Báo cáo lâm nghiệp: "Uncertainty estimation of biomass expansion factors for Norway spruce in the Czech Republic" pot

Báo cáo lâm nghiệp: " Flight activity of Anthribus nebulosus Forster, 1770 (Coleoptera: Anthribidae) and notes to its life history" potx

Báo cáo lâm nghiệp: " Flight activity of Anthribus nebulosus Forster, 1770 (Coleoptera: Anthribidae) and notes to its life history" potx

... 17°58'46.72''E, 460 m a.s.l.; Flight activity of Anthribus nebulosus Forster, 1770 (Coleoptera: Anthribidae) and notes to its life history J. H 1,2 , M. T 3 1 Forestry and Game Management Research ... consump- tion, mating behavior, and shelter selection of Anthribus nebulosus Forster (Coleoptera: Anthribidae), an introduce...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "Spatial distribution of four spruce bark beetles in north-western Slovakia" pps

Báo cáo lâm nghiệp: "Spatial distribution of four spruce bark beetles in north-western Slovakia" pps

... traps give information influenced by mi- gration of beetles. CONCLUSIONS I. typographus remained dominant species on the majority of sites having high intensity of tree infes- tation mainly along ... understanding of bark beetles spatial distribution. It may be used for practical forest protection only as preliminary information. No environmental factor controlling observed...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx

Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx

... 57–62 Because of the lack of a recent survey of Cephal- cia species in the Czech Republic, the goals of this study were (i) to monitor web-spinning sawflies liv- ing on spruce in mountainous regions ... species occurrence. Canonical axes explain 65.8% of variability J. FOR. SCI., 53, 2007 (Special Issue): 57–62 59 Table 1. Survey of studied web-spinning sawflies...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "Effect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx

Báo cáo lâm nghiệp: "Effect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx

... intensity of Melampsora larici-populina occurrence and the value of growth traits and biomass yield in Populus nigra  e correlation between the growth traits of stem diameter and plant height and ... some clones (clones 7 and 107) no yield decline was observed at all or it ranged only from 6% to 9% (clones 49 and 152). It is to note that clone 107...
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: "Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts. and its development" ppsx

Báo cáo lâm nghiệp: "Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts. and its development" ppsx

... given site condi- tions and stand type. From the aspect of horizontal structure, during the small forest development cy- cle, the majority of the stands in national parks of the Krkonoše Mts. proceed ... 539 ment and to the documentation of a great impact of anthropogenic processes (mainly of air pollution and forest management) on the condition...
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: "Health status of forest stands on permanent research plots in the Krkonoše Mts" pptx

Báo cáo lâm nghiệp: "Health status of forest stands on permanent research plots in the Krkonoše Mts" pptx

... METHODS Description of permanent research plots Similarly like in the evaluation of the condition and development of soils the condition and develop- ment of health status of forest stands were evaluated in ... described on the basis of evaluation of transition matrices describing the probability of a change in the assess- ment of defoliation...
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: " An estimation of willingness to pay for asparagus (Asparagus racemosus Willd.) collectors in Makawanpur District, Nepal" ppsx

Báo cáo lâm nghiệp: " An estimation of willingness to pay for asparagus (Asparagus racemosus Willd.) collectors in Makawanpur District, Nepal" ppsx

... t in 1998/99 and 74.9 t in 2000/01 (DFO 2002). Of the total amount of asparagus exported from Nepal, the An estimation of willingness to pay for asparagus (Asparagus racemosus Willd.) collectors ... Pre-testing of questionnaire and its final set- ting. Before formulating the exact wording of the question, two meetings of collectors were organized...
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: "Infrared images of heat fields around a linear heater in tree trunks: what can be learned about sap flow measuremen" pptx

Báo cáo lâm nghiệp: "Infrared images of heat fields around a linear heater in tree trunks: what can be learned about sap flow measuremen" pptx

... 10.1051/forest:2006046 Original article Infrared images of heat fi elds around a linear heater in tree trunks: what can be learned about sap flow measurement? Helmut T a * , Nadezhda N  b ,JanC b a Hahn-Meither ... isotherm of temperature T S parallel to the sap flow direction. In absence of sap flow this axial distan...
Ngày tải lên : 07/08/2014, 16:20
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Báo cáo lâm nghiệp: "Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot

