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Báo cáo lâm nghiệp: "Compression stress in opposite wood of angiosperms: observations in chestnut, mani and poplar" ppsx

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Báo cáo lâm nghiệp: "Ecological conditions influencing the localization of egg-laying by females of the cockchafer (Melolontha hippocastani F.)" pps

... relation between the extent of the damage and the individual characteristics of the experimental plots. e relation between the extent of the damage and the method of estab-lishment of the stands ... explored the ecological conditions, which influence the female Melolontha hippocastani F. in their selection of the locality for laying eggs. In the region of mass outbreak of M. hippocastani in the ... SCIENCE, 53, 2007 (Special Issue): 16–24Ecological conditions influencing the localization of egg-laying by females of the cockchafer (Melolontha hippocastani F.)M. ŠForestry and Game Management...
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Báo cáo lâm nghiệp: "Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands" potx

... 526/03/H036.Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest standsP. S1, ... 1992). Norway spruce (Picea abies [L.] Karst.) is the main edificator and stand-forming tree species in mountain spruces stands of Central Europe. e timberline is running quite near the Praděd ... analysis of variance (MANOVA) was applied. CLU and MANOVA were used to evaluate the close-ness of the nutrient status of the spruce stands and to assess the closeness of chemical properties of the...
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Báo cáo lâm nghiệp: "A pheasantry as the habitat of small terrestrial mammals (Rodentia, Insectivora) in southern Moravia (Czech Republic)" doc

... study of the synusiae of small terrestrial mammals of pheasantries in southern Moravia is therefore aimed at monitoring the effect of specific properties of these habitats (high diversity of biotopes, ... supplementary food in the form of feeding for pheasants. Moreover, in the region of southern Moravia, pheasantries represent isolated areas of woody vegetation in the middle of intensive-ly managed ... fall was probably caused by changes in the water regime in floodplain forests after 1972 (Z 1991). e general decrease of Soricidae in southern Moravia during the last 40 years was obvi-ously...
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Báo cáo lâm nghiệp: "Forest transport roads according to natural forest regions in the Czech Republi" pps

... addition to them other roads also contain rural roads. e total length of single grades of forest transport roads in forests in the Czech Republic was rated dur-ing the forest inventory in the Czech ... classification forest transport roads are divided, in addition to grades, into forest roads and other roads leading through the forest. e main parts of other roads take especially public roads; in addition ... of forest transport roads and the density of forest opening by forest transport roads are two important indexes of forest transport network. Con-trary to their length the density of forest transport...
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Báo cáo lâm nghiệp: "Compression stress in opposite wood of angiosperms: observations in chestnut, mani and poplar" ppsx

... involved measurements of RGS and longitudinal drying shrinkage, and were presented in de-tails in previous papers [10, 11]. New data on poplar are also shown,including measurements of RGS and ... contin-uum in behaviour from the “normally” tensile stressed wood to the compression stressed wood. Inside the group of nor-mal wood samples (including compression values), RGS and longitudinal ... 10.1051/forest:2006032Original articleCompression stress in opposite wood of angiosperms: observations in chestnut, mani and poplarBruno Ca,b*, Tancrède Ac, Junji SaaLaboratory of Biomass...
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Báo cáo lâm nghiệp: "Linking intra-tree-ring wood density variations and tracheid anatomical characteristics in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)" pot

... explains intra-tree-ring wood density change, and (2)sorting out tracheid anatomical characteristics in order of im-portance.The work was carried out with Douglas fir (Pseudotsuga menziesii (Mirb.) ... between wood den-sity and tracheid characteristics along a tree-ring, i.e. on intra-tree-ring variations. However, it is also interesting from thesedata to investigate how wood density and tracheid ... 2006)Abstract – In this study, a geometric approach was used in order to model the relationships between intra-tree-ring wood density variations and tracheid anatomical characteristics. One Douglas fir was...
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Báo cáo lâm nghiệp: "Evaluation through a simulation model of nutrient exports in fast-growing southern European pine stands in relation to thinning intensity and harvesting operations" doc

... and SG-ratio tested depending on thinning intensities for radiata pine and maritime pine. Pinus radiata Pinus pinaster Intensity of First thinning Second thinning First thinning Second thinning thinning ... study was to calculate the accumu-lation and the export of nutrients over time in Pinus pinaster(maritime pine) and Pinus radiata (radiata pine) stands under a range of silvicultural alternatives, ... exports of pine plantations and thinning 379Figure 1. Nutrient removals and nutrient returns to soil as logging residues due to thinnings and clear-cutting as a function of thinning intensity and...
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Báo cáo lâm nghiệp: " Site quality equations for Pinus sylvestris L. plantations in Galicia (northwestern Spain)" ppt

