Báo cáo lâm nghiệp:"Stability of transgene expression in poplar: A model forest tree species" ppsx
Báo cáo lâm nghiệp: "Utilization of digital photogrammetry in forestry mapping" docx
... forestry mapping rationalization. Digital photogrammetry in forestry mapping Digital photogrammetry is a process of digital image interpretation in a computer without human assistance. Digital image ... the beginning of the 90’s, forestry mapping changed from the analogue making of the maps with thematic forestry themes into a system, the output of which is a digital forestry map. Financial ... photogrammetric interpretation of aerial images is a dominant method of forestry mapping. In the last years, transition from analogue to digital photogrammetry has been distinct. Digital photogrammetry...
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Báo cáo lâm nghiệp: " Quantification of nutrient content in the aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, Indi" pdf
... nutrient content of aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, Rajasthan, India. e nutrient contents in the total biomass of teak in the plantation ... involved. Plantation species of the genus Acacia, Pinus, Euca-Quantication of nutrient content in the aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, IndiaJ. ... biomass of teak plantation in a tropical dry deciduous forest of Rajasthan, western India. erefore, the main objective of the present study is to quantify the nutrient content of aboveground biomass...
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Báo cáo lâm nghiệp: "Stability of the development of basic stand parameters of beech yield tables constructed on the basis of short-term observations on research plots" pptx
... a small number of their repeated measure-Stability of the development of basic stand parameters of beech yield tables constructed on the basis of short-term observations on research plotsR. ... 3rd generation of yield tables, constructed on the basis of regression fitting of stand data from research plots by mathematical functions, the most distributed. A basis of their high value ... were used for the construction of yield tables in 1980. Of the total number of all 550 repeated measurements 70% of them were used for the construction of yield ta-bles and the remaining 30%...
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Báo cáo lâm nghiệp: "Development of tertiary roads in the Lednice-Valtice Cultural Landscape" pps
... utilization of tertiary roads and the maintenance of the Lednice-Valtice Cultural Landscape (LVCL) in a historical context. Furthermore, in virtue of these relations, to draft the methodology ... reflected in the forest trans-port network. ese changes were above all in the area of floodplain forests after the regulation of the Dyje River. e interconnection of forest and rural roads in the ... of single levels were exported and compiled in the MS Excel program again. After that, the values of theoretic skidding distance (Dt), the density of forest roads (H) and the efficiency of...
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Báo cáo lâm nghiệp: "Growth of hybrid poplars in silviculture at the age of 6 years" pps
... to the low age of poplar plantation, the eval-uated clones were divided into two groups: – A. group of candidate clones yielding more than cultivar 'I-214' at the age of 6 years in ... clones) at the age of 6 years. Survival rate of 11 clones was 91 .6% of individuals and survival rate of only 2 clones was 83.3%. Trees in border rows derived from 4 clones (P- 363 , P- 365 , P -60 8, ... 'CZ-144') originating from open pol-lination and P-789 (P. deltoides) maintained in the Czech poplar germplasm collection were included in the group of candidate clones with estimated mean stem...
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Báo cáo lâm nghiệp: "Transformation of solar radiation in Norway spruce stands into produced biomass – the effect of stand density" doc
... years after the thinning similarly like in previous years. Positive ef-fects of the high-type thinning in 2001 were reflected in the 17%increase of LAI in 2002. e realized thin-ning exhibited ... aboveground biomass (TBa) and the total aboveground biomass increment (DTBa) were ob-tained on the basis of stand inventory realized at the end of each growing season. e procedure of the stand inventory ... because the considerable amount of absorbed PAR is not directly involved in solar energy transformation into the formation of new biomass. The increased amount of foliage is not involved in effective...
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Báo cáo lâm nghiệp: "Variation of conducting area in stems of European larch (Larix decidua) growing in fresh mixed coniferous forest and fresh mixed forest sites" pdf
... zone rings of early and late wood are contained, the Variation of conducting area in stems of European larch (Larix decidua) growing in fresh mixed coniferous forest and fresh mixed forest ... classes in age class IV in fresh mixed coniferous forest (A) and fresh mixed forest (B) sitesFig. 9. A comparison of characteristics of the size of ring conducting area (CAar) in Kraft’s classes in ... in Kraft’s classes in age class III in fresh mixed coniferous forest (A) and fresh mixed forest (B) sitesFig. 8. A comparison of characteristics of the size of ring conducting area (CAar) in...
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Báo cáo lâm nghiệp: "Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Śląski and Beskid Żywiecki Mts. from the aspect of their nutrition status" pptx
... determine the stability of spruce stands in the areas of threat to forest stability in the Beskid Śląski and Beskid Żywiecki Mts. in the light of their nutrition. In 2002 samples of soil and of ... Beskid Śląski Mts.; Beskid Żywiecki Mts.; Southern Poland 42 J. FOR. SCI., 54, 2008 (2): 41–48VIII, Province 1 of the Beskid Śląski Mts. and Beskid Mały Mts. and partly in Province 4 of the ... regionalization of Poland (T et al. 1990), the area of the present research is located in Carpathian Region Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Śląski and Beskid...
