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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

Báo cáo lâm nghiệp:

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

... Map of projected canopy areas of the investigated Fagus crenata trees in the Naeba Mountains, Japan. The shaded canopies indicate the measurement trees. Table I. General characteristics of the investigated ... Adiku S.,Kakubari Y., Influences of environmental factors on the radial pro-file of sap flux density in Fagus crenata growing at different elevations in the Naeba Mountains, Japan, Tree Physiol. ... += Radial patterns of SFD of Fagus crenata 2953.4. Radial patterns of SFDday using Weibull function with different environmental conditionWe continued our analysis of SFDday patterns in the...
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Báo cáo lâm nghiệp: "doubling atmospheric CO concentration on 2 matter distribution and CO exchange of 2 yr growth, dry 2 old sweet chestnut trees (Castanea sativa Mill.)" pptx

... leaf area and a reduction in shoot growth, which is veryunusual and may have resulted from the timing of the nutrient application. The accumulation of the carbon surplus ... which the mainbranches grew. After the end of July, 62% of the enriched plants ceased growth ascompared with 37% of the controls. The early onset of yellowing and the stopped ... during the day and decreaseddark respiration so that the diurnal C02balance was 28% greater for the C02-enriched plants (results not shown). The 28% increase in daily...
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Báo cáo lâm nghiệp: "Influence of light conditions on the predetermination of foliar characteristics in Betula alleghaniensis Britton" ppsx

... observedafter 4 wk (Table II). In late leaves, the influence of light conditions of the previousyear was not observed (Table II).Leaf anatomyTable III summarizes data on anatomicalfeatures. ... agreeand demonstrate that the light conditions to which plants have been exposed havean influence on the development of earlyleaves the following spring. The conse-quences ... by the GRDE of Canada.ReferencesChabot B.F. & Chabot J.F. (1977) Effects of lightand temperature on leaf anatomy and photo-synthesis in Fragaria vesca. Oecologia (Berlin)26,...
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Báo cáo lâm nghiệp: " Influence of temperatures and precipitation on radial increment of Orlické hory Mts. spruce stands at altitudes over 800 m a.s.l" ppt

... way the regional index residual tree-ring chronology was created in the ARSTAN application. e chronol-ogy has low values of autocorrelation. e standard regional tree-ring chronology was ... cornerstone of dendrochronological applications is the knowledge that trees growing in the same area, it means in the same conditions, have the same reaction expressed by the volume of cre-ated ... in uence on the radial increments in that particular year.Analysis of negative pointer yearse statistical comparison of time series of diameter increments and the time series of climatic factors...
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Báo cáo lâm nghiệp: " Influence of stand density, thinning and elevated CO2 on stem wood density of spruce" pot

... calculation was based on the length of internodial section and its middle cross-sectional circle area measurement. SWD of tree was calculated as the weighted average (according to length of internodial ... cultivation. Stand density of two subvariants (s – sparse with ca 5,000 trees/ ha and d – dense with ca 10,000 trees/ ha) and thinning impact (intensity of 27%) on SWD and its variation along the stem ... 6% in d subvariant and only 3% in s subvariant). e highest increase of SWD values was found in Ed subvariant, particularly in the middle stem part (about 8%, statistically significant increase).Keywords:...
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Báo cáo lâm nghiệp: "Influence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana (L.) Moench plantation on an acidified mountain site" potx

... classified as a suitable prepara-tory species even under the harsh environmental conditions of the 7th and 8th forest altitudinal zones. No growth stagnation as a result of transplanting ... the linear-regression lines smoothing the macro-element concentrations recorded within a variant in the years of sampling. For each macroelement and variant, the existence of a significant divergence ... 473difference was significant due to a variation in the crown diameter values.e nutritional status (Table 5) was assessed on the basis of foliar macroelement concentration. Ac-cording to provisional...
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Báo cáo lâm nghiệp: " Influence of a planting hole application of dolomitic limestone powder and basalt grit on the growth of Carpathian birch (Betula carpatica W. et K.) and soil chemistry in the air-polluted Jizerské hory Mts." pptx

... variant. On the other hand, in the basalt and control treatments, the foliar Ca concentrations have significantly increased since planting.e concentration of Mg in the leaves of limed trees ... concentration of ex-changeable K; probably as a consequence of silicate weathering. In the 0–10 cm horizon of the limestone variant, the increased content of exchangeable Ca and Mg is in accordance ... by raising the soil reaction (pH) and promoting mineralization of SOM, on the other hand this treatment adds Ca cations into soil and thus increases the probability of the formation of insoluble...
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Báo cáo lâm nghiệp: "Influence of light and competition on crown and shoot morphological parameters of Norway spruce and silver fir saplings" doc

... structuralfragmentation of the canopy and the clustering pattern of nat-ural regeneration [15] lead to a high spatial variability of light in the understory and of competition between saplings. An ... Grassi, R. Gianniniand silver fir saplings are mainly attributable to differences in physiological traits rather than morphological ones. Among the examined parameters, the last three years’ average ... find a reliable and easy-to-measure indicator of saplingvigor in relation to light.2. MATERIALS AND METHODS The study was carried out in a uneven-aged and mixed (Picea abiesand Abies alba) montane...
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Báo cáo lâm nghiệp: "Influence of flooding on growth, nitrogen availability in soil, and nitrate reduction of young oak seedlings (Quercus robur L.)" docx

... glutamate synthase are synthesized duringanoxia in rice roots. These findings indicate that the glutaminesynthetase/glutamate synthase cycle could play an importantrole in amino acid accumulation ... duringflooding and reached only about 34% of the control at day 34.At day 54, 14 days after drainage, lateral roots of the floodedseedling showed a large increase in biomass and reached 98% of the controls. ... that of control taproots (Fig. 6). On account of a small quantity of flooded lateral roots, their aminoacid content was measured only after drainage (day 54). It wassimilar to that of controls...
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Báo cáo lâm nghiệp: "Influence of cross section dimensions on Timoshenko’s shear factor – Application to wooden beams in free-free flexural vibration" ppsx

... Brancheriausection [2]. Timoshenko [8] defined K as the ratio of the average shearstrain on a section to the shear strain at the centroid. The K value isthus 2/3 for a beam with a rectangular ... beam equation by integration of equations based on the three-dimensional elasticity theory. A new shear factorformula was proposed which integrates Poisson’s ratio for anisotropic material ... Numerical shear factor values are calculatedaccording to variations in the height/width ratio of the cross sec-tion. The influence of the cross section size effect on the firstfive vibration frequencies...
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