Analiza wzrostu odnowienia naturalnego jodły pospolitej (Abies alba Moll.) w rezerwacie Jata
Growth analysis of silver fir (Abies alba Mill.) natural regeneration in the Jata reserve
Autorzy
- Dorota Dobrowolska Instytut Badawczy Leśnictwa, Zakład Ekologii Lasu, ul. Braci Leśnej 3, Sękocin Stary, 05-090 Raszyn
Abstrakt
The study was conducted in the Jata reserve, the furthest natural silver fir location in north-eastern Europe. Growth rate of the silver fir natural regeneration under different site types, various stand structure and species composition was investigated. It was found that fir grows very slowly in the lowlands. The age structure is very variable and depands on microsite conditions. In the lowlands, period of regeneration should be prolonged up to 60 years. The growth rate of fir seedlings depends on stand density. Site types and stand density influence the growth rate of fir saplings. Fir regeneration grows faster on the following site types: fresh mixed coniferous forest (BMśw) and moist mixed broadleaved forest (LMw),compared to growth rate on fresh mixed broadleaved forest (LMśw).
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