Báo cáo lâm nghiệp: " The influence of Picea abies on herb vegetation in forest plant communities of the Veporské vrchy Mts" ppt

... reaction Nutrients 0.3 –0.6 –1.0 1.0 Fig. 2. Relation between the proportion of Picea abies and other variables including EIV (CCA with the proportion of Picea abies as the only environmental ... based on comparing the composition of herb species within three groups of relevés. e groups are created with reference to the proportion of Picea abies in tree...

Ngày tải lên: 07/08/2014, 10:21

... existing crown fire models can be found in Pastor et al. [60]. Aleppo pine canopy fuels and crown fire behavior 297 crown fires [76]. The CBD distribution in the fuel profiles of Aleppo pine stands indicate ... load distribution in uneven aged Aleppo pine stands. Aleppo pine canopy fuels and crown fire behavior 289 2.2.1. Cro wn fire initiat...

Ngày tải lên: 07/08/2014, 16:20

... RGP and field performance in Aleppo pine 547 Table VI. Significant (p-value < 0.05) regression models fitted for seedling field performance in both sites (Enguera and La Hunde) and RGP or ... carbohydrates and root growth potential (RGP) following standard methods [23] (Tab. II). Total root length (cm), root average diameter (cm), number of root tips and...

Ngày tải lên: 07/08/2014, 16:21

... alterna- tives for Scots pine stands in northern Spain, Ann. For. Sci. 61 (2004) 163–169. [7] Bravo F., Montero G., Site index estimation in Scots pine (Pinus sylvestris L.) stands in the High Ebro Basin ... INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005006 Original article Site quality equations for Pinus sylvestris L. plantations in Galicia (northwest...

Ngày tải lên: 08/08/2014, 00:21

... petraea Liebl.) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France Laurent BERGÈS a *, Richard CHEVALIER a , Yann DUMAS a , Alain ... water and nutrient budgets in predicting site index variations The climate/water-related factors and nutrient-related fac- tors explained 0 to 25...

Ngày tải lên: 08/08/2014, 00:22

... carried out in the morning between 07 00 and 12 00 h in the forest understorey and between 07 00 and 10 00 h in the clearing to avoid a mid-day stomatal closure. During the A-PPFD responses, the mean ... structure and functional leaf traits in the tropical forest tree Dicorynia guianensis Amshoff (Caesalpiniaceae) Jean Christophe ROGGY a *...

Ngày tải lên: 08/08/2014, 00:22

... article Daylength, temperature and fertilization effects on desiccation resistance, cold hardiness and root growth potential of Picea mariana seedlings Stephen J. COLOMBO a *, Chris GLERUM a † and D. ... the effect of temperature, fertilizer application, and daylength on the development of needle primordia in buds, desiccation resistance, col...

Ngày tải lên: 08/08/2014, 01:21

... 327335 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004026 Original article A flexible radial increment model for individual trees in pure even-aged stands Christine DELEUZE a *, Olivier PAIN a , ... various individual growth models for trees in pure and even-aged stands, a generic model with a form parameter according to each species is proposed. With a f...

Ngày tải lên: 08/08/2014, 01:21

... PRÉVISIONNELS DE L’ANISOTROPIE ÉLASTIQUE Valider la pertinence de la pyramide des modèles introduits au chapitre précédent pose deux classes de problèmes. Il con- vient, d’une part, de disposer de valeurs ... original Paramètres structuraux et/ou ultrastructuraux facteurs de la variabilité intra-arbre de l’anisotropie élastique du bois Daniel GUITARD,...

Ngày tải lên: 08/08/2014, 01:22

... but Short note Insect damage to cones and other mortality factors limiting natural regeneration potential of Swiss stone pine (Pinus cembra L) in the northern French Alps L ... seed cones of P cembra, and then to measure the respective impact of insects and other mortality factors on the potential of natural...

Ngày tải lên: 08/08/2014, 18:21

... trig- gering the stomatal closure, and ii) what are the functions of the stomatal regulation? Original article Whole tree hydraulic conductance and water loss regulation in Quercus ... embolism in xylem. Plant Cell Environ 11, 35-40 Tardieu F, Davies WJ (1993) Integration of hydraulic and chemical signaling in the control of s...

Ngày tải lên: 08/08/2014, 18:21

... Tardieu and Davies, 1992) and related to reductions in leaf water potential (Tardieu and Davies, 1993). They might be of importance during gradually increasing and long-lasting ... take into account changes in the compartmen- tation of ABA both in leaves and in roots, transport from roots to leaves in the xylem sap, and from leaves to...

Ngày tải lên: 08/08/2014, 18:21

... experiment 1. Original article Sessile oak seedling fertilization and leaf mineral composition in western France M Bonneau Département des recherches forestières, Centre Inra de Nancy, ... of N and Ca to adult stands. ii) A short-term objective was to investigate responses of young oak seedlings to mineral fertilization and to more...

Ngày tải lên: 08/08/2014, 18:21

... Light-quality and -quantity effects on monoterpene-medi- ated photo-bleaching of conifer needles J. Franzen 1 K. Gross 2 M. Bonzon 3 E. Wagner 1 Institutes of I Biology 11 and 2 Silviculture, ... and young plants with P-pinene resulted in a monoter- pene concentration- and photofluency- dependent destruction of chloroplast pig- ments resembling t...

Ngày tải lên: 09/08/2014, 04:20

... Apoplast: a sensitive site for assessing some biochemical effects of O3 or SO 2 in Norway spruce needles G. Ogier, F.J. Castillo H. Greppin Laboratory of Plant Biochemistry ... the data were obtained from grafted saplings originating from the same clone and the total dose for this long-term 03 fumigation was 200 ppm/h. Apparently, extracel...

Ngày tải lên: 09/08/2014, 04:20