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Báo cáo lâm nghiệp: "Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects on cambioxylophagous fauna" docx

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: "Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia)" docx

Báo cáo lâm nghiệp: "Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia)" docx

... Supported by Grant Agency of the Slovak Republic, Project No. 2/4159/04. Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia) Ľ. D 1 , ... (3): 93–100 97 lings from the forest nursery planted in the substrate from the declining forest stand, 6 – spruce seedlings from the nurs...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Species composition in low mountain beech (Fagus sylvatica L.) stands in the Bieszczady National Park under the global warming" doc

Báo cáo lâm nghiệp: "Species composition in low mountain beech (Fagus sylvatica L.) stands in the Bieszczady National Park under the global warming" doc

... conditions. SHORT COMMUNICATION Species composition in low mountain beech (Fagus sylvatica L.) stands in the Bieszczady National Park under the global warming D. S 1 , R. J 1 , G. R 1 , ... in the ﬁr volume and the increase in beech volume was collected. – However, the increasing share of beech, accompa - nied by a decrease...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects on cambioxylophagous fauna" docx

Báo cáo lâm nghiệp: "Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects on cambioxylophagous fauna" docx

... chemical thinning consists in the fact that trees killed by chemical treatment and left in the stand to their natural Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its eﬀects ... Institute, Brandýs nad Labem, Czech Republic ABSTRACT: Chemical thinning was applied in blue spruce (Picea pungens Engelm.) stands by the appli...

Ngày tải lên : 07/08/2014, 03:22

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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

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

... 6215648902, and the Ministry of Agriculture of the Czech Republic, Project QG 60060. Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions ... diﬀerence in the rooting depth of the whole root system (see Rooting depth of the whole root system). As the result of dis...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Timber harvesting in the ukrainian carpathians: Ecological problems and methods to solve them" ppsx

Báo cáo lâm nghiệp: "Timber harvesting in the ukrainian carpathians: Ecological problems and methods to solve them" ppsx

... using engineering structures and drainage and have rather large longitudinal inclines, which in most cases does not allow using them for the passage of wheeled machinery skidders and tractors ... damage to the bearing surface and soil sampling. Before the beginning of investigations the radius of turns, lengths of linear plots, weight and geometrical parameters...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Multiaged silviculture in North America" potx

Báo cáo lâm nghiệp: "Multiaged silviculture in North America" potx

... is is increasing the interest in multiaged silviculture in North America as in other regions of the world. An additional factor in uencing current management is the attempts to integrate ... (1965). e southern pine forests in Arkansas have also been a focal point for multiaged silvicultural pro- cedures in the North America. e procedure in these loblolly pine/shortl...

Ngày tải lên : 07/08/2014, 04:20

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Báo cáo lâm nghiệp: "Available nitrogen in the surface mineral layer of Serbian forest soils" docx

Báo cáo lâm nghiệp: "Available nitrogen in the surface mineral layer of Serbian forest soils" docx

... subtraction of the initial content of available mineral N (for the anaerobic incubation of NH 4 + -N content); N initial ‒ initial content of available mineral N (for the anaerobic incubation of NH 4 + -N ... the mineralization of nitrogen in the surface mineral layer of forest soils is diﬀ erent from that in the forest ﬂ oor. Besides, total c...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Seasonal fluctuation in germination of short and longterm stored Norway spruce" ppsx

Báo cáo lâm nghiệp: "Seasonal fluctuation in germination of short and longterm stored Norway spruce" ppsx

... characteristics of GE and GC of analysed samples of short- term stored seed (S) and long-term stored seed (L) in the ﬁrst year (T1) and the second year of testing (T2) Variant N Germination energy (GE %) Germination ... values of germination energy (GE) and germination capacity (GC) in individual months (M = 1, 2, 3 … 12), in total 10 for short- term (...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Nutrients in the aboveground biomass of substitute tree species stand with respect to thinning – blue spruce (Picea pungens Engelm.)" doc

Báo cáo lâm nghiệp: "Nutrients in the aboveground biomass of substitute tree species stand with respect to thinning – blue spruce (Picea pungens Engelm.)" doc

... content in the biomass on the thinned plot represented 8 9–9 2% of the values calculated for the control plot without thinning. On the basis of presented research, which was done within the blue spruce ... years, the investigated substitute blue spruce stand accumulated: N – 336 kg, P – 28 kg, K – 138 kg, Ca – 159 kg, Mg – 28 kg per...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "A change in structural diversity and regeneration processes of the spruce virgin forest in Nefcerka NNR (TANAP) in relation to altitude" docx

Báo cáo lâm nghiệp: "A change in structural diversity and regeneration processes of the spruce virgin forest in Nefcerka NNR (TANAP) in relation to altitude" docx

... diﬀerence in the index was conﬁrmed in the spruce virgin forest in the altitudi- nal range of 1,300–1,400 m. e analysis of the structure of the spruce virgin forest in Nefcerka NNR assessed according ... Education of the Slovak Republic, Project No. 0082-06. A change in structural diversity and regeneration processes of the spr...

Ngày tải lên : 07/08/2014, 10:22

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Báo cáo lâm nghiệp: "Population genetics of Norway spruce (Picea abies Karst.) at regional scale: sensitivity of diﬀerent microsatellite motif classes in detecting diﬀerentiation" pps

Báo cáo lâm nghiệp: "Population genetics of Norway spruce (Picea abies Karst.) at regional scale: sensitivity of diﬀerent microsatellite motif classes in detecting diﬀerentiation" pps

... 10.1051/forest:2006029 Original article Population genetics of Norway spruce (Picea abies Karst.) at regional scale: sensitivity of different microsatellite motif classes in detecting differentiation Ivan S a,b * , ... type and mutation rate on the resulting pattern of differentiation. A further source of variation in the estimates of genetic di...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Compression stress in opposite wood of angiosperms: observations in chestnut, mani and poplar" ppsx

Báo cáo lâm nghiệp: "Compression stress in opposite wood of angiosperms: observations in chestnut, mani and poplar" ppsx

... involved measurements of RGS and longitudinal drying shrinkage, and were presented in de- tails in previous papers [10, 11]. New data on poplar are also shown, including measurements of RGS and ... contin- uum in behaviour from the “normally” tensile stressed wood to the compression stressed wood. Inside the group of nor- mal wood samples (including compression values),...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀects of soil mechanical treatments combined with bramble and bracken control on the restoration of degraded understory in an ancient beech forest" pptx

Báo cáo lâm nghiệp: "Eﬀects of soil mechanical treatments combined with bramble and bracken control on the restoration of degraded understory in an ancient beech forest" pptx

... dependent on the initial vegetation type and on soil seed bank composition. We therefore encourage additional experiments in diﬀer- ent stand and soil types in order to establish the generality of these ... on the considered soil parameters. Both disc and rotary ploughing induced an overall lowering of soil nutrient index and soil compaction, but diﬀe...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Chemical composition of the periderm in relation to in situ water absorption rates of oak, beech and spruce fine roots" doc

Báo cáo lâm nghiệp: "Chemical composition of the periderm in relation to in situ water absorption rates of oak, beech and spruce fine roots" doc

... 763772 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2003071 Original article Chemical composition of the periderm in relation to in situ water absorption rates of oak, beech and spruce fine roots Christoph ... from the terminal root tip in all species. At 500 mm distance from the tip, periderm thickness had increased to 50 àm in beech and...

Ngày tải lên : 08/08/2014, 01:21

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