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Báo cáo lâm nghiệp: "Designing decision support tools for Mediterranean forest ecosystems management: a case study in Portugal" pptx

Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "Analysis of some dynamic series of forest production and trends of forest economics in the Czech Republic" ppt

... m3/ha (according to Report on the Condition of Forests and Forestry in the Czech Republic, 2004).Timber felling In the whole post-war period, annual timber fell-ing in the forestry of Czech Republic ... some dynamic series of forest production and trends of forest economics in the Czech RepublicV. KFaculty of Forestry and Wood Technology, Mendel University of Agriculture and Forestry Brno, ... each other – both with respect to the development of commercial forest production and in terms of the implementation of the strategy of sustainable life and application of principles of near-natural...
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Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx

... assort-ments with the potential income possible to obtain An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish LowlandA. W1, R. J1, G. R1, ... beginning has been fixed on the basis of the relation of the value of wood increment from the stands which need conversion to the value of average wood increment from stands con-formable to the ... changes in the mean volume of Scots pine stands growing at unsuitable sites and oak stands growing at appropriate sites follow different pathways.– e increment rate of the mean value of pine stands...
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Báo cáo lâm nghiệp: "Research on individual parameters for cutting power of woodcutting process by circular saws" docx

... parts: Research on individual parameters for cutting power of woodcutting process by circular sawsJ. K, M. MDepartment of Forest and Mobile Technology, Faculty of Environmental and ... mass of a work-piece by a cutting- wedge during the deformation of a mass in the surroundings of a cutting edge,– forces necessary for deflection of chips and sup-pression of chip friction against ... cutting power is very important and it is the factor of power consumption. Along with other cutting conditions the cutting angle is decisive for the performance of tools, machines, economics of...
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Báo cáo lâm nghiệp: "derivation of target stocking for forests of norway spruce vegetation zone in slovaki" pptx

... Research Institute, Zvolen, Slovak RepublicABSTRACT: e present paper deals with derivation of target stocking in forests of Norway spruce vegetation zone. Target stocking in forests with prevailing ... DISCUSSIONAnalysis of the present stocking of forests of Norway spruce vegetation zone Actual stocking on PRP was analyzed in the for- ests of the svz in relation to the degrees of natural-ness ... the stocking when the forest fulfils demanded functions in the best way. For forests in the Norway spruce vegetation zone target stocking was derived by original procedures as an optimum stocking...
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Báo cáo lâm nghiệp: " Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts" ppt

... differences in the root system development and health condition were found either between the trees of identical height from self-seeding and from planting in the region of Krušné hory Mts. and in the ... 452–461JOURNAL OF FOREST SCIENCE, 53, 2007 (10): 452–461 Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts.O. ... trees of the same height from planting with severe and small root system deformations in the region of Krušné hory Mts. and in the region of Bohemian-Moravian Up-land.(7) Mutual comparison of...
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Báo cáo lâm nghiệp: "Some methodological aspects of the National Forest Inventory and Monitoring in Slovakia" pptx

... main tree species, the input data being the tree diameter and height, quality of the bottom third of the stem (A, B, C), stem damage (yes, no), and in the case of the beech also the age and ... for assessing the forest state – survey of natural conditions and forest ecology, detection of forest stands condition for forest management needs, and the national monitoring of forest health ... variables by the same method and at the same place over a longer time period. Data is collected using the computer-Some methodological aspects of the National Forest Inventory and Monitoring in SlovakiaŠ....
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Báo cáo lâm nghiệp: "The effect of different stand density on diameter growth response in Scots pine stands in relation to climate situations" potx

... were included in the clusters together with trees from unthinned control plots 1c.Variability of growth response of pine stands to climate characteristic in relation to thinningVariability of ... thinned stands (variant 4t) showed the higher variability of diameter growth response in comparison with those from control stands. DISCUSSION e response of Scots pine to climatic conditions ... eff ect of thinning on variability of diameter growth response in pine stands? In the Czech Republic, where pine stands take up 18% of the forest area, a relatively wide collection of long-term...
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Báo cáo lâm nghiệp: "Spatially constrained harvest scheduling for strip allocation under Moore and Neumann neighbourhood adjacency" pdf

