Research Interests: Geography, Forestry, Canopy, Forest science, Transect, and 3 moreForestry Sciences, Deciduous, and Beech
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Svensk skogsforskning är inriktad på skötsel av trädslagsrena bestånd. I södra Sverige utgörs dock skogarna i relativt hög grad av blandskogar med olika sammansättningar. Kunskaperna om hur sådana skogar sköts är inte tillräcklig. Det... more
Svensk skogsforskning är inriktad på skötsel av trädslagsrena bestånd. I södra Sverige utgörs dock skogarna i relativt hög grad av blandskogar med olika sammansättningar. Kunskaperna om hur sådana skogar sköts är inte tillräcklig. Det finns många andra kombinationer av trädslag och beståndsstrukturer som är mindre typiska än tall–gran eller gran–björk och även mindre utforskade. Andra exempel på kunskapsbrist att sköta bestånd är skog med någon form av självföryngring. Om den tillämpade skogsforskningen inte har samma resurser för att utforska blandskog eller flerskiktad skog som bestånd med bara ett trädslag, då finns ett behov av ett mer generellt koncept för att också sköta heterogena bestånd. Praktiska råd i skogen för de som ibland arbetar med mer heterogena bestånd, av mindre vanlig typ: Börja med att kartlägga diameterfördelningen av beståndet, använd Heureka Beståndsvis och ha koll på självföryngring ifall du vill uppskatta framtidens beståndsutveckling och skötsel! Sedan ka...
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Zwei Untersuchungsflächen in einem ungleichaltrigen Buchenwald mit hohem Edellaubholzanteil wurden nach 15 Jahren erneut aufgenommen. Sie haben eine besondere historische Waldnutzung ohne Überführung in den Altersklassenwald hinter sich.... more
Zwei Untersuchungsflächen in einem ungleichaltrigen Buchenwald mit hohem Edellaubholzanteil wurden nach 15 Jahren erneut aufgenommen. Sie haben eine besondere historische Waldnutzung ohne Überführung in den Altersklassenwald hinter sich. Während die typischen Plenterwälder im Hainich nahezu reine Buchenbestände sind, ist der untersuchte Wald durch einen hohen Bergahornanteil gekennzeichnet. Er ist ein Musterbeispiel für Buchen-Edellaubholz-Mischbestände als Waldentwicklungsziel auf Muschelkalkstandorten in der kollinen Höhenstufe, wie sie in Waldbauprogrammen beschrieben werden.
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This article reviewed studies from Germany, Russia, Lithuania, Sweden and Finland about wolf trees in Scots pine (Pinus sylvestris L.) forests and examined the definition of a wolf tree. In addition, we analyzed the main traits and... more
This article reviewed studies from Germany, Russia, Lithuania, Sweden and Finland about wolf trees in Scots pine (Pinus sylvestris L.) forests and examined the definition of a wolf tree. In addition, we analyzed the main traits and parameters of these trees, such as lower crown ratio, more conical stem taper, partly deformed crown, and thicker and longer branches. The analysis revealed changes in the definition of a wolf tree during the XX century and different definitions over various regions. The differences between wolf trees and common trees were found in growth patterns, stress sensitivity and genetics. Also this article reviewed several possible reasons for the occurrence of wolf trees in forest stands.
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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... more
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 ex...
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PurposeRecent climate scenarios indicate that Sweden's southern region, Götaland, will experience significant climate change over the coming century. Swedish forestry policy guidelines emphasize the need for risk spreading to reduce... more
PurposeRecent climate scenarios indicate that Sweden's southern region, Götaland, will experience significant climate change over the coming century. Swedish forestry policy guidelines emphasize the need for risk spreading to reduce the potential adverse impacts of these changes. Risk spreading is defined here as reducing the vulnerability of a social‐ecological system by increasing the heterogeneity of its ecological components. Risk spreading may be achieved through the diversification of tree species currently relied upon by the forestry sector. The purpose of this paper is to consider the capacity of the socio‐ecological forest system to adapt to climate change through the use of risk spreading.Design/methodology/approachA variety of disciplines contribute to the understanding of the rate at which risk spreading is likely to take place in a system. A synthesis is conducted to unite these insights.FindingsFive key constraints on the rate at which risk spreading can take place...