@misc{Czerwiński_Zbigniew_Productivity_1971,
 author={Czerwiński, Zbigniew},
 editor={Polish Academy of Sciences, Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1971},
 language={eng},
 abstract={The paper gives the characteristics of two investigated meadow areas, Strzeleckie and Kazuńskie. Both areas are located in the valley of the Vistula on alluvial river terraces. The Strzeleckie Meadow soil is formed from loose and slightly loam river sand, under conditions due to the effects of periods of heavy moisture and of meadow-bog plants. On the surface of the Strzeleckie Meadows are found mainly muck-like black soil, in which are accumulated humus and organic substances. Humus and organic substances decide the physical and chemical properties of the surface layers of this soil. The Kazuńskie Meadow soil is very fertile and rich in mineral components. It belongs to the group of brown gleyed and gley alluvial soils.},
 type={Text},
 title={Productivity investigation of two types of meadows in the Vistula valley. 2, Soil conditions},
 URL={http://rcin.org.pl/Content/71691/PDF/WA058_86406_P2840-T19_Eko-Pol-A-Nr-8.pdf},
 volume={19},
 number={8},
 journal={Ekologia Polska},
 publisher={Państwowe Wydawnictwo Naukowe},
 keywords={meadows, soils, research, Poland, primary productivity},
}