@misc{Aulak_Władysław_Studies_1970,
 author={Aulak, Władysław},
 editor={Polish Academy of Sciences, Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1970},
 language={eng},
 abstract={Studies were made using the DG method (Traczyk T. 1967), of net herb layer production in the Circaeo-Alnetum Oberd. 1953 association in the Bialowieża National Park in 1967. It was found that 100 samples per 0.1 m2 is too small a number to permit of calculating the population density of different species in the herb layer with only a small degree of error. The calculated net production of dry biomass in the herb layer was 1,074.572 + 140.016 kg/ha, with standard error of 6.6%. This production is formed by a small number of herb layer species, while the remaining species occurring in this layer form only a small percentage of the total production.},
 type={Text},
 title={Studies on herb layer production in the Circaeo-Alnetum Oberd. 1953 association},
 URL={http://rcin.org.pl/Content/71173/PDF/WA058_86335_P2840-T18_Eko-Pol-A-Nr-19.pdf},
 volume={18},
 number={19},
 journal={Ekologia Polska},
 publisher={Państwowe Wydawnictwo Naukowe},
 keywords={alder-ash forest, Poland, Białowieża Forest, Fraxino-Alnetum},
}