Is Silver fir (Abies alba) less vulnerable to extraction damage than Norway spruce (Picea abies)?

Kohnle, Ulrich; Kändler, Gerald

doi:10.1007/s10342-006-0137-3

Cited by 9 publications

(10 citation statements)

References 14 publications

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“…Surveys performed by Kohnle and Kändler (2007) corroborated empirical findings of Bazzigher and Schmid (1969), namely that bark damage in silver fir (Abies alba Mill.) is less severe than in Norway spruce, and that injuries inflicted to the bark of silver fir are less prone to lead to decay.…”

Section: Introductionsupporting

confidence: 85%

“…The study provides detailed insight in histological mechanisms of ''sealing'' the wound surface, explaining the different susceptibility of the two species to fungal wound colonization. Very obviously, the relatively low wound rot risk in silver fir further bolsters the species' advantage in risk potential when compared to Norway spruce, which also suffers higher risks of butt rot, bark beetle attack, or storm damage (Kohnle and Kändler, 2007;Albrecht et al, 2012). Norway spruce is mostly planted outside its natural range, but it is currently the most important forest tree species in Southwest Germany.…”

Section: Consequencesmentioning

confidence: 99%

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Comparing Norway spruce and silver fir regarding impact of bark wounds

Metzler¹,

Hecht²,

Nill³

et al. 2012

Forest Ecology and Management

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Section: Introductionsupporting

confidence: 85%

Section: Consequencesmentioning

confidence: 99%

Comparing Norway spruce and silver fir regarding impact of bark wounds

Metzler¹,

Hecht²,

Nill³

et al. 2012

Forest Ecology and Management

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“…Following wood infection, for many tree species, decay may even invade the central portions of the stem and form a typical "heart rot" that expands well above and below the surface of the bark wound (Pawsey and Gladman 1965;Shigo 1966;El Atta and Hayes 1987). Norway spruce (Picea abies) in particular is highly susceptible to wound decays that lead to degradation and serious economic losses (Dimitri and Schumann 1975;Kohnle and Kändler 2007;Metzler et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Improved models of harvest-induced bark damage

Nakou¹,

Sauter²,

Kohnle³

2015

Annals of Forest Science

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Key messageWe provided a precise quantitative analysis of the factors at the origin of bark damage during harvesting operations and developed a model able to predict them accurately. The major factors were the distance of trees to skid trails, the intensity of removals, the harvesting system as well as the interactions between the distance of trees to skid trails with harvesting systems, the average skidding distance, the tree species and tree height.• Context During timber harvesting, trees in the remaining stand may suffer bark damage resulting from tree-felling or log manipulation. Although a multitude of case studies and empirical observations provide qualitative and quantitative information with respect to the potential causal factors, the basic quantitative relationship between major factors of influence and the resulting degree of bark damage remains largely unclear.• Aims The objective was to provide a precise quantitative analysis of impact factors explaining the occurrence of bark damage during harvesting operations.• Methods Three different modelling approaches were tested: boosted regression tree (BRT), a generalised linear mixed effects model (GLMM) and Bayesian Markov chain Monte Carlo generalised linear mixed models (MCMCglmm).• Results The major factors with a significant impact on the occurrence of bark damage were the distance of trees to skid trails, the intensity of removals, the harvesting system and the interaction term between the distance of trees to skid trails with harvesting systems, average skidding distance, tree species and tree height.• Conclusion The final model includes the relevant major factors impacting on the infliction of bark damage during practical harvesting operations. Furthermore, it discriminates well with respect to the occurrence of bark damage, and it provides managers with a rational and conclusive tool for optimising harvesting operations.

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“…The susceptibility of Norway spruce Picea abies (L.) Karst. to wood decay caused by fungi is commonly known, and thus the majority of studies on butt rot have been focused on this species (Norokorpi 1979;Stenlid, Wästerlund 1986;Krzan 1985;Mattila, Nuutinen 2007;Kohnle, Kändler 2007). On the other hand, the significance of butt rot problem in silver fir has not been ad-equately recognised.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of the silver fir (Abies alba Mill.) butt rot in protected areas

Niemtur¹,

Chomicz²,

Kapsa³

2015

Forest Research Papers

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The aim of the study was to analyse butt rot incidences in silver fir stands of selected nature reserves and national parks. The study included 11 stands in Carpathian forests and for comparison 4 stands outside the Carpathians. To identify butt rot in fir trees, we used the non-invasive method of acoustic tomography. We tested 30 randomly selected fir trees in each of the 15 stands using Picus Sonic tomography to determine butt rot occurrence and to assess the proportion (%) of healthy wood in cross-sections of the tree trunk. The results indicate significant differences in the frequency of butt rot in silver fir at the individual level as well as the population level. This variability in frequency was not dependent on geographical location of the investigated stands.

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Is Silver fir (Abies alba) less vulnerable to extraction damage than Norway spruce (Picea abies)?

Cited by 9 publications

References 14 publications

Comparing Norway spruce and silver fir regarding impact of bark wounds

Comparing Norway spruce and silver fir regarding impact of bark wounds

Improved models of harvest-induced bark damage

Occurrence of the silver fir (Abies alba Mill.) butt rot in protected areas

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