... 70 J. FOR. SCI., 57, 2011 (2): 70–77JOURNAL OF FOREST SCIENCE, 57, 2011 (2): 70–77Spatially constrained harvest scheduling for strip allocation under Moore and Neumann neighbourhood ... t.In the case of strip window management, each forest stand was divided into strips following com-mon shelterwood management conventions for strip width and forest stand borders. Strips were created ... –1X), J. FOR. SCI., 57, 2011 (2): 70–77 75DISCUSSION AND CONCLUSION e strip shelterwood forest management system specifi es strip windows for harvest and regeneration of forest stands, along...
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Báo cáo lâm nghiệp: "Ecological requirements of some ant species of the genus Formica (Hymenoptera, Formicidae) in spruce forests" pps

... activity of the F. sanguinea ants depending on the quantity of light incident upon the soil surfaceFig. 14. GLM of the occurrence of the F. sanguinea ants depend-ing on the quantity of undergrowth ... activity of the F. pratensis ants depending on the quantity of light incident upon the soil surfaceFig. 10. GLM of the occurrence of the F. pratensis ants depend-ing on the quantity of undergrowth ... 32–40JOURNAL OF FOREST SCIENCE, 55, 2009 (1): 32–40e ants of the genus Formica are a significant component of forest ecosystems. They influence soil qualities and the presence of some plant species...
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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...
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Báo cáo lâm nghiệp: "Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus tabulaeformis)" pps

... 566 J. FOR. SCI., 54, 2008 (12): 566–571JOURNAL OF FOREST SCIENCE, 54, 2008 (12): 566–571Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus ... on the basis of the mean square error (MSE) and sample size. For these sample plots, the moment method was superior for estimating the parameters of Weibull distribution for tree diameter distribution. Keywords: ... introducing the LSM for fitting the Weibull distribution and compar-ing their performances with the MLE and MOM. The objective of this research is to assess and compare the accuracy of the above three...
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Báo cáo lâm nghiệp: " Changes of the mixed mountain virgin forest after 70 years on a permanent plot in the Ukrainian Carpathians" pps

... 2006. Changes of the mixed mountain virgin forest after 70 years on a permanent plot in the Ukrainian CarpathiansJ. V, J. Š, T. KDepartment of Forest Botany, Dendrology and Geobiocenology, ... beech rotate. In 1934 the stage of disintegration probably pre-dominated in the plot, because total timber volume was rather low and natural regeneration was abun-dant. Nowadays the stage of growth ... growth conditions of the crystalline Eastern Carpathians are fairly different from the con-ditions of Slovakian Carpathian virgin forests (e.g. Badínsky prales, Dobročský prales), the virgin forest...
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Báo cáo lâm nghiệp: "The contribution of remote sensing to the assessment of drought effects in forest ecosystems" ppsx

... from the similarity of the detected changes with those caused by drought. This part gives an overview of the state of the art in the use of remote sensing for detecting and monitor-ing forest ... are: to briefly review the existing sources of remote sensing data and their potential to detect drought damage; to review the remote sensing applications and studies carried out during the last ... ground assessment. Finally, the feasibility of depicting forest decline is closely dependingon the topography of the study area, on the structure of forest stands, on the date and frequency of data...
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Báo cáo lâm nghiệp: "Designing decision support tools for Mediterranean forest ecosystems management: a case study in Portugal" pptx

... Pascual L., Trasobares A. , Examining alter-native landscape metrics in ecological forest landscape planning: a case for capercaillie in Catalonia, Investigaciones Agrarias, Sist.Recur. For. 13 (2004) ... inFlor, a Manage-ment Information System in Forest resources, in: Pukkala T.,Eerikainen K. (Eds.), Modelling the Growth of Tree Plantations andAgroforestry Systems in South and East Africa, ... tree information and specific ecological data. Third, anadditional capability for linking financial and economic data, i.e. unitcosts and prices, to cultural treatments is key for estimating...
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Báo cáo khoa học:

Báo cáo khoa học: "mproving models of wood density by including genetic effects: A case study in Douglas-fir" potx

... a straightfor-ward comparison between two models. A genetic effectmay affect the significance level of a model in at leasttwo ways: either as a main factor, as in analysis of vari-ance (ANOVA), ... lessthan 10–7.388 P. Rozenberg et al. Original articleImproving models of wood density by including genetic effects: A case study in Douglas-firPhilippe Rozenberg*, Alain Franc, Catherine ... were availableand used for explaining ring density (D): ring width (W),ring cambial age (CA) and genetic identity (provenanceP, family F, clone C). In one case (half-sib progeny), anadditional...
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