Zpravodaj Hnědé uhlí 2010, 50(3)

Growth dynamics of wood species on the Šmeral spoil bank in the region of Most

Ing. Václav Bažant, doc. Ing. Martin Slavik, CSc., doc. Ing. Jiří Remeš, Ph.D.

Česká zemědelská univerzita Praha, Fakulta lesnická a dřevařská

Growth dynamics of individual wood species was evaluated on the šmeral spoil bank, one of the oldest reclaimed spoil banks in the region of Most. Study plots were established in a monoculture stand of pedunculate oak (Quercus robur), small-leaved lime (Tilia cordata), northern red oak (Quercus rubra), and ash (Fraxinus excelsior). An average sample tree was chosen in the study plots by measuring. Then, a disc was taken from the chosen sample trees at a height of 1,3 m. According to increment curves, the selected tree species terminate their juvenile phase of development at the age between 15 and 20. Subsequently, their dynamic diameter increment decreases. Thus, their growth is similar to pioneer woody species. When comparing the relationship between annual diameter increment and rainfall quantity, it is obvious that the trees in spoil bank habitats respond more sensitively to the lack of rainfall till certain age stage. When the trees come to the age around 20 years, the development of their root system enhances their ability to resist a decreased water supply in soil.

Keywords: forest reclamation, wood species growth on reclaimed spoil banks

Published: September 1, 2010  Show citation