Báo cáo lâm nghiệp: " Long-term effects of CO2 enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile tree" potx

... Research Intention of Institute of Systems Biology and Ecology, Project No. AV0Z 60870520. Long-term eﬀects of CO2 enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile ... acceleration of bud phenology result in prolonga-tion of the shoot growth period and in a subsequent enhancement of wood production (B 1994). e eﬀect of long-term (months and years) CO2 enrichment ... the bud scales, and 4 – leaf per needle elon-gation). Shoot elongation growth was observed on exposed and shaded apical (ExA and ShA) and exposed and shaded lateral (ExL and ShL) buds/shoots....

Báo cáo lâm nghiệp: "Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China" ppsx

... Program of China No. 201104070.Short Communication Diﬀerences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast ChinaDONGKAI ... species would not become dominant in the forest. e results of the multi-response per-mutation procedures (MRPP) further conﬁrmed the dissimilarity of species composition in the primary and ... identified. Of the overall number of tree species, 21 were present on both the primary and logged forest sites: 6 species of seedlings, 19 species of saplings, 15 species of poles and 9 species of...

Báo cáo lâm nghiệp: "The effects of flooding and Phytophthora alni infection on black alder" pps

... test).RESULTS AND DISCUSSIONConfirmation of flooding and P. alni infection effects on black aldere analysis of covariance confirmed that the both factors (flooding and P. alni infection) and their ... condition was Table 1. e effect of long-term flooding and Phytophthora alni infection on the development of black alder saplings Treatment per valid NLength of necrosis (cm)Root biomass (g)Actinorrhiza ... of the factors plant height (covariate), flooding, P. alni and ooding ì P. alni interaction on depend-ing variables (increase in stem length, length of leaves and biomass of leaves, roots and...

Báo cáo lâm nghiệp: " The effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance" pdf

... stability as an intrinsic quality of forest e effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundanceM. BInstitute of Forest Ecology, ... this in uence was found positive on plot M only.Fig. 5 illustrates the in uence of cutting on changes in the species composition of natural regeneration in comparison with the parent stand. ... group consisting of beech and willow. e results of ANOVA in Table 3 indicate a signifi-cant in uence of different cutting operations on the number of all regenerating individuals, of all indi-viduals...

Báo cáo lâm nghiệp: " Differential effects of N, P and K on photosynthesis and partitioning of N in Pinus pinaster needles" pptx

... and Pinus strobus [43]. A partial expla-nation may lie in a positive relationship between the concen-tration of P and amount of Rubisco, as observed in P. pinaster [55] and in herbaceous species ... argument against any lasting role of Amax in the growthresponse. Concentrations of N, P, and K were maintainedwithin a relatively small range, and there was no correlationbetween Amax and concentrations ... similar lack of photosynthetic response to nutrientaddition has been reported in Pseudotsuga menziesii [10], Pinus strobus [43], Pinus taeda [51] and Pinus pinaster [55]. Togetherthese findings cast...

Báo cáo lâm nghiệp: "Interactive effects of irradiance and water availability on the photosynthetic performance of Picea sitchensis seedlings: implications for seedling establishment under different management practices" ppt

... 10.1051/forest:2005037Original articleInteractive effects of irradiance and water availability on the photosynthetic performance of Picea sitchensis seedlings: implications for seedling establishment ... 2005)Abstract – The impact of water availability on the photosynthetic performance of three year old, commercially obtained, Sitka spruce (Picea sitchensis) seedlings under exposed and shaded conditions ... physiological understanding of the factors controlling seedling performance under conventional and continuous cover forestry (CCF) management scenarios. Decreases in photosynthesis in responseto water...

Báo cáo lâm nghiệp: "Interactive effects of phosphorus and light availability on early growth of maritime pine seedlings" pptx

... vertical and horizontal bar indi-cates the standard error of the mean. Effects of phosphorus and light on early growth of maritime pine 577density (PPFD) at the top of the seedlings was 120180 and ... TXTN+()2 Tb–∑= Effects of phosphorus and light on early growth of maritime pine 5814. DISCUSSIONOur results reveal the occurrence of a complex interactionbetween phosphorus and light. At the ... response of early growth of maritime pine seedlings to combined levels of light and phosphorus. Seedlings weregrown under three levels of phosphorous availability, i.e., two relative addition...

Báo cáo lâm nghiệp:" Mature trees versus seedlings: Differences in leaf traits and gas exchange patterns in three co-occurring Mediterranean oaks" docx

... availability. In this study we analysed the leaf traits and patterns of gas- exchange during the well-watered part of the growth season in mature trees and seedlings of three co-occurring Quercus ... However, in our case it seems that the interspecific differences in leaf life span show a smaller effect on the phys-iological differences at leaf level in seedlings than in mature trees, and this ... adults. In all cases, leaf mass per unit area (LMA) and leaf nitrogencontent were significantly lower in seedlings than in mature trees, although the differences in N content between seedlingsand...

