Non classé Archive
17 Apr 2016
Understory fine roots are more ephemeral than those of trees in subtropical Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) stands
We tested the life span of fine roots of Chinese fir trees and understory plants in two stands in subtropical China. Fine roots from understory plants were much more ephemeral than those from trees. The life span
25 Nov 2015
Provenance and seed mass determine seed tolerance to high temperatures associated to forest fires in Pinus pinaster
We show that Pinus pinaster provenance affects both seed germination and seedling recruitment after fire. This information is crucial for managers to select the best seed-provisioning populations when implementing reforestation programs to assist the natural post-fire regeneration
21 Sep 2015
Integrating risk preferences in forest harvest scheduling
By Erwin Dreyer On 21 September 2015 In Non classé
Through a stochastic programming framework, risk preferences can be included in forest planning. The value of utilizing stochastic programming is always positive; however, the value depends on the information quality and risk preferences of the decision maker.
15 May 2015
“50 years Annals of Forest Science”: Temperate and boreal forest tree phenology: from organ-scale processes to terrestrial ecosystem models
We demonstrate that, beyond leaf phenology, the phenological cycles of wood and fine roots present clear responses to environmental drivers in temperate and boreal trees. These drivers should be included in terrestrial ecosystem models. Abstract In temperate
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
14 Feb 2015
Life after disturbance: changes in the spatial genetic structure of Jacaranda copaia after logging in French Guiana
Forest disturbance affects the within-population distribution of genetic diversity, but not its overall levels, in a tropical pioneer tree species. In particular, clumps of related saplings with impoverished diversity are found in canopy gaps but not under
31 Jan 2015
Estimating solid wood properties using Pilodyn and acoustic velocity on standing trees of Norway spruce
Strong genetic correlations were observed between Pilodyn measurement and wood density, and between acoustic velocity and MFA. Combination of Pilodyn penetration and acoustic velocity measurements from standing trees can provide reliable prediction of stiffness of Norway spruce
1 Nov 2014
Improving the robustness of biomass functions: from empirical to functional approaches
By Erwin Dreyer On 1 November 2014 In Non classé
Ablo Paul Igor Hounzandji, Mathieu Jonard, Claude Nys , Laurent Saint-André and Quentin Ponette Earth and Life Institute, Environmental Sciences, UCL, Croix du Sud, 2, box L7.05.09, 1348 Louvain-la-Neuve, Belgium; UR1138, Unité Biogéochimie des Ecosystèmes Forestiers (BEF), Centre INRA de Nancy, INRA, 54280 Champenoux, France; CIRAD, UMR
20 Sep 2014
Tomography in standing trees: revisiting the determination of acoustic wave velocity
Andrés ARCINIEGAS, Loïc BRANCHERIAU and Philippe LASAYGUES CNRS, LMA UPR 7051, Marseille, France; CIRAD, UR BioWooEB – UMR AMAP, Montpellier, France Email: loic.brancheriau at cirad.fr Key message Wood acoustic velocity determination is affected by the wavelength and the detection algorithm
20 Sep 2014
Satellite data as indicators of tree growth and dieback in a Mediterranean holm oak forest
Romà OGAYA, Adrià BARBETA, Corina BASNOU and Josep PENUELAS CREAF, Cerdanyola del Vallès, E-08193, Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CEAB-CSIC, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193, Catalonia, Spain Email: r.ogaya at creaf.uab.cat In the framework of climate change,