Lodgepole pine (Pinus contorta) as a preparatory tree species in immission area Orlicke hory Mts.
2006
Podrazsky, V.(Ceska Zemedelska Univ., Prague (Czech Republic). Katedra Pestovani Lesu) E-mail:[email protected]
The aim of the study was to evaluate the environmental effect of lodgepole pine as a new species that had been introduced in an area heavily affected by air pollution in order to reforest some large clear-cuts. The research plot was established in 1989 on the main ridge of the Orlicke hory Mts. (altitude about 1000 m asl), Czech Republic. Surface humus thickness and quality were assessed and compared with those of a Norway spruce stand. In the pine stand, humus thickness decreased as a consequence of increased humus decomposition leading to high organic matter losses. Even if the soil chemistry did not differ significantly between the two types of stands studied, the soil was less protected in the pine stand than in the spruce one. In addition, the pine stand was characterized by lower forest stability, higher game damages and more pronounced removal of bases from the soil.
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