Báo cáo lâm nghiệp: "The effects of thinning on the structural diversity of coppice forests" doc

... types of diversity areas manifold as the ways of calculating measures of diversity. Furthermore, any diversity determination is relative to the con-ditions of the area concerned. Considering the ... Montes et al.increases the illumination on the stems and in the case of Q.faginea this produces an intense sprouting from the stem,instead of the reoccupation of openings through the horizontalexpansion ... Thinning effects on the structure of coppices 773those expected under random distribution, so the spatial pattern is clus-ter. The transformation proposed by Besag in the discussion of Ripley...

Báo cáo lâm nghiệp: "The effects of lifting on mobilisation and new assimilation of C and N during regrowth of transplanted Corsican pine seedlings. A dual 13C and 15N labelling approach" docx

... throughdecreased stomatal conductance and increased allocation of N. As a consequence, C assimilation, carbohydrate concentration, and N availability for new growing components were decreasedin lifted ... in non-structuralcarbohydrate concentration, also altered carbohydrate status of Corsican pine seedlings. Starch concentration increased stronglyin needles the first days after transplanting. ... assimilation / remobilisation* Corresponding author: maillard@nancy.inra.fr C and N balance in lifted Corsican pine 799Old N content of pre-existing components was significantlyaltered by time and...

Báo cáo lâm nghiệp: "The effects of elevated CO 2 and water stress on whole plant CO 2 exchange, carbon allocation and osmoregulation in oak seedlings" docx

... 20 1 -21 1 Carbon isotope composition and new carbon allocation Carbon isotope composition of all nonla-belled plants was on average 17&permil; morenegative in plants in ... elevated atmospheric CO 2 concentration and water stress. Moreprecisely, i) carbon allocation (1 3CO 2 labelling) to the different plant componentswas assessed in relation ... concentrations. However, elevated CO 2 concentrations often lead toreduced total mineral ion concentrations in the plant tissues (Conroy, 19 92; Overdieck,1993). The responses of mineral...

Báo cáo lâm nghiệp: "The effects of stock type and radicle pruning on blue oak morphology and field performance" docx

... survival of the three treat-ments, averaged over stock types, variedby 1% or less (table II). Short noteThe effects of stock type and radicle pruning on blue oak morphology ... ten rows of nine seedlings each.Each row contained one randomly positionedseedling from each of the nine treatment combi-nations (three stock types x three pruning treat-ments).In ... trimming off part of the radicle of germinated blue oak acornsprior to planting has little or no influence on field performance of either directly sownacorns or container...

Báo cáo lâm nghiệp: "The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Cedrus atlantica Manetti seedlings: role of root regeneration" pdf

... capacity. The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Cedrus atlantica Manetti seedlings: role of root regenerationJ.M. ... were main-tained at 20°C in order to promote root regen-eration. Assimilation rate measurements and root observations (number of growing roots and root elongation) were ... IndiaIntroductionArtificial forest stand establishment maybe achieved either with container-grownseedlings or with bareroot planting stock.Since growing seedlings in containersmay...

Báo cáo lâm nghiệp: "Direct effects of acidic wet deposition on photosynthesis and stomatal conductance of two Populus clones (P. cv. Beaupré and P. cv. Robusta" pot

... 9 for cv. Beaupr6 and LPI12 for cv. Robusta. On the whole, acid raincaused a decrease of stomatal conduc-tance; gssat was reduced by 24.0% for cv. Beaupr6 and by ... Karnosky D.F. & Bormann F.H.(1986) Effects of ambient ozone on the produc-tivity of Populus tremuloides Michx. grownunder field conditions. Can. J. For. Res. 16, 47-55 ... gssat was reduced by 24.0% for cv. Beaupr6 and by 15.4% for cv. Robusta.Discussion and ConclusionsBoth clones showed a decrease for PNsatas well as for gssat. Cultivar...

Báo cáo lâm nghiệp: "The effects of summer exposure to ozone on the frost hardiness after the vegetation period of Norway and Sitka spruce seedlings" doc

... beenexposed to ozone. For the Sitka spruce, there was no effect of pollutant exposure on the timing of frost hardiness attained by the shoots but, compared to the Norway shoots ... assumed dead). The shoots + vials werethen autoclaved and the total conductivity (C-) of the solution determined. Based on the assumption that the rate of leakage of electro-lytes ... shoots of both species haddehardened to temperatures between -5 and -10°C (Fig. 3).Discussion and Conclusions Exposure to ozone delayed the frost hard-ening of Norway spruce...

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