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Results of a phenological study of the tree layer of a mixed stand in the region of the Drahanská vrchovina Upland

Author

Listed:
  • L. Merklová

    (Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

  • E. Bednářová

    (Faculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

Abstract

The paper presents the results of phenological studies of Norway spruce (Picea abies[L.] Karst.), European beech (Fagus sylvatica L.) and European larch (Larix decidua Mill.) in a mixed stand in 2004 to 2007. The results show different onset and duration of phenological stages in the particular years. This broad range was important in spring phenological stages. High correlations were determined between the mean air temperature and the start of phenological stages in monitored species. The onset and duration of autumn phenological stages are affected not only by air temperature but also by air humidity. The annual variability in the onset and course of phenological stages in forest species showed that except genetic factors external conditions, particularly meteorological factors, affecting their onset and duration were also important. Relationships between the onset of phenological stages and changes in meteorological parameters were expressed by the sum of effective air temperatures exceeding 0 and 5°C. To evaluate the relationships by means of the sum of effective temperatures > 5°C, the stage of budbreak was most important in all studied species.

Suggested Citation

  • L. Merklová & E. Bednářová, 2008. "Results of a phenological study of the tree layer of a mixed stand in the region of the Drahanská vrchovina Upland," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 54(7), pages 294-305.
    • Handle: RePEc:caa:jnljfs:v:54:y:2008:i:7:id:15-2008-jfs
    DOI: 10.17221/15/2008-JFS
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    References listed on IDEAS

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    1. B. Schieber, 2006. "Spring phenology of European beech (Fagus sylvatica L.) in a submountain beech stand with different stocking in 1995-2004," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 52(5), pages 208-216.
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