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Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts" docx

Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts" docx

... were observed mainly in regions exposed to the heavy deposition e effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts.D. V1, ... scarification the top -soil horizons were moved into line windrows, which caused marked degradation of the soil environment. e present revitalization of the soil environment is based on the principle of ... matter.CONCLUSION In the course of large-scale scarification the top- soil horizons were moved into line windrows in the Krušné hory Mts., which caused marked degradation of the soil environment. e...
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Báo cáo lâm nghiệp: "Can 13C stable isotope record of Norway spruce tree rings display the effect of environmental conditions" pot

... activity in the past can be recorded from the fluctuation of the carbon stable isotope ratio in tree rings and assigned to the exact year or time period (G, C 1994). Norway spruce (Picea ... was performed using the 13C stable isotope record from three trees only. e main objective of our study was to enlarge the data set and to validate the finding that the tree physiolog-ical ... soil acidification after the decline of atmospheric depo-sition, which can result in the growth depression of trees. Growth depression of Norway spruce was detected in the Bavarian Forest (W,...
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Báo cáo lâm nghiệp: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt

... past Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societiesF. SZurich, SwitzerlandABSTRACT: e present distribution ... it has integrated increasing societal de-mands into current management practices. To assess the present and future options in management of forests, one has to be aware of the historical context. ... potential of forests in rural and urban areas (B et al. 2004; B, S 2005). e issues at stake are meeting local, national, and increasingly international environmental de-mands,...
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Báo cáo lâm nghiệp: "Diversity of endomycorrhizal fungi and their synergistic effect on the growth of Acacia catechu Willd." pot

... colo-nization and plant growth due to the interchange of carbon, phosphate and nitrogen between the host fungi and bacteria. According to B-E-D and M (1998), the dual inoculation of AM and ... attack in the rhizosphere of A. catechu. On the basis of the results it can be concluded that the co-inoculation of Rhizobium sp. and Trichoderma viride with efficient strains of AM fungi should ... mind, the present study was under-taken to determine the effect of double and triple inoculation (co-inoculation) of AM fungi with other rhizospheric microflora on the growth performance of A. catechu. MATERIALS...
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Báo cáo lâm nghiệp: "Effect of gibberellic acid and ethephon on the germination of European beech dormant and chilled beechnuts" pptx

... RepublicABSTRACT: The effect of ethephon (80, 100 and 120 mg·l–1) and gibberellic acid (GA3) (40, 300 and 1,000 mg·l–1) on the germination capacity (GC) and mean germination time (MGT) of European beech ... of the present paper was to deter-mine the effect of gibberellic acid and ethephon on overcoming beechnut dormancy and stimulation of beechnut germination. MATERIALS AND METHODSSeedsree beechnut ... detected after the application of ethephon or GA3 to dormant seeds. Conversely, both ethephon and GA3 treatments reduced (ethephon significantly) GC when applied to beechnuts chilled for four...
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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: "Effect of climatic factors on the dynamics of radial increments of Norway spruce, European beech and sessile oak" potx

... the effect of climatic factors on radial increments of treese effect of climatic factors on radial increments of trees was studied in detail by means of corre-lation analysis on standardized ... correlation models of the effect of climatic factors on radial increments of treesAfter performing the detailed analysis of pair cor-relation coefficients sets of monthly precipitation amounts and ... increment of forests in Europe is a conse-quence of higher precipitation. In the same study M et al. (2008) did not clearly confirm the Effect of climatic factors on the dynamics of radial increments...
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Báo cáo lâm nghiệp: "Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast China" pptx

... primary productivity in ter-restrial ecosystems (J et al. 1999), N miner-Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast ChinaG. Q1,2, Q. ... is maintained at 20°C. For the given vegetation type of Changbai Mountain, soil C and N mineralization rate, potential mineralizable C (C0) and potential rate of initial C mineralization (C0k) ... Soil carbon mineralization potential and its effect on soil active organic carbon in evergreen broadleaved forest and Chinese fir plantation. Chinese Journal of Ecology, 26: 1918–1923. (in Chinese)W...
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Báo cáo lâm nghiệp: "The effect of liming on the mineral nutrition of the mountain Norway spruce (Picea abies L.) forest" docx

