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Báo cáo lâm nghiệp: " Decay resistance in Dicorynia guianensis Amsh.: analysis of inter-tree and intra-tree variability and relations with wood colour" pptx

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: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt

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 societies F. S Zurich, Switzerland ABSTRACT: e present distribution ... it has integrated increasing societal demands into current management practices. To assess the present and future options in management of forests,...

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 procedures 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: "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: "Litter production in a Quercus suber forest of Montseny (NE Spain) and its relationship to meteorological conditions" pptx

Báo cáo lâm nghiệp: "Litter production in a Quercus suber forest of Montseny (NE Spain) and its relationship to meteorological conditions" pptx

... analyse interannual and seasonal variation of litterfall in a cork oak forest of the Montseny massif (Catalonia, north-eastern Iberian Peninsula) and its relationship with meteorological data. 2. ... seasonal variation and twigs peaked in early summer and autumn. Rainfall precipi- tation was more variable and less seasonal than temperature but rainfall generally...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: " Decay resistance in Dicorynia guianensis Amsh.: analysis of inter-tree and intra-tree variability and relations with wood colour" pptx

Báo cáo lâm nghiệp: " Decay resistance in Dicorynia guianensis Amsh.: analysis of inter-tree and intra-tree variability and relations with wood colour" pptx

... 10.1051/forest:2004030 Original article Decay resistance in Dicorynia guianensis Amsh.: analysis of inter-tree and intra-tree variability and relations with wood colour Nadine AMUSANT a *, Jacques ... Variability of durability and colour of Dicorynia guianensis 377 Figures 8 and 9 give respectively reflectance of Z1 (outer heartwood) and Z3 (...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "Frost resistance of seeds in Mediterranean oaks and the role of litter in the thermal protection of acorns" docx

Báo cáo lâm nghiệp: "Frost resistance of seeds in Mediterranean oaks and the role of litter in the thermal protection of acorns" docx

... freezing and exotherm profiles for the four species studied (in increasing order of frost resistance) . Exotherms represented are obtained from mean values of starting point, width and duration of ... leaf litter cover which protected acorns during winter. The insulating role of leaf litter along a winter season in a Q. faginea stand in the Zaragoza province was...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Sexual reproduction in Populus II. Information molecules of the pollen grain" pptx

Báo cáo lâm nghiệp: "Sexual reproduction in Populus II. Information molecules of the pollen grain" pptx

... attractive tool for overcoming inter- specific incompatibility in poplars. Sexual reproduction in Populus II. Information molecules of the pollen grain M. Gaget 1 M. Villar 2 C. ... semi-tected exine (Figs. 1 and 2). The presence of a great amount of osmiophilic components in the pollen coat is observed within the arcades of the...

Ngày tải lên : 09/08/2014, 04:20

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Báo cáo lâm nghiệp: " An for attempt at generating haploid lines of Poplar species genetic manipulation and breeding program" pptx

Báo cáo lâm nghiệp: " An for attempt at generating haploid lines of Poplar species genetic manipulation and breeding program" pptx

... An attempt at generating haploid lines of Poplar species for genetic manipulation and breeding programs K.E. Wolter B.H. McCown Department of Horticulture, University of ... procedures for poplar organogenesis and regeneration (Wolter, 1968; Russel and McCown, 1988); 5) transcription of desirable genes into poplar and increased r...

Ngày tải lên : 09/08/2014, 04:20

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Báo cáo lâm nghiệp: " An for attempt at generating haploid lines of Poplar species genetic manipulation and breeding program" pps

Báo cáo lâm nghiệp: " An for attempt at generating haploid lines of Poplar species genetic manipulation and breeding program" pps

... P.K., Dandekar A.M. & Durzan D.J. (1988) Somatic proembryo formation and tran- sient expression of a luciferase gene in Douglas fir and loblolly pine protoplasts. Plant ... conditions for physicochemical measurements, improved methods for image analysis (e.g., Serra, 1982) and a better understanding of how abscisic acid and other plant g...

Ngày tải lên : 09/08/2014, 04:20

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