Thuja plicata : provenance experiments and cultivation trials in South Sweden
In times of climate change and an increasing number of threats for native tree species in Sweden and other countries in Europe, exotics as Thuja plicata (Donn ex D. Don) might be considered to a greater extent. This thesis aims to evaluate the establishment and early growth of previously established...
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| Format: | H2 |
| Language: | Inglés German |
| Published: |
SLU/Southern Swedish Forest Research Centre
2019
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| Subjects: |
| _version_ | 1855572508745400320 |
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| author | Kemper, Carolin |
| author_browse | Kemper, Carolin |
| author_facet | Kemper, Carolin |
| author_sort | Kemper, Carolin |
| collection | Epsilon Archive for Student Projects |
| description | In times of climate change and an increasing number of threats for native tree species in Sweden and other countries in Europe, exotics as Thuja plicata (Donn ex D. Don) might be considered to a greater extent. This thesis aims to evaluate the establishment and early growth of previously established provenance experiments with Thuja plicata in the south of Sweden, to be able to give recommendations for an adequate choice of provenance. In addition, the species´ ecology, as well as experiences of former provenance experiments in other countries than Sweden will be included. Height measurement and damage assessment on four Thuja plicata provenances as well as on Norway spruce from two seed orchards as reference, was carried out in four experiments on three sites in South Sweden. At this stage of stand development, results show Norway spruce in most cases superior regarding height growth and vitality. No significant differences between Thuja plicata provenances could be shown in relation to height development and damage severity. However, trends indicated Horsey Creek and Bench Road as the best growing provenances, while Yola Creek grew the slowest. Damage assessment has proven Horsey Creek as the most vital provenance, whereas Bench Road was the most severely damaged Thuja plicata provenance. Due to highest vitality of the seedlings and good growth on all sites, Horsey Creek will be the recommended provenance for growing conditions in South Sweden. |
| format | H2 |
| id | RepoSLU15021 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés ger |
| publishDate | 2019 |
| publishDateSort | 2019 |
| publisher | SLU/Southern Swedish Forest Research Centre |
| publisherStr | SLU/Southern Swedish Forest Research Centre |
| record_format | eprints |
| spelling | RepoSLU150212019-09-26T01:03:48Z Thuja plicata : provenance experiments and cultivation trials in South Sweden Kemper, Carolin Thuja plicata Western red cedar Provenances Sweden South Sweden In times of climate change and an increasing number of threats for native tree species in Sweden and other countries in Europe, exotics as Thuja plicata (Donn ex D. Don) might be considered to a greater extent. This thesis aims to evaluate the establishment and early growth of previously established provenance experiments with Thuja plicata in the south of Sweden, to be able to give recommendations for an adequate choice of provenance. In addition, the species´ ecology, as well as experiences of former provenance experiments in other countries than Sweden will be included. Height measurement and damage assessment on four Thuja plicata provenances as well as on Norway spruce from two seed orchards as reference, was carried out in four experiments on three sites in South Sweden. At this stage of stand development, results show Norway spruce in most cases superior regarding height growth and vitality. No significant differences between Thuja plicata provenances could be shown in relation to height development and damage severity. However, trends indicated Horsey Creek and Bench Road as the best growing provenances, while Yola Creek grew the slowest. Damage assessment has proven Horsey Creek as the most vital provenance, whereas Bench Road was the most severely damaged Thuja plicata provenance. Due to highest vitality of the seedlings and good growth on all sites, Horsey Creek will be the recommended provenance for growing conditions in South Sweden. In Zeiten des Klimawandels und steigender Gefahren für natürlich vorkommende Baumarten in Schweden, sowie anderen Ländern in Europa, sollten exotische Baumarten wie Thuja plicata (Donn ex D. Don) in größerem Maße in Betracht gezogen werden. Diese Arbeit soll die Bestandesbegründung und das Jugendwachstum der Provenienzversuche mit Thuja plicata in Südschweden auswerten, um im Anschluss Empfehlungen über die richtige Wahl der Herkunft geben zu können. Außerdem sollen Ökologie sowie vorangegangene Erfahrungen zu Provenienzversuchen in anderen Ländern als Schweden zusammengetragen werden. Neben Höhenmessungen wurden das Ausmaß und der Grund des Schadens für vier Thuja plicata Provenienzen sowie für Fichten aus zwei unterschiedlichen Baumschulen als Referenz bewertet. Diese Inventur wurde in vier Experimenten auf drei Standorten in Südschweden durchgeführt. Die Ergebnisse zeigen, dass Fichte in fast allen Fällen bezüglich Höhenwachstum und Vitalität überlegen ist. Es konnten keine signifikanten Unterschiede zwischen den Thuja plicata Provenienzen gezeigt werden. Dennoch weisen Trends darauf hin, dass Horsey Creek und Bench Road im Vergleich zu den anderen Herkünften besser wuchsen, während Yola Creek am langsamsten wuchs. Schadensbeurteilung lässt auf Horsey Creek als vitalste Provenienz schließen, während Bench Road am schwerwiegendsten beschädigt wurde. Aufgrund der guten Vitalität, sowie des adäquaten Wachstums empfiehlt sich Horsey Creek als am besten geeignete Herkunft für schwedische Wachstumsbedingungen. SLU/Southern Swedish Forest Research Centre 2019 H2 eng ger https://stud.epsilon.slu.se/15021/ |
| spellingShingle | Thuja plicata Western red cedar Provenances Sweden South Sweden Kemper, Carolin Thuja plicata : provenance experiments and cultivation trials in South Sweden |
| title | Thuja plicata : provenance experiments and cultivation trials in South Sweden |
| title_full | Thuja plicata : provenance experiments and cultivation trials in South Sweden |
| title_fullStr | Thuja plicata : provenance experiments and cultivation trials in South Sweden |
| title_full_unstemmed | Thuja plicata : provenance experiments and cultivation trials in South Sweden |
| title_short | Thuja plicata : provenance experiments and cultivation trials in South Sweden |
| title_sort | thuja plicata : provenance experiments and cultivation trials in south sweden |
| topic | Thuja plicata Western red cedar Provenances Sweden South Sweden |