Báo cáo lâm nghiệp: "Results of Czech-American cooperation in interspecific fir hybridization in 2008 and 2009" pot

... OF FOREST SCIENCE, 53, 2007 (Special Issue): 3–10 Composition of psocid taxocenoses (Insecta: Psocoptera) in Fageti -Piceeta s. lat. and Piceeta s. lat. forests in the Western Carpathian Mts. O. ... Fageti -Piceeta s. lat. and the 8 th – Piceeta s. lat. ese AVZ occur in the study area in the Moravskoslezské Beskydy Mts. in...

Ngày tải lên: 07/08/2014, 03:22

... broad natural range that includes most of Europe and extends into North Africa, Asia Minor, and western Siberia Study of natural hybridization between Alnus incana (L.) Moench. and Alnus glutinosa ... Republic ABSTRACT: Variation of metric and qualitative characteristics of A. incana (L.) Moench. and A. glutinosa (L.) Gaertn. has been st...

Ngày tải lên: 07/08/2014, 03:22

... m 3 /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 Republic V. K Faculty of Forestry and Woo...

Ngày tải lên: 07/08/2014, 03:22

... forestry mapping rationalization. Digital photogrammetry in forestry mapping Digital photogrammetry is a process of digital image interpretation in a computer without human assistance. Digital image ... the beginning of the 90’s, forestry mapping changed from the analogue making of the maps with thematic forestry themes into a system, the output of which is...

Ngày tải lên: 07/08/2014, 03:22

... results of phenological monitoring of the tree layer in a mixed stand in the region of the Drahanská vrchovina Upland in 2004–2007. e onset and duration of particular phenological stages are ... can also occur. Phenological data are a certain expression of the climate character of a given region. us, they can contribute to assess the...

Ngày tải lên: 07/08/2014, 03:22

... e application of A. cilicica, A. alba and A. nordmanniana resulted in 14% of germi- nating seedlings at least. Utilizing A. concolor, A. grandis and A. pinsapo lowered the germination rate ... 2009. 2009 In spring 2009 (beginning May 1 st ) pollination took place in two out of the four seed orchards (1 and 4).  e pollen of Abies fraseri was obtained from North Carol...

Ngày tải lên: 07/08/2014, 10:21

... determine the stability of spruce stands in the areas of threat to forest stability in the Beskid Śląski and Beskid Żywiecki Mts. in the light of their nutrition. In 2002 samples of soil and of ... Beskid Śląski Mts.; Beskid Żywiecki Mts.; Southern Poland 42 J. FOR. SCI., 54, 2008 (2): 41–48 VIII, Province 1 of the Beskid Śląs...

Ngày tải lên: 07/08/2014, 10:21

... article Measurement of free shrinkage at the tissue level using a n optical microscope with an immersion objective: results obtained for Douglas r (Pseudotsuga menziesii) and spruce (Picea abies) Patrick ... spite of the matter loss due to cutting (the ring width was approximately 7 mm for the two rings of Douglas fir and 3.5...

Ngày tải lên: 07/08/2014, 16:20

... cost associated to leaf area renewal in saplings of two co-occurring temperate tree species (Acer platanoides L. and Fraxinus excelsior L.) along a light gradient Sandrine BARTHOD a , Daniel ... leaf mass per unit area, LMA) to the cost associated with leaf area renewal (construction cost of the leafy shoot per unit leaf...

Ngày tải lên: 08/08/2014, 00:22

... 10.1051/forest:2003011 Original article Comparison of soil water-contents as measured with a neutron probe and time domain reflectometry in a Mediterranean forest (“Sierra de Gata”, Central Western Spain) Mar a Amparo ... useful information about the actual evapotranspiration, drainage, and leaching [14]. Over the past decade, interest in water fluxes in...

Ngày tải lên: 08/08/2014, 01:21

... article Predicting of oak wood properties using X-ray inspection: representation, homogenisation and localisation. Part II: Computation of macroscopic properties and microscopic stress fields Patrick Perré and ... homogenisation: Part II of this paper is devoted to the calculation of the macroscopic properties and the determination of t...

Ngày tải lên: 08/08/2014, 01:21

... retained and the kind of mixed stand [33]. Finally, other recent studies concerning silvicultural aspects of Scots pine (Pinus sylvestris L.) without including GTR can be founded in Mörling [22] ... different silvicultural alternatives. The yield model was elaborated for Scots pine stands in northern Spain using 75 temporary plots from the Sec- ond National Forest I...

Ngày tải lên: 08/08/2014, 01:22

... the plant species diversity of forest-floor vege- tation in long -rotation L. kaempferi plantations, as compared with that of standard -rotation plantations and abandoned cop- pice forest, in central ... 31]). Thus, investigation of plant species diversity in long -rotation plantations requires compa- rison with standard -rotation plantations. Roberts and...

Ngày tải lên: 08/08/2014, 01:22

... former one alone to describe annual wood increment. Short note Influence of repeated defoliations by insects on wood increment in common oak (Quercus robur L) VV Rubtsov Institute ... effects of insect defoliations on stem wood increment have been studied by many investigators. Results and techniques used can be found for comm...

Ngày tải lên: 08/08/2014, 18:21

... ultrapure water as eluant. 2.4.3. Amino-acid analysis Extraction was carried out at 4 °C. 40 μL of an internal standard (α-butyric acid) were added to samples ... of primary leaves), of the tap root (TR) and of the three longest lateral roots (LR; as an assessment of the length of the lat- eral roots) of each...

Ngày tải lên: 09/08/2014, 04:20