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Báo cáo lâm nghiệp: "High potential for increase in CO2 flux from forest soil surface due to global warming in cooler areas of Japan" ppt
... Ann. For. Sci. 63 (2006) 537–546 537c INRA, EDP Sciences, 2006DOI: 10.1051 /forest: 2006036Original articleHigh potential for increase in CO2 flux from forest soil surface due to global warming ... as CO2sinks. A recent study shows that soil in Englandand Wales lost carbon at a mean rate of 0.6% y−1 from 1978 to 2003 according to soil inventory data [1]. In light of global warming, the ... decomposable soil organic carbon and organiclitter, the potential increase in CO2efflux from forest floor with increasing soil temperature would be greater in cooler- climate sites.cellulose / Japanese forest...
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Báo cáo lâm nghiệp: "Variability of cutting regimes in small private woodlots of south-western France" pot
... edge of P-1).The regeneration of the stands is always natural (shoot +seedling); no planting was identified in the woodlots studied.Clearing, thinning of seedlings, early thinning and pruningwere ... particu-larly concerning the density of the maintained standards, butwere often in the framework of a cordial relationship. Cutting regimes in small forest 927[20] Giudici F., Zingg A., Sprouting ability ... bequalified as being “less sustainable”. Indeed the site’s nativespecies are maintained and varied species of standards are in general left at the time of each cutting operation, which main-tains a balance...
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Báo cáo lâm nghiệp: " Partitioning of remobilised N in young beech (Fagus sylvatica L.) is not affected by elevated [CO2]" ppsx
... 285Ann. For. Sci. 62 (2005) 285288â INRA, EDP Sciences, 2005DOI: 10.1051/forest:2005021Note Partitioning of remobilised N in young beech (Fagus sylvatica L.) is not affected by elevated ... ambient. During the fol-lowing weeks, however, partitioning of labelled N increased in the shoots and decreased in the roots in the elevated treatment,and at Week 12, no difference in the partitioning ... of growth, nitrogen and car-bon partitioning to elevated atmospheric CO2 concentration in liveoak (Quercus virginiana Mill.) seedlings in relation to nutrient sup-ply, Ann. For. Sci. 56 (1999)...
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Báo cáo lâm nghiệp: " Variation of the photosynthetic capacity across a chronosequence of maritime pine correlates with needle phosphorus concentration" pptx
... explained by the higher values of photosynthetic capacity and intermediate level of stomatal conductance meas-ured in the trees of this stand. Leaf nitrogen concentration on an area basis appeared ... likely the main cause of the changesin photosynthetic capacity observed among maritime pine stands. Having acknowledged that the differential fertilisation of the stands composing the chronosequence ... demonstrated that crown heightdid not influence Vcmax and Jmax in maritime pine trees. The lack of variation in photosynthetic parameters was due to the weak attenuation of light with canopy...
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Báo cáo lâm nghiệp: "Variation of morphological traits in natural populations of maritime pine (Pinus pinaster Ait.) in Morocco" pot
... (2006) 8392â INRA, EDP Sciences, 2006DOI: 10.1051/forest:20050100Original articleVariation of morphological traits in natural populations of maritime pine (Pinus pinaster Ait.) in MoroccoNadya ... in seven geographical origins of maritime pine (Pinus pinaster Ait.), Theor. Appl. Genet. 88 (1994)407–411.[8] Baradat P., Marpeau A., Le pin maritime (Pinus pinaster Ait.) biologieet génétique ... Plomion C., Genetic control of pulp and timber properties in maritime pine (Pinus pinaster Ait.), Ann. For. Sci. 59 (2002) 563–575. Natural maritime pine variability in Morocco 85no phenotypical...
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Báo cáo lâm nghiệp: "Estimation of carbon stocks in a beech forest (Fougères Forest – W. France): extrapolation from the plots to the whole forest" pps
... vegetation. The total stock, in tC, for the whole of Fougères forest was therefore the sum of the stocks in all the plots. Then the range of the total stock was calculated and the corresponding map ... the vegetation. From the statistical analyses and existing maps these point data were extrapolated to the whole forest using two changes of scale. The total carbon stock was estimated to lie in a range ... proportion of the carbon, in the order of a quarter of the stocks in the veg-etation [14, 41]. Variations in the stocks in the vegetationdepend on the age and nature of the stands but also on naturaldisturbances...
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Báo cáo lâm nghiệp:"Stability of transgene expression in poplar: A model forest tree species" ppsx
... stems of 35S-uidA transformants, in vitro plants. (b) Comparison of transgene activity in leaves and stems of EuCAD-uidA transformants, in vitro plants. (c) Comparison of stem transgene activity in ... Therefore, transgene expression must remain stable in time, which in the case of rapid-growing,short-rotation species such as Eucalyptus, Poplar, Pinus radi-ata and P. taeda can be of the order of ... transgeniclines containing and expressing the 35S-uidA cassette, and 20 inde-pendent transgenic lines containing and expressing the EuCAD-uidAconstruct. Transgene expression was assessed qualitatively...
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