Development of new forest stands after a large scale forest decline in the Krušné hory Mountains
✍ Scribed by Pavel Moravčík
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 666 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0925-8574
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✦ Synopsis
In the Kru~n6 hory Mountains, biomass accumulation and soil chemical status were studied in four forest stands --Picea pungens (A), Betula verrucosa (B), Picea abies (C) and Sorbus aucuparia (D) --growing in a region heavily affected by air pollution. Ages of the stands were 5, 5, 30 and 13 years respectively. Stands A and B grow on sites modified during the site preparation before planting (topsoil removing by bulldozer). Stand C represents Picea abies stands which had dominated this area before air pollution stress increased. Stand D derived from spontaneous regeneration of Sorbus aucuparia after a decline of a mature spruce stand. Total above-and below-ground biomass accumulations in stand A, B, C and D were 21.75, 43.11, 149.6 and 131.67 t' ha 1 respectively. Soil chemical status was affected to a large extent by topsoil removal in stand A and B compared to stand C and D. It is pronounced mainly in the reduced content of organic matter. Young stands of Betula ~,errucosa and Sorbus aucuparia are able to form close forest stands with a relatively high biomass accumulation and can thus effectively contribute to the development of new forest ecosystems in the Kru~n~ hory.