Comparison of Wood Quality of Douglas Fir and Spruce from Afforested Agricultural Land and Permanent Forest Land in the Czech Republic

Zeidler, Aleš; Borůvka, Vlastimil; Schönfelder, Ondřej

doi:10.3390/f9010013

Cited by 21 publications

(13 citation statements)

References 27 publications

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“…menziesii was found to be suitable for European forests [1,2]. High growth rates [3][4][5], good wood quality [6], resistance against fungal pathogens and low numbers of pests and diseases [7] are factors that have contributed to the current widespread distribution of Douglas fir in European forests [8]. This tree's value in the coming years is likely to increase further [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Climate Response of Douglas Fir Reveals Recently Increased Sensitivity to Drought Stress in Central Europe

Vejpustková

Čihák

2019

Forests

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Research Highlights: In Central Europe, Douglas fir became more responsive to summer drought in recent years. Background and Objectives: Until now, Douglas fir has been considered a tree species resistant to drought. However, how Douglas fir will be able to cope with the increasing frequency and intensity of summer heat waves remains a question. The long-term variability in the climate response of Douglas fir in Central European conditions has not been fully explored. The aim of the study was to identify climatic factors controlling the stem radial growth of Douglas fir and Norway spruce, and to examine the temporal changes in tree responses to key climatic variables related to drought stress. Materials and Methods: We analysed the pattern of the climate–growth relationship of Douglas fir and Norway spruce, growing in mixed stands distributed between 260 and 600 m above sea level, which corresponds with the altitudinal zone of intensive spruce dieback in the Czech Republic. Nine-site tree-ring-width chronologies were developed for each tree species. Pointer year analysis and correlation analysis in combination with principal component analysis were used to identify climatic factors limiting their growth. Moving correlation function was computed to assess temporal changes of the climate–growth relationship. Results: In the entire 1961–2015 period, growth of both species was positively related to summer precipitation. The response to temperature differed between species. While spruce was negatively affected by the temperatures in summer months, the increments of Douglas fir were positively correlated with the temperatures in February and March. However, moving correlation analysis revealed recently increasing sensitivity to summer temperatures also for Douglas fir. Higher responsiveness of Douglas fir to drought was also revealed by the increasing frequency of negative pointer years in the 2003–2015 period. Conclusions: The recommendations of Douglas fir as a suitable alternative tree species for declining spruce stands at lower altitudes must be regarded with caution.

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Section: Introductionmentioning

confidence: 99%

“…Site index: Expressed as a mean stand height at the age of 100 years 5. TRW: Tree-ring width 6. EPS: Expressed population signal.…”

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confidence: 99%

Climate Response of Douglas Fir Reveals Recently Increased Sensitivity to Drought Stress in Central Europe

Vejpustková

Čihák

2019

Forests

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“…Similar increase of smaller magnitude in cumulative ΔW by less than 50% was observed for L. decidua in 2018. We assume that the lower interannual changes in cumulative ΔW of P. sylvestris and L. decidua result from lower elasticity of their tissues due to their higher wood density (Požgaj et al, 1993;Zeidler et al, 2018). González-Rodríguez et al (2017) have shown that stem diameter shrinkage is mainly determined by sap flow changes.…”

Section: Seasonal Development Of Stem Growth and Tree Water Statusmentioning

confidence: 99%

Interspecific variation in growth and tree water status of conifers under water-limited conditions

Leštianska

Fleischer

Merganičová

et al. 2020

Journal of Hydrology and Hydromechanics

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We monitored seasonal dynamics of stem water status of four coniferous species (Abies alba, Larix decidua, Picea abies and Pinus sylvestris) planted at the Borová hora Arboretum (300 m a.s.l., Zvolen valley, Central Slovakia) beyond their ecological and production optima, in the region with warmer and drier climate compared to the sites of their origin. Species-specific stem water deficit and maximum daily shrinkage were extracted from diurnal band dendrometer records of stem circumference recorded by digital band dendrometers DRL26 installed on five trees per species, and correlations with environmental variables were analysed. The seasonal stem circumference increment of all tree species was higher in 2017 than in the drier and hotter year of 2018. The greatest seasonal stem circumference increment in the observed periods of 2017 and 2018 was observed for A. alba and P. sylvestris, respectively. The highest and lowest values of daily and seasonal stem water deficit were observed for L. decidua and A. alba, respectively. The analysis of trees' short-term response to extreme climate events seems to be the promising and suitable method for detecting tree species tolerance towards drought.

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“…The environmental variance related to the geographical origin from post-agricultural lands and post-forest lands was analysed for Scots pine (Pinus sylvestris L.), Douglas fir (Pseudotsuga menziesii (Mirb.)) and Norway spruce wood [16,17]. Higher technical quality (by means of the mechanical properties of wood) was identified in the case of wood from forest lands, compared to post-agricultural lands.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Scots Pine Log Type (Pinus sylvestris L.) on the Mechanical Properties of Lumber

Krzosek

Burawska-Kupniewska

Mankowski

2020

Forests

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The paper presents an analysis of the influence of geographical origin and Scots pine log type on the mechanical properties of the timber sawn from them. The tested timber was sawn from logs obtained from three different forestry regions in Poland, located in the western part of the country. A batch of 150 timber pieces was obtained from each region. The cross-section had the dimensions of 40 mm × 138 mm. The timber was sawn from logs of three different types: butt, middle and top, from a fresh, mixed forest around 120 years old. The timber was dried in industrial conditions and planed four times. The values determined for the timber under research were the static modulus of elasticity in bending (MOE), and the bending strength (MOR). Moreover, timber density (DEN) was determined with the stereometric method. For all three sites, the highest average values of the tested timber properties were obtained for timber made of butt logs, and the lowest for timber made of top logs. It was concluded that the tested Scots pine properties depended on the type of log, and to limited extent, on its geographic origin. The statistical analysis revealed that the geographic origin of the logs that the tested timber was made of had a statistically significant impact on the variance of all the tested timber properties. The type of log also had a statistically significant influence on the variance of all the tested properties.

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Comparison of Wood Quality of Douglas Fir and Spruce from Afforested Agricultural Land and Permanent Forest Land in the Czech Republic

Cited by 21 publications

References 27 publications

Climate Response of Douglas Fir Reveals Recently Increased Sensitivity to Drought Stress in Central Europe

Climate Response of Douglas Fir Reveals Recently Increased Sensitivity to Drought Stress in Central Europe

Interspecific variation in growth and tree water status of conifers under water-limited conditions

The Influence of Scots Pine Log Type (Pinus sylvestris L.) on the Mechanical Properties of Lumber

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