Báo cáo lâm nghiệp: "Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot

... each combination of plot and month. Annual leaf biomass was calculated by summing monthly leaffall. To quantify the phenological pattern of leaffall and the corre- sponding phenological structure of the ... 2006) Abstract – We monitored leaf biomass, seasonal changes in leaffall, and plot growth for 11 years post-thinning in a secondary deciduous har...
Ngày tải lên : 07/08/2014, 16:20
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Báo cáo lâm nghiệp: "Uncertainty estimation of biomass expansion factors for Norway spruce in the Czech Republic" pot

Báo cáo lâm nghiệp: "Uncertainty estimation of biomass expansion factors for Norway spruce in the Czech Republic" pot

... the best way to increase the preci- sion of BEFs would be the reduction in error of the biomass and volume models (Fig. 5). Examining the sensitivity in un- certainty of the BEF by ignoring the ... age-classes (reflecting the available format of source data) and as a single value and to analyse the associated BEF uncertainty for Norway spruce stands in...
Ngày tải lên : 07/08/2014, 16:20
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Báo cáo lâm nghiệp: "Radial variation of wood density components and ring width in cork oak trees" pptx

Báo cáo lâm nghiệp: "Radial variation of wood density components and ring width in cork oak trees" pptx

... effect of bark stripping on wood produc- tionincorkoak(Quercus suber L.) and problems of growth ring definition, in: Pereira H. (Ed.), Cork oak and cork, Proceedings of the European Conference on Cork ... average ring density; MND, minimum density; MXD, maximum density; EWD, earlywood density, LWD, latewood density; RW, ring width; LWP, latewood percentage; HI, h...
Ngày tải lên : 07/08/2014, 16:20
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Báo cáo lâm nghiệp: "Lysimetric study of eucalypt residue management effects on N leaching and mineralization" potx

Báo cáo lâm nghiệp: "Lysimetric study of eucalypt residue management effects on N leaching and mineralization" potx

... placement) of woody residues from eucalyptus plantations on N availability and leaching, a study was developed in controlled conditions (lysimetric ex- periment), in the absence of nutrient uptake. ... rotation of eucalypts plantations [19], and the environmental conditions are mod- ified (e.g., soil water content, absence of root exudates and root uptake). Although experi...
Ngày tải lên : 07/08/2014, 16:21
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Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought" ppt

Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought" ppt

... 62 (2005) 377384 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005033 Original article Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought Marta ... are found to help cork oak seedlings to maintain turgor during moderate water stress and under high light envi- ronment (> 40% of full sun). In...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: " A collection of functions to determine annual tree carbon increment via stem-analysis" pot

Báo cáo lâm nghiệp: " A collection of functions to determine annual tree carbon increment via stem-analysis" pot

... h i ). Stem lateral surface area (A) is calculated as the sum of each log lateral area and the lateral area of the cone formed by tree tip: . 2 wG ⋅= π () ii ii i hh GG v −⋅ + = + + 1 1 2 () ntree n n i i hh G vV ... dell'Appennino Pistoiese, in Atti del seminario funzionalità del sistema faggeta, Accademia Ita- liana di Scienze Forestali, 1995, pp. 309–318. [6] Carey E., Sala A....
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "Relative efficiency of alternative methods to evaluate wood stiffness in the frame of hybrid larch (Larix × eurolepis Henry) clonal selection" potx

Báo cáo lâm nghiệp: "Relative efficiency of alternative methods to evaluate wood stiffness in the frame of hybrid larch (Larix × eurolepis Henry) clonal selection" potx

... Pilodyn. The final objective of this study is to ascertain the easiest method of ranking hybrid larch clones according to their wood stiffness. 2. MATERIALS AND METHODS 2.1. Testing methods The first ... radial faces of the same ring, in the same orientation (North and South): 2 measurements were carried out in the heartwood, and 2 in the sapwood. Th...
Ngày tải lên : 08/08/2014, 01:22
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