Báo cáo lâm nghiệp: "Comparison of the impact of blue spruce and reed Calamagrostis villosa on forest soil chemical properties" pot

Revised version for the consideration of Contact Committee of the Heads of the SAIs of the European Union docx

... consideration of Contact Committee of the Heads of the SAIs of the European Union Luxembourg, 6 – 7 December 2004 (version 29 October 2004) based on education, training and experience, of ... finalisation of these Standards. The amended version was sent to EU SAIs and discussed at the Liaison Officers Meeting on 4-5 October. In conclusion, the Contact Committee of Heads of the Supreme ... Assurance”) for discussion among interested parties, including the Contact Committee of the SAIs of EU Member States. The Presidents ask the present rapporteurs (Liaison Officers of SAI’s of Hungary,...

Báo cáo hóa học: " Could FIV zoonosis responsible of the breakdown of the pathocenosis which has reduced the European CCR5-Delta32 allele frequencies?" pptx

... purposes)Virology JournalOpen AccessResearch Could FIV zoonosis responsible of the breakdown of the pathocenosis which has reduced the European CCR5-Delta32 allele frequencies?Eric FaureAddress: ... environment. The aim of this article is to critically discuss the possiblenature of this (or these) parasite(s) responsible of the decrease of the CCR5-Δ32 allele frequency in the Southern European ... decrease of the CCR5-Δ32 allele fre-quency in the South of the Europe could be due to para-sites. The introduction of parasites in naive colonizedpopulations could have induced a breakdown of the pathocenosis...

Báo cáo hóa học: " Research Article Quantiﬁcation of the Impact of Feature Selection on the Variance of Cross-Validation Error Estimation" doc

... deviation-distribution variance using feature selection as opposed tousing an optimal feature set without feature selection. The contribution of feature selection to the variance of the deviation ... pagesdoi:10.1155/2007/16354 Research Article Quantiﬁcation of the Impact of Feature Selection on the Variance of Cross-Validation Error EstimationYufei Xiao,1Jianping Hua,2and Edward R. Dougherty1, 21Department of Electrical ... re-sulting from feature selection; nevertheless, since the mean-squared error of an error estimator equals the sum of the variance and the squared bias, one might ask whether fea-ture selection has...

Báo cáo lâm nghiệp: "Comparison of the impact of blue spruce and reed Calamagrostis villosa on forest soil chemical properties" pot

... Supported by the Ministry of Agriculture of the Czech Republic, Research Project No. MZE 0002070203.Comparison of the impact of blue spruce and reed Calamagrostis villosa on forest soil chemical ... mitigate the acidiﬁcation of soil solution and the leaching of basic cations of Ca and Mg from soil. is study aims to compare impact of 20 year last-ing cover of blue spruce, and clear-cut reed ... 2008).Production potential of blue spruce is lower than of Norway spruce (Š 1976; N, S 2004), negative impact of blue spruce on the forest soils is mentioned in the literature...

Báo cáo lâm nghiệp: "Improving RBS estimates – effects of the auxiliary variable, stratification of the crown, and deletion of segments on the precision of estimate" pps

... variables, the stratification of the crown and the deletion of segments. In the present study, the effects of the choice of the auxiliary variable and of the created crown structure (segments and nodes, ... dele-tion of the stem segments. After this closer look at the old pine, the effect of stratification and deletion of the stem segments on the precision of estimates is to be studied for all trees of ... e analysis of the effects of the crown structure concentrates on the stratification of the crown and on the deletion of greater segments (e.g. the stem) by using the classical RBS. Statistical...

Báo cáo lâm nghiệp: "Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in Southern Moravia (Czech Republic)" pot

... 6215648902.Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in Southern Moravia (Czech Republic)J. SFaculty of Forestry and Wood Technology, ... found in southern Moravian forests as exerted by the bank vole gnawing the stems of young trees. In controlled forests 40% of young oak plantings were damaged to some extent after winter 2004–2005 ... types of low altitude forests (e.g. Z 1973). In all of them Cg is one of the dominant species. In our study we concentrated on the study of the population of this species as also some other...

Báo cáo lâm nghiệp: "Contribution to the knowledge of Apodemus sylvaticus populations in forests of the managed landscape of southern Moravia (Czech Republic)" potx

... respect to damage to forest stands. In the present paper, the population dynamics of As is described in larger forest complexes of southern Moravia depending on the biotope and food supply including ... (Apodemus sylvaticus) . Journal of Zoology (London), 198: 83–102.SUCHOMEL J., 2007. Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in ... reached the higher winter population abundance than in the other two forests (Fig. 1). It also showed higher litter sizes in spring and summer. However, populations in all forests declined during...

Báo cáo lâm nghiệp: "Changes in the abundance of Melolontha hippocastani" ppsx

... males. In the years of heavy swarming (2005 and 2008) we saw a diﬀerence between males and females in the time of swarming; the swarming of females cul-minated at the time when the swarming of ... ﬂuctua-tions in the intensity of swarming were due to low evening and night temperatures (rain). During the entire period of swarming the males outnumbered the females (Fig. 3). In the subsequent ... Statistica 8. In all the four localities we evaluated data on the intensity of cockchafer swarming and interpret-ed the trend of development of the abundance of cockchafer tribes in the particular...

