Acta Scientiarum Polonorum
Silvarum Colendarum Ratio et Industria Lignaria

ISSN:1644-0722, e-ISSN:2450-7997

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original articleIssue 19 (4) 2020 pp. 207–216

Marlena Baranowska1, Stefan Panka2, Robert Korzeniewicz1, Radosław Roszak3, Miłosz Włodarczak3, Bartłomiej Meres4

1Katedra Hodowli Lasu, Uniwersytet Przyrodniczy w Poznaniu, Poland
2
Krajowe Centrum Kompetencji Leśnej w Eberswalde, Landeskompetenzzentrum Forst Eberswalde, Germany
3
Wydział Leśny, Uniwersytet Przyrodniczy w Poznaniu, Poland
4
Arboretum Leśne w Zielonce, Poland

SELECTED CLUMPS OF THE WESTERN RED CEDAR IN THE ZIELONKA FOREST

Abstract

Introduction. Thuja plicata is one of the non-invasive alien species found in Polish forests. It is estimated that the largest forest area covered by this species is located in the Zielonka Forest. The aim of the research  was to determine the current condition of the western red cedar in the Zielonka Forest and to indicate their production potential.
Material and methods. Observations and measurements of T. plicata were carried out in April 2018 in the Zielonka Forest in the Stęszewko Forest Unit, compartment 121 (52°32’15.72”N 17°8’40.92”E). Tree height and DBH were measured and the biosocial position of trees was determined. Statistical analyses were performed using the Kruskal-Wallis test.
Results. The results showed that Kraft’s class II trees dominated the biosocial structure. The infestation of western red cedars with Heterobasidion root disease was observed. The mean tree height was 25.3 m and mean dbh was 36.6 cm. The tallest tree was 33.7 m high, while the thickest tree had DBH of 73.0 cm.
Conclusions. An accurate comparison of the results with previous data was difficult due to the fact that the previous records in Poland has not been preserved. However, it has been shown that the western red cedar is a highly productive species. Currently, in view of the threats posed by climate change and the possible need to include alien tree species in commercial timber production, it is essential to conduct research on the effects of their introduction and methods to improve their productivity. Considering that timber is a renewable raw material, it is necessary to broaden knowledge concerning alien tree species, which would supplement timber production, while at the same time would significantly affect biodiversity of native ecosystems.

Keywords: Thuja plicata, alien species, introduction, Murowana Goślina Experimental Forest Station
pub/.pdf Full text available in english in Adobe Acrobat format:
http://www.forestry.actapol.net/issue4/volume/22_4_2020.pdf

https://doi.org/10.17306/J.AFW.2020.4.22

For citation:

MLA Baranowska, Marlena, et al. "WYBRANE KĘPY ŻYWOTNIKA OLBRZYMIEGO W PUSZCZY ZIELONCE [SELECTED CLUMPS OF THE WESTERN RED CEDAR IN THE ZIELONKA FOREST]." Acta Sci.Pol. Silv. 19.4 (2020): . https://doi.org/10.17306/J.AFW.2020.4.22
APA Baranowska, M., Panka, S., Korzeniewicz, R., Roszak, R., Włodarczak, M., Meres, B. (2020). WYBRANE KĘPY ŻYWOTNIKA OLBRZYMIEGO W PUSZCZY ZIELONCE [SELECTED CLUMPS OF THE WESTERN RED CEDAR IN THE ZIELONKA FOREST]. Acta Sci.Pol. Silv. 19 (4), https://doi.org/10.17306/J.AFW.2020.4.22
ISO 690 BARANOWSKA, Marlena, et al. WYBRANE KĘPY ŻYWOTNIKA OLBRZYMIEGO W PUSZCZY ZIELONCE [SELECTED CLUMPS OF THE WESTERN RED CEDAR IN THE ZIELONKA FOREST]. Acta Sci.Pol. Silv., 2020, 19.4: . https://doi.org/10.17306/J.AFW.2020.4.22
Streszczenie w języku polskim:
http://www.forestry.actapol.net/tom19/zeszyt4/streszczenie-22.html