Báo cáo lâm nghiêp: "Etude de la sectorisation des souches de châtaignier (Castanea sativa Mill ) à l’aide d’eau tritiée" pptx

Báo cáo lâm nghiệp: "Paramètres structuraux et/ou ultrastructuraux facteurs de la variabilité intra-arbre de l’anisotropie élastique du bois" pptx

Báo cáo lâm nghiệp: "Paramètres structuraux et/ou ultrastructuraux facteurs de la variabilité intra-arbre de l’anisotropie élastique du bois" pptx

... quinconce des cellules. La souplesse exprimée en ( 6) résulte de la combinaison de la souplesse des éléments AB, FE et CD de la maille sollicités en traction-compression et de celle de l’élément de paroi ... l’AMF de la seule paroi de bois final, qui passe de ϕ = 10 à 8,5 degrés. La sensi- bilité des caractéristiques élastiques à ce paramètre est trè...

Ngày tải lên: 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Nodulation in vitro et étapes précoces de l’infection rhizobienne chez Acacia albida (syn Faidherbia albida)" ppt

Báo cáo lâm nghiệp: "Nodulation in vitro et étapes précoces de l’infection rhizobienne chez Acacia albida (syn Faidherbia albida)" ppt

... sur des nodules jeunes (âgés de 2 semaines environ) et des nodules matures (4 semaines et au-del ). RÉSULTATS Effet de la date de l’inoculation Cinétique de la nodulation En ... logiciel de statistique (Anova) en utilisant les tests de Fischer, de Sheffé et Dunnett. Concernant l’étude des stades précoces de l’infection rhizobienne, des...

Ngày tải lên: 08/08/2014, 18:21

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Báo cáo lâm nghiệp: "Effects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

Báo cáo lâm nghiệp: "Effects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

... 120 80 60 40 20 0 80 60 40 20 0 80 60 40 20 0 80 60 40 20 0 80 60 40 20 0 x (m) x (m) x (m) x (m) x (m) y (m) y (m) y (m)y (m)y (m) Fig. 1. Spatial patterns of the assessed envi- ronmental variables over ... model, 2 to the exponential model and 1 to the Gaussian model (Fig. 2).  e analysis of data under the classical RCB design brought expected outcomes (Table 1).  e eff ect of prov...

Ngày tải lên: 07/08/2014, 10:21

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Báo cáo lâm nghiệp: " Soil and plant communities development and ecological effectiveness of reclamation on a sand mine cast" ppt

Báo cáo lâm nghiệp: " Soil and plant communities development and ecological effectiveness of reclamation on a sand mine cast" ppt

... (2.39 3) 0.618 8.6 0.677 (0.51 5) 18.912 (1.19 0) 19.589 1.754 7.836 2.78 25 4.640 (3.60 1) 1.401 12.0 0.857 (0.66 4) 18.191 (4.44 6) 19.048 3.535 7.619 1.64 R 5 3.912 (2.60 7) np np 0.130 (0.08 0) np ... accumu- lation in soils developing under communities. In the latter case, the reclamation treatment significantly accelerated energy accumulation in biomass in rela-...

Ngày tải lên: 07/08/2014, 10:22

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Báo cáo lâm nghiệp: " Changes of the mixed mountain virgin forest after 70 years on a permanent plot in the Ukrainian Carpathians" pps

Báo cáo lâm nghiệp: " Changes of the mixed mountain virgin forest after 70 years on a permanent plot in the Ukrainian Carpathians" pps

... in the tree layer were described using the 5-degree scale of tree layer stratification according to Zlatník (R et al. 198 6). We transformed all the scientific names of plants according ... caprea, Betula pendula, Ulmus glabra) occur only scarcely J. FOR. SCI., 55, 2009 (1 2): 567–577 575 right (the terms “increased” and “decreased” species relate to their abundance). e basic...

