Original scientific paper

Chemical composition of the plants of loess steppes in Hungary

Margit Kovács ; Institute of Environmental Management of the Agricultural University in Gödöllö, Hungary
Gábor Turcsányi ; Institute of Environmental Management of the Agricultural University in Gödöllö, Hungary
Attila Engloner ; Department of Botany and Plant Physiology of the Agricultural University in Gödöllö, Hungary

Abstract

The first two stages of the successional series on loess (Agropyro-Kocliietum, Salvio-Festucetum rupicolae) differ from each other in their Holistic composition, the total element content of their soils and plant species as well as their water demand. Chrysopogon gryllus, a characteristic species of the loess steppe, belongs to the calciotroph physiotype according to the Ca/K ratio in its leaves. The leaves of this species contain relatively high concentrations of Ca and Mg and a low concentration of N. The high C/N ratio in the leaves and roots of Chrysopogon gryllus should indicate that the mineralization dynamics is slowed down in the stands dominated by this species. Barbula cordata, a moss species of the Salvio-Festucetum rupicolae community, accumulates very high amounts of heavy metals from its surroundings. In the Agropyro-Kochietum community, Bromus species accumulated the highest amounts of heavy metals in their leaves.

Keywords

semidesert; loess; steppe; grassland; plant community; chemical pomposition; Chrysopogon gryllus; Hungary

Hrčak ID:

160638

URI

https://hrcak.srce.hr/160638

Publication date:

31.12.2000.

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