Báo cáo lâm nghiệp: "Findings from the application of coal combustion by-products (CCB) for forest reclamation on spoil banks of the North Bohemian Brown Coal Basin" pdf

... stand composition) from each taxon used for the reforestation of the state of reclamation “A” and “B” Fig. 3. Fraxinus excelsior L. in the treatment with the application of CCBFig. 4. Populus ... L. in the treatment with the application of CCBFig. 5. Tilia cordata Mill. and Pinus nigra Arn. in the treatment with the application of CCBFig. 6. Deformations of the root system in the used ... in connection with the soil conditions created by reclamation. Based on the performed leaf analyses the deter-mined diﬀerences in element contents between the evaluated reclamation variants...

Báo cáo lâm nghiệp: "How to identify larvae of the protected species: Dioszeghyana schmidtii (Diószeghy 1935), and survey its presence and abundance (Lepidoptera: Noctuidae; Hadeninae)" pot

... ad-vantages of such.MATERIAL AND METHODS To obtain D. schmidtii larvae it is recommended to simply beat the bottom branches of the food-plant up to 3 m above ground level. The larvae of this ... possibilities.(C) Degree of isolation of the population present on the site in relation to the natural range of the species.(D) Global assessment of the value of the site for conservation of the species ... order to collect larvae as an useful way to record and to survey D. schmidtii. Larvae of the species can be collected by beating branches of its host plants (Quercus and Acer species) in the...

Báo cáo lâm nghiệp: "SHORT COMMUNICATION The use of cotyledon proteins to assess the genetic diversity in sweet holm oak" potx

... spread in the Mediterranean basin. In Spain, few studies on the genetic variability of this species have been displayed. Storage seed proteins are a useful tool in the evaluation of the genetic ... 526–531 The aim of the present study was to evaluate cotyledon storage proteins as markers of the genetic diversity in sweet holm oak.MATERIAL AND METHODSSamples of acorns from 40 holm oak ... method of analysis of cotyledon storage proteins (glutelins) could be considered an additional tool for the evaluation of genetic diversity in this species.Keywords: seed storage proteins; genetic...

Báo cáo lâm nghiệp: "Relationships between the parameters of aboveground parts and the parameters of root plates in Norway spruce with respect to soil drainage" docx

... correlation between the aboveground parameters and the depth of root plates in spruce trees growing both in waterlogged and in well-drained sites. According to our results, it seems that the roots of ... 353JOURNAL OF FOREST SCIENCE, 56, 2010 (8): 353–360Relationships between the parameters of aboveground parts and the parameters of root plates in Norway spruce with respect to soil drainageP. ... e-mail: stofko@neulogy.euness of root plates in Norway spruce trees, and it is probable that there does not exist any relationship between the aboveground parts and the rooting depth in adult spruce...

Báo cáo lâm nghiệp: "Growing stock-based assessment of the carbon stock in the Belgian forest biomass" ppsx

... journal online:www.edpsciences.org Carbon stock in Belgian forests 8593.2. Total carbon stocks in the Belgian forest biomass The total carbon stocks in the living biomass of the Flemishand the Walloon ... Wallonia).Besides the difference in standing stock, the choice of the BEFs s.l. used for the carbon stock calculation explains the dif-ferences in mean carbon stock. The solid line in Figure 4 indi-cates the ... located in the Flemish forests,while the Walloon forests contained 79.8% of the forest carbon of Belgium. The minimum BEF s.l. scenario resulted in a value of 42.8 Mt C for the total carbon stock in...

Báo cáo lâm nghiệp: "Comparison between field performance of cuttings and seedlings of Eucalyptus globulus" ppsx

... theother hand, Lambeth et al. [19], in E. grandis and Menck and Table IV. Comparison of means (and associated F-test) between cuttings and seedlings and variances values for family and clones (and ... Field performance of cuttings and seedlings of E. Globulus 841Kageyama [21] in E. saligna found a clear superiority of improved cuttings over unimproved seedlings. Most of thesestudies ... The aim of thepresent research study was to compare field performance between seedlings and cuttings in terms of growth and wooddensity (pilodyn penetration) in Eucalyptus globulus field trialsup...

Báo cáo lâm nghiệp: " A flow cytometric evaluation of the nuclear DNA content and GC percent in genomes of European oak species" pptx

... note A flow cytometric evaluation of the nuclear DNA content and GC percent in genomes of European oak speciesJM FavreS Brown21 Laboratoire de biologie forestière associé ... Quercus and the Faga-ceae family. The values are typical forhigher plants. This type of data can be use-ful in planning molecular procedures for DNA polymorphism analysis ... introducedvariability, as evidenced by our tight stand-ard deviations.Unfortunately, there are no availablemicrodensitometry or flow cytometry dataon the DNA content in other Fagaceae gen-era...

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