Ngày tải lên: 07/08/2014, 10:22

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Báo cáo lâm nghiệp: "How do lepidopteran seasonal guilds differ on some oaks (Quercus spp.) – A case study" pdf

Báo cáo lâm nghiệp: "How do lepidopteran seasonal guilds differ on some oaks (Quercus spp.) – A case study" pdf

... robur 1 Q. robur 2 Q. rubra Number of individuals Flush Feeders Late Spring feeders Summer feeders Autumn feeders b b b (b)(a) (d) (c) 0 5 10 15 20 25 30 Q. petrea Q. robur 1 Q. robur 2 Q. rubra Number ... univoltine 7–9 Gelechiidae Teleiodes paripunctellus (THUNBERG, 179 4) Quercus spp., Betula spp. no spun leaves, skeletonize univoltine 4–6 Teleiodes luculellus (HÜBNER, 181 3) Quercus...

Ngày tải lên: 07/08/2014, 10:22

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Báo cáo lâm nghiệp: "New insights in the recognition of the European ash species Fraxinus excelsior L. and Fraxinus angustifolia Vahl as useful tools for forest management" pdf

Báo cáo lâm nghiệp: "New insights in the recognition of the European ash species Fraxinus excelsior L. and Fraxinus angustifolia Vahl as useful tools for forest management" pdf

... étudié des caractéristiques moléculaires, morphologiques et physiologiques qui pourront se révéler très utiles à la détection de la présence de F. angus tifolia à l’échelle populationnelle, dans des ... moins de place dans la graine que ceux de F. angustifolia. Cette étude permet de fournir des outils rapides et efficaces qui pourront permettre d’éviter d’éventuels pro...

Ngày tải lên: 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Seasonal ionic exchange in two-layer canopies and total deposition in a subtropical evergreen mixed forest in central-south China" pps

Báo cáo lâm nghiệp: "Seasonal ionic exchange in two-layer canopies and total deposition in a subtropical evergreen mixed forest in central-south China" pps

... 285.0 ∗ 28.8 ∗ 51.1 ∗∗ 31.7 ∗∗ 121.9 ∗ 66.7 ∗∗ 37.7 ∗ 20.5 ∗ (0. 3) (16. 4) (3. 9) (6. 9) (4. 6) (12. 3) (5. 9) (5. 1) (4. 6) Summer BP 4.3 85.0 ∗∗ 18.5 ∗∗ 7.4 ∗ 15.7 ∗ 66.5 ∗∗ 24.9 ∗ 1.6 ∗ 57.3 ∗ (0. 1) (5. 6) (2. 1) (0. 5) (2. 0) (4. 7) (3. 7) (0. 3) (6. 2) (Jun.∼Aug .) ... 25.3 ∗∗ 7.4 ∗∗∗ 5.6 ∗ 7.0 ∗ 30.5 ∗∗ 25.1 ∗ 6.9 ∗ 6.8 ∗ (0. 2...

Ngày tải lên: 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Modelling of the shape of red heartwood in beech trees (Fagus sylvatica L.) based on external tree characteristics" potx

Báo cáo lâm nghiệp: "Modelling of the shape of red heartwood in beech trees (Fagus sylvatica L.) based on external tree characteristics" potx

... w i ( 1); – Equation ( 2): k 0 ( 1), h i (m), l i (m); – Equation ( 3): k  1 ( 1), k  2 ( 1), k  3 ( 1), k  4 ( 1), h i (m), w i ( 1); – Equation ( 7): k  1 ( 1), k  2 ( 1), k  3 ( 1), k  4 ( 1), h a (m), ... h kamax (m); height of the knot with minimum depth: h kdmin (m) – Red heart: mean red heart radius: r mean (mm). Units of parameters – Equation ( 1...

Ngày tải lên: 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Genetic variability and divergence among Italian populations of common ash (Fraxinus excelsior L.)" ppt

Báo cáo lâm nghiệp: "Genetic variability and divergence among Italian populations of common ash (Fraxinus excelsior L.)" ppt

... une petite partie de la variation, il est possible d’observer des regroupements partiels de populations appartenant aux mêmes régions. La contribution de ces résultats à la définition des stratégies ... F IS de 0,284. Des explications possibles pour de telles situations sont proposées. Seulement 4,9 % de toute la diversité est attribuable à la différenciation ent...

Ngày tải lên: 07/08/2014, 16:20

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