... monitoring of forest conditions after liming is required.ere exist a lot of data on the liming effect on the soil chemistry changes but data on the liming effect on the mineral nutrition of ... observation Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902.e effect of liming on the mineral nutrition of the mountain Norway spruce (Picea ... characteristics of the spruce stands on limed and not limed plots are shown in Table 1.e evaluation of the mineral nutrition of spruce stands was carried out on the basis of regular collec-tions of needle...
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Báo cáo lâm nghiệp: " Crown architecture and leaf habit are associated with intrinsically different light-harvesting efficiencies in Quercus seedlings from contrasting environments" ppt

... 511c INRA, EDP Sciences, 2006DOI: 10.1051/forest:2006033Original article Crown architecture and leaf habit are associated with intrinsically different light-harvesting efficiencies in Quercus seedlings ... 37–39]. In agreement with this, we observed thelowest mean and total leaf areas in seedlings of Mediterraneanoaks (Fig. 3). The reduction in the mean area of individualleaves resulted in a non-linear ... that contrasting morphologies are asso-ciated with contrasting light harvesting efficiencies in species from different provenance environments due to the different selective pressures operating on...
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Báo cáo lâm nghiệp: "an Phytophthora quercina have a negative impact on mature pedunculate oaks under field conditions" pptx

... no data on water relations and mineralnutrition is available for infected oaks under field conditions.The knowledge about the effects of Phytophthoras on mature oaks under natural conditions ... analysis of the effects of air pol-lution on forests, 4th ed., United Nations Economic Commission Impact of P. quercina on mature oaks 671for Europe Convention on Long-range Transboundary AirPollution: ... 2005; accepted 10 March 2006)Abstract – Ten oak stands in southern Sweden were investigated to evaluate the impact of the root pathogen Phytophthora quercina on mature oaks under field conditions....
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Báo cáo lâm nghiệp: "Can understory vegetation accurately predict site index? A comparative study using floristic and abiotic indices in sessile oak (Quercus petraea Liebl.) stands in northern France" ppt

... A comparative study using floristic and abiotic indices in sessile oak (Quercus petraea Liebl.) stands in northern FranceLaurent BERGÈS a *, Jean-Claude GÉGOUTb, Alain FRANCc a Cemagref, ... combinedthe CA Axes and soil water capacity and was slightly better thanmodels M4 and M1. Model M7 combined abiotic indices (SWC0-150 and Mg/K) and floristic indices (CA Axis 1 and Axis 3) and ... January 2005)Abstract – We investigated the relevance of understory vegetation in indicating site productivity as expressed by sessile oak (Quercus petraea Matt. Liebl.) site index over a large...
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Báo cáo lâm nghiệp:"Net effect of competing vegetation on selected environmental conditions and performance of four spruce seedling stock sizes after eight years in Québec (Canada)" ppsx

... 691699â INRA, EDP Sciences, 2004DOI: 10.1051/forest:2003063Original articleNet effect of competing vegetation on selected environmental conditions and performance of four spruce seedling stock sizes ... species and theirinteractions on seedling survival and growth, eight years after plantation.2. MATERIALS AND METHODSThe investigations were conducted in the Province of Québec (Canada) on two ... reachingthe mid-upper crown of four spruce seedling stock sizes during the firstfive growing seasons after planting on site 3 (black spruce and white spruce species confounded). 692 R. Jobidon...
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Báo cáo lâm nghiệp: "Approche méthodologique de l’étude des relations entre la structure spatiale du peuplement ligneux et la végétation du sous-bois" docx

... du peuplement. 2.2. Méthode de relevéNous avons réalisé 85 relevés sur des placettes de forme carrée de 40 mètres de côté.2.21. Etude de la structure du peuplement ligneux Notre ... caractéristiques des peuplements irréguliers (variation de la circonférence des arbres, recouvrement des strates de 1,30 m à 8 m et de 8 m à 16 m, coefficient de variation de la distance)s’opposent ... la bordure droite de la projection du nuage des relevés sur le plan factoriel fl-f2. Du bas vers le haut on passe graduelle-ment de peuplements denses et fermés et...
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Báo cáo lâm nghiệp: "delayed effect of ozone fumigation on photosynthesis of Norway spruce" ppt

... in contradiction with the data of large numbers of papers reporting that ozone fumigation causes decreased rates of assimilation (A). However, examples of ozone fumigation not ... brieflyreports the results of an investigation intothe long-lastincl effects of ozone fumiga-tion upon photosynthesis of Norway spruce. Measurements were conducted inthe field ... ozone increased A inthe spring prior to budburst following asummer of ozone fumigation. Ozone decreases frost hardiness of Norway andSitka spruce (Barnes and Davison,...
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