Báo cáo lâm nghiệp:"Growth and biomass partitioning of Fagus sylvatica L and Quercus robur L seedlings in response to shading and small changes in the R/FR-ratio of radiation" pot
Báo cáo lâm nghiệp: " On the niche breadth of Fagus sylvatica: soil nutrient status in 50 Central European beech stands on a broad range of bedrock types" potx
... significantly lower P availability in the basic calcareous substrates than in the acidic sandstone and sandy soils (Tab. III). The pool of exchangeable Ca + Mg + K in the mineral topsoil was very small ... claystones (4.7 to 5.3) and the sand- stone, sand and loess sites (3.3 to 4.3) to the glacial sands and loams (3.3 to 3.7, Fig. 1a). The increase in...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Analyse multivariable quelques caractères morphologiques de populations de chênes (Quercus robur L. et Quercus petraea (Matt.) Liebl.) du Hurepoix de." pps
... trees belonging to the Quercus petraea taxon and these of the Quercus robur taxon. Differential characters are peduncle length, petiole length and auricles angle. None ... détachent nettement. Summary Multivariate analysis of .some morphological chctracters of oak (Quercus robur L. azzd Quercus petraea (Matt.) Liebl.) populations in th...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp:"Growth and biomass partitioning of Fagus sylvatica L. and Quercus robur L. seedlings in response to shading and small changes in the R/FR-ratio of radiation" pot
... 10.1051/forest:2003009 Original article Growth and biomass partitioning of Fagus sylvatica L. and Quercus robur L. seedlings in response to shading and small changes in the R/FR-ratio of radiation Christian Ammer* Lehrstuhl ... seedlings of Fagus sylvatica L. , Tree Physiol. 17 (1997) 133–140. [52] Welander N.T., Ottosson B., The influenc...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Growth versus storage: responses of Mediterranean oak seedlings to changes in nutrient and water availabilities." ppsx
... continental Mediterranean (Fig. 1). Seedlings emerged by the end of April, and were regu- larly watered with no fertilizers till the second week of May 2002. Seedlings were maintained in the ... 3). Regarding nitrogen response, all species increased [N] of the whole plant and each fraction in response to fertilization, whereas N pool only increased from LF to...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Croissance rythmique et développement du chêne rouge d’Amérique, Quercus rubra L, cultivé en conditions contrôlées" pps
... outre l effeuillage, reçoit de l eau distillée, - le quatrième est effeuillé complètement et reçoit une solution de GA 3 à 50 mg .L - 1, - le cinquième est effeuillé complètement et ... une rythmicité annuelle durant leur cycle de dé- veloppement (Barnola et al, 1977 ; Lava- renne et al, 1986 ; Collin et al, 1995). Il existe ainsi une grande di...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiêp: "Morphologie architecture des jeunes hêtres (Fagus sylvatica L.) Influence du milieu, variabilité génétique et" pps
... of light, of nutrients, of space. Planting techniques including sl>acing, fertilization and early thinnings should be closely adapted to soil fertility, water supply and ... sea level, in Aigoual Mountains, Southern France. 45 areas, each containing 30 seedlings. were sampled under 3 light levels corresponding to 3 levels of canopy cov...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: "Growth and physiological state of beech seedlings grown in a nursery in different light conditions" docx
... tested in further research. References A C. (2003): Growth and biomass partitioning of Fagus sylvatica L. and Quercus robur L. seedlings in response to shading and small changes in the R/FR-ratio ... rate and more intensive growth of these seedlings. The transfer of seedlings from full sun to shade resulted only in small chang...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation" docx
... acquisition in a developing Populus deltoides plantation, Tree Physiol. 24 (2004) 1347−1357. [13] Coll L. , Balandier P., Picon-Cochard C., Morphological and phys- iological response of beech (Fagus sylvatica) ... the time longleaf pine seedlings are in the grass stage and increase height growth, New For. 19 (2000) 279−290. [31] King J.S., Albaugh T.J., Allen H .L. , Kres...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Growth trends reveal the forest structure during Roman and Medieval times in Western Europe: a comparison between archaeological and actual oak ring series (Quercus robur and Quercus petraea)" pot
... archaeological sites using dendrological, dendrochronological and techno-morphological criteria. Sin- gle series with similar cambial age and growth trend are assem- bled into so-called local dendro-groups. ... Pinus pinaster Aiton) was selected as well. Within the 106 ha forest reserve Mattemburgh, in the municipality of Woensdrecht (The Netherlands) close to the Bel- gian b...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp:"Growth, damage and net nitrogen uptake in Picea abies (L.) Karst. seedlings, effects of site preparation and fertilisation" pptx
... result of different activity levels of the decomposers in the soil organic matter. The cooling of the soil in autumn starts at the top of the soil profile, and since the soil organic matter in the ... determined using a Carlo Erba NA1500 elemental analyser (Carlo Erba Strumentazione, Milan, Italy). The biomass of the seedlings remaining in the plo...
Ngày tải lên: 08/08/2014, 01:21