Author Archive
20 Feb 2019
Inbreeding depression and differential maladaptation shape the fitness trajectory of two co-occurring Eucalyptus species
By Isabelle Fabrissin On 20 February 2019 In All published articles, Data in repository, Research paper
The fitness trajectory of long-lived forest species with mixed mating systems is shaped by a dynamic interplay between endogenous (inbreeding depression) and exogenous (environmental maladaptation) factors. Using two eucalypt species, we show that the timing and translation
19 Feb 2019
Global change impacts on forest and fire dynamics using paleoecology and tree census data for eastern North America
By Isabelle Fabrissin On 19 February 2019 In All published articles, Research paper, Special issue/Topical collection
The tree census, paleopollen, fossil charcoal, human population, and climate data presented here provide unique support for important anthropogenic influences on fire over the last 2000 years in the eastern USA. This includes multiple instances of climate
14 Feb 2019
Single-image photogrammetry for deriving tree architectural traits in mature forest stands: a comparison with terrestrial laser scanning
We compared two methods for detailed individual tree measurements: single image photogrammetry (SIP), a simplified, low-cost method, and the state-of-the-art terrestrial laser scanning (TLS). Our results provide evidence that SIP can be successfully applied to obtain accurate
14 Feb 2019
Physiological and biochemical responses of Eucalyptus seedlings to hypoxia
Hypoxia promoted distinct changes in the levels of hormones, amino acids and organic acids in the roots and shoots of a seedling from 2 Eucalyptus clones. These results indicate that modulation of hormone production, as well as
13 Feb 2019
The effect of thinning on mechanical properties of Douglas fir, Norway spruce, and Sitka spruce
Thinning affects negatively the quality of sawn timber of Douglas fir, Norway spruce, and Sitka spruce. The effect was confirmed in structural-sized boards and small clear samples, and on standing trees using longitudinal velocity. The loss of
12 Feb 2019
Evidence of climate effects on the height-diameter relationships of tree species
By Isabelle Fabrissin On 12 February 2019 In All published articles, Data in repository, Research paper, Special issue/Topical collection
The mean temperature from March to September affects the height-diameter relationship of many tree species in France. For most of these species, the temperature effect is nonlinear, which makes the identification of an optimal temperature possible. Increases
8 Feb 2019
Soil aggregation may be a relevant indicator of nutrient cation availability
Aggregation was studied in two acidic forest soils (NE France) to investigate the potential link between available Ca and Mg content and soil aggregate size distribution and properties. Clay content influenced the aggregation status while clay mineralogy
8 Feb 2019
Performance of strength grading methods based on fibre orientation and axial resonance frequency applied to Norway spruce (Picea abies L.), Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) and European oak (Quercus petraea (Matt.) Liebl./Quercus robur L.)
Machine strength grading of sawn timber is an important value adding process for the sawmilling industry. By utilizing data of local fibre orientation on timber surfaces, obtained from laser scanning, more accurate prediction of bending strength can
8 Feb 2019
Below-ground hydraulic constraints during drought-induced decline in Scots pine
By Isabelle Fabrissin On 8 February 2019 In All published articles, Data in repository, Research paper
Below-crown hydraulic resistance, a proxy for below-ground hydraulic resistance, increased during drought in Scots pine, but larger increases were not associated to drought-induced defoliation. Accounting for variable below-ground hydraulic conductance in response to drought may be needed
8 Feb 2019
Can forest structural diversity be a response to anthropogenic stress? A case study in old-growth fir Abies alba Mill. stands
From 1973 to 1991, Polish SO2 emissions above 3250 Gg/year resulted in a decline of fir Abies alba Mill. After stresses connected with these emissions, five main diameter at breast height (DBH) structural types were described. This