Zpravodaj Hnědé uhlí 2012, 52(1)

Restoration of humus layer in stands of birch and blue spruce on a disturbed site in the Krušné Hory Mountains

Ing. Iva Ulbrichová, Ph.D., prof. Vilém Podrázský, CSc., Ing. Martin Kouba

Česká zemědělská univerzita, Fakulta lesnická a dřevařská, Katedra pěstování lesů, Praha 6 - Suchdol

The paper describes the development of forest soil surface layers on a bulldozed plot in the course of 20 years. The study plot is located on the flat top part of the Krušné Hory Mountain at 860 m a.s.l. The bedrock is formed by acid metamorphites (micaschist) and soil type is represented by Cryptopodzol - Podzol. The plot was afforested by the Blue (Colorado) spruce (Picea pungens). In 1984, sown Birch (Betula verrucosa) was also planted in the plot and later dominated in the stand. The results confirmed a favourable role of the birch in humus layer formation and positive influence on forest soil chemical characteristics (pH, soil adsorption complex, nutrient content and amount). The dynamics of soil characteristics was closely connected with litter accumulation and humus layer formation.

Keywords: immission areas, soil degradation, soil improving tree species, substitute tree species, forest soil, soil amelioration, biological amelioration

Published: March 1, 2012  Show citation