... 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, 2005DOI: 10.1051/forest:2005006Original article Site quality equations for Pinus sylvestris L. plantations in Galicia (northwestern Spain)Ulises DIÉGUEZ-ARANDA*, Juan Gabriel ... models for Scots pine (Pinus sylvestris L.) in north-east Spain, Ann. For. Sci. 60 (2003) 1–10.[44] Palahí M., Tomé M., Pukkala T., Trasobares A., Montero G., Site index model for Pinus sylvestris...
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Báo cáo lâm nghiệp: "Sessile oak (Quercus petraea Liebl.) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France" doc

... petraea Liebl.) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern FranceLaurent BERGÈSa*, Richard CHEVALIERa, Yann DUMASa, Alain ... water and nutrient budgets in predicting site index variations The climate/water-related factors and nutrient-related fac-tors explained 0 to 25% and 9 to 74% of the variance in site index, ... different trend with an optimum site index close to acidic sites in the West and close to neutral sites in theEast. In our study, site index response to specific chemical soil variables was consistent...
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Báo cáo lâm nghiệp: " Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)" ppsx

... 449453â INRA, EDP Sciences, 2005DOI: 10.1051/forest:2005041Original article Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)Klaus v. SCHWARTZENBERG*, Heinz ... increase the cytokinin content in the shoot of Norway spruce. cytokinin / forest decline / nutrient deficiency / Norway spruce / Picea abies Résumé – Stress nutritionnel et teneur en cytokinines ... artificialincrease of auxin on the root level can induce changes of the cytokinin content in the shoot. In discussing the elevated content of cytokinin ribosides in shoots of seedlings grown on STRESS- AlCl3...
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Báo cáo lâm nghiệp: " Predator/prey ratios: a measure of bark-beetle population status influenced by stand composition in different French stands after the 1999 storms" pps

... site. The comparison of predator/prey ratios between sites and years wascarried out using a two-way analysis of variance of the angular trans-form of the predator/prey ratio, with the site, year, ... clearly higher in HAand ST (the two sites with pines) than in GU and 2L, and allratios tend to increase with years (two-way ANOVA using arc-sine-transformed ratios of individual traps; there ... still remain in both stands and, in one site at least (Steinbach), large purespruce stands of susceptible age (> 50 years) are immediatelyavailable within 100 m and could have served as supplementaryresources....
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Báo cáo lâm nghiệp: "Response to an ozone gradient of growth and enzymes implicated in tolerance to oxidative stress in Acer saccharum (Marsh.) seedlings" pot

... 10.1051/forest:2006019Original articleResponse to an ozone gradient of growth and enzymes implicated in tolerance to oxidative stress in Acer saccharum (Marsh.) seedlingsCatherine Ga,b*,NadineCc,PaulWc, ... leading to a compromise be-tween maximizing aboveground growth and developing belowground growth to enhance the survivorship of seedlings [5,17].Under oxidative stress, the stimulation of the ... production of reducing power and carbonskeletons resulting in a less efficient repair and detoxificationprocesses. The presence of a second flush did not confer an ad-vantage to the episodic seedlings...
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Báo cáo lâm nghiệp: "A flexible radial increment model for individual trees in pure even-aged stands" pdf

... 327335â INRA, EDP Sciences, 2004DOI: 10.1051/forest:2004026Original articleA flexible radial increment model for individual trees in pure even-aged standsChristine DELEUZEa*, Olivier PAINa, ... various individual growth models for trees in pure and even-aged stands, a generic model with aform parameter according to each species is proposed. With a final objective of implementing this model ... segmentedcubic model for Douglas-fir, to take into account a more gradualincrease of increment for transitional trees, between suppressedand dominant.The general form of Dhôte’s model is quite interesting...
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Báo cáo lâm nghiệp: "Apoplast: a sensitive site for assessing some biochemical in Norway spruce needles" potx

... Apoplast: a sensitive site for assessing some biochemical effects of O3 or SO2 in Norway spruce needlesG. Ogier,F.J. CastilloH. GreppinLaboratory of Plant Biochemistry ... the data were obtained fromgrafted saplings originating from the sameclone and the total dose for this long-term03 fumigation was 200 ppm/h. Apparently,extracellular peroxidase ... parameters werefollowed in the intercellular washing fluid(IWF) and in the residual cell material(RCM). The plants treated in summerremained 12 wk longer in the chambers...
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Báo cáo lâm nghiệp: "phosphate fertilization on trace element nutrition pinaster grown in a sandy acid soil" pot

... Technical communicationno. 52, CAB, p. 306 Effect of phosphate fertilization on trace element nutrition of Pinus pinaster grown in a sandy acid soilE. SaurlNRA, StationdAgronomie, ... several growth disturbances andmalformations without pathological affec-tions have appeared in pines andparticularly in 3 yr old pines (twisting ofbranches and leaders, abundant ... slag (containing1.7% Mn; Juste, personal communication)was not measured in soil; consequently,variation in micronutrient levels in adultleaves should be considered as...
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