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Wstepne wyniki stosowania rebni stopniowej gniazdowej udoskonalonej w drzewostanie jodlowym w Swietokrzyskim Parku Narodowym

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Kaminski P., Jaworski A.

Acta Agraria et Silvestria. Series Silvestris

2008

tom 46

21-39

The improved stepwise Swiss femel cutting system was introduced in the control unit 38, 15.06 ha in area. Measurements were carried out in 1993 and 2003. During the period of 10 years the growing stock of the stand under investigations increased from 298.65 to 361.17 m3/ha, while its volume increment was 10.9 m3/ha/year. It was found that between 1993 and 2003 the proportion of silver fir increased from 59 to 73%, while that of Scots pine decreased from 32 to 19%, and the proportion of other admixture species decreased from 9 to 8%. A high volume increment of the stand reflected the revival of silver fir after the period of increment decline between 1975 and 1990. Results showed a high efficiency of the cutting system introduced. They also suggested its modifications taking into account specific forest conditions in the Świętokrzyskie Mountains, i.e. conducting cuttings in favor of silver fir but at the same time securing a proper proportion of admixture species, stopping removal of Scots pine trees of good quality and high vitality, and removing silver fir trees with stem rot from the upper stand layer.

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1 Acta Agraria et Silvestria. Series Silvestris

1 Jaworski A.

1 Kaminski P.

1 2008

Wyniki wyszukiwania

Wstepne wyniki stosowania rebni stopniowej gniazdowej udoskonalonej w drzewostanie jodlowym w Swietokrzyskim Parku Narodowym