Báo cáo lâm nghiệp: "Radial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum: a dendroecological assessment of fungal damage" ppt
Báo cáo lâm nghiệp: "Radial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum: a dendroecological assessment of fungal damage" ppt
... radial growth of asymptomatic and symptomatic trees.294 A. Solla et al.swelling. It has been reported that the disappearance of A. alba from Alpine stands in Italy may be partially caused by ... swellings and brooms (± SD) caused by Melampsorella caryophyllacearum on Abies alba trees located in Irati forest (Navarra, Spain) according to their competitive status (subdominant, codominant, and ... 293Ann. For. Sci. 63 (2006) 293– 300© INRA, EDP Sciences, 2006DOI: 10.1051/forest:2006008Original articleRadial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum:...
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Báo cáo lâm nghiệp: "Production and humus form development in forest stands established on agricultural lands – Kostelec nad Černými lesy region" potx
... located in the stand of Norway spruce (Picea abies) of total area 3.98 ha, the plot area is 0.191 ha.e third plot is situated in the birch stand (Betula verrucosa) of total area 0.7 ha, the measured ... concentration was found in the Douglas fir stand and especially in the pine one. Interspecific demands of particular tree species are probably demonstrated in this way, as well as the inherited ... was performed in the stands of four tree species on a orested agricul-tural lands, in a neighbouring forest stand on con-tinuously forested land (mixed Scots pine – Norway spruce stand) and...
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Báo cáo lâm nghiệp: "Extent and distribution of beech (Fagus sylvatica L.) regeneration by adult trees individually dispersed over a spruce monoculture" ppsx
... with a total area of 0.75 ha (Fig. 1) were mapped within the range of 22 individual beeches (their average spacing was about 16 m) on an area of 1.9 ha. Ap-proximately 40% of the stand area ... within the fencing and outside of it.e basic spatial statistic of the point layer of re-generated individuals in “Telc” and “Ansprung” was calculated with the assistance of the ESRI “Near-est ... regeneration is in no case spared hoofed game browsing. Whereas in fenced areas its density is in the range of tens of thousands of individuals per hectare, in unfenced areas at comparable dis-tances...
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Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx
... total.Samples of 46 plants were randomly extracted from all research plots on May 9, 2006. Samples were cleaned of soil and put into labelled plastic bags and they were taken into a laboratory for allometric ... been a long tradition in the Czech stand-ards to fix up the necessary quantitative and quali-tative parameters for seedlings and plants planted out. However, until the last Czech standard came ... are a part of forest com-partment 20B9. Generative bare-root plants were used as a planting stock. e plants were set out manually into 30 by 30 cm sockets at a 1m spacing. Regular care of...
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Báo cáo lâm nghiệp: "Spatial and temporal diversity of wood decomposer communities in different forest stands, determined by ITS rDNA targeted TGGE" potx
... weresampled and stored in a deep freezer until analysis.2.3. Molecular analysesThe surface layer, including mostly fungal mycelia and a smallamount of degraded wood, was scraped from each sample. ... index values. Scores for fungal communities in the sampling dates and tree species, for all stands and datestogether, and bacterial diversity after 2 years are given. Variability explained by ... speciespresent and selected environmental factors. An initial DCA analysiswas used to assess the trend of the data along the gradient. Becausethe structure was mostly linear, PCA and RDA were calculated...
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Báo cáo lâm nghiệp: "Reduction of wood hygroscopicity and associated dimensional response by repeated humidity cycles" doc
... GARC A ESTEBAN a *, Joseph GRILb, Paloma DE PALACIOS DE PALACIOS a , Antonio GUINDEO CASASÚS a a Cátedra de Tecnolog a de la Madera, Departamento de Ingenier a Forestal, Escuela Técnica ... strainTables III and IV give the swelling strains in radial and tan-gential directions, respectively, calculated using equation (2), forboth non-aged and aged wood. In all cases, the swelling ... The surface areasobtained in this way were laminated while green following the radial and tangential cuts to a thickness of 1 mm using a laboratory roller.Finally, the veneers thus obtained were...
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Báo cáo lâm nghiệp: "Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions of the sit" ppt
... situated at an altitude of 452 m and at a distance of 13 km from the analyzed forest stands in Moravec and 30 km from the analyzed forest stands in Radiměř). e presented data are the values ... date of mean air temperatures of 0°C was gradually shifted backwards up to 18 days, and the ending date was shifted towards by 7 days. Aligned annual total precipitation amounts are lower by ... trees and 12 snags up to an aboveground part height of 3 m, and always aboveground parts of minimally 6 trees were also examined to a height exceeding 3 m. For an easy orientation and a better...
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Báo cáo lâm nghiệp: "Regeneration and game damage in the Krušné hory Mts. assessed on the basis of National Forest Inventory of the Czech Republic" pps
... spe-cies was investigated in each height regeneration class as well as the number of trees damaged by browsing of terminal shoot, by fraying or by peeling and browsing by ungulate game. Peeling and ... classified into one category. During fraying trees are damaged by antlers of ungulate game.e assessment of peeling and browsing intensity was carried out in two categories including individu-als ... repeated investigation showed a marked reduction in individuals in regeneration, total regeneration damage by game decreased to 28%.– Damage by peeling and fraying was observed in the category...
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Báo cáo lâm nghiệp: "Growth and physiological state of beech seedlings grown in a nursery in different light conditions" docx
... (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 of radiation. Annals of Forest Science, ... leaves, larger total leaf area and higher dry matter of leaves per 1 plant were de-termined in seedlings grown in the sun. The average area of one leaf was larger in seedlings grown in the shade.The ... nursery are set out in gaps and underplantings, they are subjected to marked changes in light conditions. Plants grown in the sun and in the shade diff er in a number of morphological, anatomic and...
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Báo cáo lâm nghiệp: "Structure and development of forest stands on permanent research plots in the Krkonoše Mts" pdf
... accompanied by aggradation stage of the middle layer. Advanced natural regen-eration mainly of beech and sporadical silver fi r, sessile oak, rowan, sycamore maple, Norway maple, small-leaved linden, ... and structure variability and small-scale texture – the smallest of the zonal Central European natural for-ests. ese developmental trends are result of maxi-mal shade-tolerance and relatively ... Szklarka, Nad Jagnadkówem and river valley of Lomniczka (Poland).PRP 29 – U Bukového pralesa BSite and stand characteristicsForest stand 536 A1 7/2/1b with PRP 29 – U Bu-kového pralesa B...
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