Abstract

Harvest strategies that emulate natural disturbances are being promoted to restore multilayered forest heterogeneity, notably the harvest of largest trees. However, their use also increases management complexity, and more information on their practical feasibility and effects on forests is needed. Therefore, in this study, target diameter cutting treatments were applied to a heterogeneously structured stand in southern Sweden (exemplifying a conifer-dominated forest of the hemiboreal forest region in northern Europe) to assess their effects on gap dynamics, natural regeneration, and stand growth. The target diameter cutting resulted in an exponentially decreasing gap size distribution, with the largest canopy gaps measuring 0.1–0.2 ha. The gap closure rate was higher than reported rates for gaps in natural forests. After 5 years, sufficient numbers of seedlings had regenerated, but proportions of intermediate- and late-successional tree species were low. The observed stand growth exceeded rates simulated using the growth model Standwise in the Heureka forest planning software package. The findings from this case study are useful for refining the general concept of close-to-nature forestry, but they need to be complemented with the information available from other regeneration studies after partial harvest.

Keywords

Sweden, multilayered forest, stand development, gap dynamics, close-to-nature forestry, hemiboreal forests in Europe

Published in

Canadian Journal of Forest Research
2015, Volume: 45, number: 4, pages: 1198-1205
Publisher: NRC Research Press (Canadian Science Publishing)

SLU Authors

• Drössler, Lars

  • Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences
    

• Ekö, Per-Magnus

  • Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences
    

• Balster, Roman

  • Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences
    

Sustainable Development Goals

Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss


UKÄ Subject classification

Forest Science


Publication identifier

DOI: https://doi.org/10.1139/cjfr-2014-0471

Permanent link to this page (URI)

https://res.slu.se/id/publ/69892