Monthly Archive:: March 2015
21 Mar 2015
“50 years Annals of Forest Science”: Fifty years of genetic studies: what to make of the large amounts of variation found within populations?
Determining the sources and role of intra-specific genetic variation is a classical focus of evolutionary biology (Mitchell-Olds et al. 2007). Ever since the beginning of population genetic studies in forest trees, the observation of high levels of
21 Mar 2015
Recommendations for the use of tree models to estimate national forest biomass and assess their uncertainty
Three options are proposed to improve the accuracy of national forest biomass estimates and decrease the uncertainty related to tree model selection depending on available data and national contexts. Different tree volume and biomass equations result in
21 Mar 2015
An overview of existing and promising technologies for national forest monitoring
The main goal of national forest programs is to lead and steer forest policy development and implementation processes in an inter-sectoral way (FAO 2006). National forest monitoring systems contribute to forest programs through monitoring forest changes and
21 Mar 2015
Overcoming obstacles to sharing data on tree allometric equations
Advances in ecology face the complexity of ecosystems with dynamics longer than a single scientist’s career. In forestry and REDD+ practice, in particular, our ability to understand forest ecosystem dynamics and to manage them for mitigation and
21 Mar 2015
“50 years Annals of Forest Science”: Can mosses serve as model organisms for forest research?
Based on their impact on many ecosystems, we review the relevance of mosses in research regarding stress tolerance, metabolism, and cell biology. We introduce the potential use of mosses as complementary model systems in molecular forest research,
17 Mar 2015
Modeling tree mortality for fir, oak, and birch
By Marianne Peiffer On 17 March 2015 In Research paper
Climate variables improve individual-tree mortality models for fir, oak and birch. Climate is considered as an important driver of tree mortality, but few studies have included climate factors in models to explore their importance for modelling individual-
13 Mar 2015
C depletion and tree dieback in young peach trees: a possible consequence of N shortage?
By Erwin Dreyer On 13 March 2015 In Non classé
Bud burst disruption, carbon depletion and tree dieback in spring were experimentally linked to N shortage the previous autumn. Dieback occurred despite tree N concentrations were compatible with plant survival: their N stores being blocked in the
13 Mar 2015
Phosphorus nutrition of beech (Fagus sylvatica L.) is decreasing in Europe
Foliar phosphorus concentrations have decreased in Europe during the last 20 years. High atmospheric nitrogen deposition and climate change might be responsible for this trend. Continued decrease in foliar P concentrations might lead to reduced growth and vitality
13 Mar 2015
A novel method to correct for wood MOE ultrasonics and NIRS measurements on increment cores in Liquidambar styraciflua L
Ultrasounds overestimate the MOE value. This paper analyses the causes of this difference and opens the perspective for a novel method allowing the calculation of the correct MOE from ultrasounds or NIRS measurements on cores. Standardized methods
5 Mar 2015
The effects of thinning intensity and tree size on the growth response to annual climate in Cedrus atlantica: a linear mixed modeling approach
With a retrospective growth analysis over 20 years, we showed that silviculture (in particular thinning) of Cedrus atlantica (Manetti) could to some extent mitigate the effects of drought episodes. Severe reductions of density resulted in faster recovery of
