Báo cáo lâm nghiệp: "Comparaison par simulation de 3 types d’unités d’échantillonnage en futaies feuillues de hêtre (Fagus silvatica L )" pps
Báo cáo lâm nghiệp: "Comparaison par simulation de 3 types d’unités d’échantillonnage en futaies feuillues de hêtre (Fagus silvatica L.)" pps
... installés en futaie feuillue de hêtre visait à comparer 3 types d’unités d’échantillonnage définies par le mode de sélection des arbres. Nous avons comparé des placettes ... par P RODAN (1968), bien que dans ces deux cas, leur grandeur soit fonction des densités locales des peuplements l ’J. 2 .3. Mi.se en oeuvre des modalités d’éch...
Ngày tải lên: 09/08/2014, 02:21
Báo cáo lâm nghiệp: " Comparison of the hygroscopic behaviour of 205-year-old and recently cut juvenile wood from Pinus sylvestris L." pps
... of the “xylan” ring. 2 Vibrations of the benzene ring in the lignin. 3 Deformation in both the cellulose and the hemicellulose. x x Table IV. Crystallite length L hkl and crystallinity indices ... infrarouge et la diffractométrie par rayons X- ont été utilisées pour étudier d’éventuelles différences de composition chimique et d’indices de cristallinité de la paroi cellulaire. La...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Management criteria for Ficus insipida Willd. (Moraceae) in Amazonian white-water floodplain forests defined by tree-ring analysis" pptx
... 31 (1979) 26 38 . [24] Pretzsch H., Modellierung des Waldwachstums, Parey Buchverlag, Berlin, 2001. [25] Rozas, V., Dendrochronology of pedunculate oak (Quercus robur L. ) in an old-growth pollarded ... Central Amazon floodplains. Ecology of a pulsing sys- tem, Springer Verlag, Berlin-Heidelberg-New York, 1997, pp. 2 23 266. [41] Worbes M., Annual growth rings, rainfall-dependent growth an...
Ngày tải lên: 07/08/2014, 16:21
![Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx](https://media.store123doc.com/images/document/2014_08/07/medium_kdi1407381717.jpg)
Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx
... recommend to cultivate all seedlings including smaller outsorted (commonly culled) ones. e smallest seedlings can be grown one year longer and subsequently planted out in the same locality ... 16 .3 a 18 .3 a S x 5 .35 4 4.877 4.662 4.998 7.067 n 32 30 32 32 31 2004 mean 36 .6 b 35 .0 a 27.4 a 38 .7 a 43. 7 a S x 13. 296 9.928 12.860 12.657 12. 131 n 28 30 30 30 28 e lette...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: " Changes of the mixed mountain virgin forest after 70 years on a permanent plot in the Ukrainian Carpathians" pps
... 1.0 ActaSpic AdoxMosc AnemNemo AthyFili DentBulb DoroAust DryoFili EpilMont GaleLute GaleGran GaliOdor GentAscl GeraRobe HellPurp LiliMart OxalAcet PetaAlbu PolyAcul PulmObsc RanuDent RubuHirt SalvGlut SeneOvat StelNemo SympCord 1 _34 1_06 2 _34 2_06 3_ 34 3_ ... original polygon points and so called “detailed” points, where phytosociologi- cal relevés were subsequently recorded and soil...
Ngày tải lên: 07/08/2014, 10:22
Báo cáo lâm nghiệp: "Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes" pps
... Evolutionary significance of phenotypic plasticity in plants, Adv. Genet. 13 (1965) 115–155. [8] Climent J., Gil L. , Pérez E., Pardos J.A., Efecto de la procedencia en la supervivencia de plántulas ... Phenotypic plasticity in plants: a case study in ecolog- ical development, Evol. Dev. 5 (20 03) 25 33 . [ 43] Tapias R., Climent J., Pardos J.A., Gil L. , Life histories of Mediterrane...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effect of an oil heat treatment on the leachability and biological resistance of boric acid impregnated wood" pps
... xylophages. Les huiles végétales permettent de retenir environ 30 % du bore initial selon leurs propriétés de séchage. Ainsi, l huile de lin est plus efficace que les huiles de soja et de colza. ... Sci. 33 (19 73) 28 37 . [4] Dumonceaud O., Petits bois naturellement durables dans des usages extérieurs en vue de limiter l emploi des traitements par les pesti- cides : problè...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Productivity of Pinus elliottii, P. caribaea and their F1 and F2 hybrids to 15 years in Queensland, Australia" ppsx
... ; cependant les différences entre Pinus caribaea var. hondur ensis et les hybrides étaient généralement faibles. En utilisant une fréquence relative des trois types de sites sur l aire de plantation ... heritabil- ities and genotype-by-environment interactions for growth traits and wood density from clonal trials of Eucalyptus grandis Hill ex Maiden, Silvae Genet. 50 (2001) 30 37 . [...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Genetic variation of wood density components in a radiata pine progeny test located in the south of Chile" pps
... Chili. Cet article décrit l évolution en fonction de l age cambial de la variabilité génétique de composantes de la densité intra-cerne et des relations entre ces caractères et des composantes de ... lower density, larger lumens, and thinner cell walls than latewood [16], and to some extent by a greater cell size [41]. As a result, earlywood pulps are very different from those m...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: " Influence of environmental conditions on radial patterns of sap flux density of a 70-year Fagus crenata trees in the Naeba Mountains, Japan" ppsx
... – Influences des conditions environnementales sur les patrons radiaux de densités de flux de sève de Fagus crenata âgés de 70 ans dans les montagnes de Naeba au Japon. La densité de flux de sève ... changements de valeur relative de l épaisseur du xylème. La variation du patron radial de SFD jour sous différentes conditions environnementales était exprimable par le d...
Ngày tải lên: 08/08/2014, 00:21