={Wasiłowska, Agnieszka and Gworek, Barbara},
 editor={Polish Academy of Sciences. Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Dziekanów Leśny},
 howpublished={online},
 year={1999},
 language={eng},
 abstract={In a series of sites from the top of Mumlawski Wierch downwards (Western part of Karkonosze Mts.), properties of bilberry population as well as concentrations of heavy metals in various parts of the plant have been analysed in order to assess the state of spruce forests. It has been found that in habitats where tree stands are declined, density of bilberry population drops rapidly, the plants are becoming stunted and produce fewer flowers and fruits. Among heavy metals analysed, lead was the only one, the concentration of which in the plants exceeded permissible level, especially in sites located in the lower montane zone.},
 type={Text},
 title={Bilberry (Vaccinium myrtillus L.) as an indicator of environmental state of spruce forest in Karkonosze Mts.},
 URL={http://www.rcin.org.pl/Content/106132/PDF/WA058_90937_P2840-T47_Eko-Pol-A-Nr-4.pdf},
 volume={47},
 number={4},
 journal={Polish Journal of Ecology},
 publisher={Polish Academy of Sciences. Institute of Ecology. Publishing Office},
 keywords={Vaccinium myrtillus, heavy metals, industrial pollution},
}