Báo cáo lâm nghiệp: "Quantity and distribution of fine root biomass in the intermediate stage of beech virgin forest Badínsky prales" potx

... horizons rather by the reduction of the finest root length than by the reduction of root tips density.CONCLUSIONS The research of fine roots in the intermediate stage of a beech virgin forest ... cells with the dominant function of water and minerals supply. e ratio between the fine root length and the number of root tips is an indicator of the intensity of the fine root forking.A direct ... length. With the increasing value of the fine root length the number of root tips increases as well. Therefore the highest frequency of root tips was recorded in the uppermost mineral soil...

Báo cáo lâm nghiệp: "Extent and distribution of beech (Fagus sylvatica L.) regeneration by adult trees individually dispersed over a spruce monoculture" ppsx

... frame, the height of individuals in the main layer (they are not visibly dominant, nor are they suppressed) and ﬁnally the thickness of the root collar to the nearest 0.1 mm. In the case of “Telc” ... it was the height and thickness of the root collar of sample regenerated individuals selected from within the fencing and outside of it.e basic spatial statistic of the point layer of re-generated ... determined by the width of the crown, section 2 by the span of the distance from the trunk circumference to the breakpoint of the curve. From this point in section 3 the curve trend continuously...

Báo cáo lâm nghiệp:" Structure, spatial distribution and competition in mixed jack pine (Pinus banksiana) stands on clay soils of eastern Canada" pps

... for the development of growth and stand dynamics models of the boreal mixedwoods of Canada. Among other things, they stress the importance of explicitly taking into account the spatial distribution ... difference in skewness in basal area distribution of jack pine between pure jack pine stands and stands composed of a mixture of jack pine and either of whitebirch or aspen. Trembling aspen basal ... distribution of the three main tree species in pure jack pine stands and standscomposed of a mixture of jack pine and white birch and jack pine and trembling aspen.Source DF Mean square P > FStand...

Báo cáo lâm nghiệp: "Above- and belowground distribution of dry matter and carbon biomass of Atlantic beech (Fagus sylvatica L.) in a time sequence" doc

... between the 50- and the 81-year-old stages. The biomass is mainlystored in the trunk, then the branches and then the roots (Fig. 1).Throughout the time sequence, the contributions by the trunk,branches ... that of aerial wood lefton the ground: 52 t/ha, and that of the remaining roots left in the soil: 65 t/ha. The future or the percentage distribution, of the carbon biomass, after each thinning, ... half of the total biomass of the corre-sponding (sub-)component. It was found that the carbon bio-mass of beech was mainly distributed in the trunk (at least51%), then in the branches and then...

Báo cáo lâm nghiệp: "Regeneration and game damage in the Krušné hory Mts. assessed on the basis of National Forest Inventory of the Czech Republic" pps

... 285etc., and their combination, which means that the category of game damage is the sum of damage types investigated during National Forests Inventory ac-cording to its methodology. In the investigated ... nature from the investigation of Na-tional Forest Inventory. In Saxony, the other method has successfully been applied. It is presented in the regulations concerning the assessment of the forest ... means of a set of mathematical and statistical methods that are described in the work Inventory of forests in the Czech Republic, Set of mathematical and statistical evaluation methods, Mathematical...

Báo cáo lâm nghiệp: "Growth and physiological state of beech seedlings grown in a nursery in diﬀerent light conditions" docx

... lower after 30 days than in the leaves of plants left in the shade and in control seedlings growing in the gap.Photoinhibition in beech seedlings grown in the shade and transferred to full ... seedlings growing in the open area, higher values in the gap and the highest values in seedlings growing under shelterwood, ex-plained these diﬀ erences by increased photoinhibi-tion in beeches ... observed in seedlings from both the 4th and the 7th FAZ during the whole growing season (Fig. 2).Higher maximum values of ETR in unshaded seedlings of various tree species including the Euro-pean...

Báo cáo lâm nghiệp: "Structure and development of forest stands on permanent research plots in the Krkonoše Mts" pdf

... dynamics of beech, mixed (fi r beech and spruce beech stands) and spruce stands, relict pine woods and stands in the ecotone of the upper forest limit in diff erent site, stand, air-pollution and ... (2006): Modelling the structure and development of forest stands using the growth simulator SIBYLA. In: V S. (ed.): Increasing the Ratio of Close-to-Nature Structures of Forests with Special ... erentiation of the forest standTable 3 gives overview of all three structural in- dices used in the study.  e horizontal structure of the forest stand was from the fi rst year of obser-vation random;...

Báo cáo lâm nghiệp: "reproductive and morphometric characteristics of wild boar (Sus scrofa) in the Czech republic" pot

... (without the ending and often extended hairs), metatarsal length (LTp) from the calcaneal joint to the tip of the hoof, ear length (LA) from the root of the ear to the tip, and height at the withers ... suggest the opinion, that in Doupov region can absent the dominate female. But on the other side, many of sudies describe the absence of adult male as main factor aﬀecting the time of far-rowing ... a dressed in- dividual including head and legs, or (iii) the weight of a dressed individual without head and legs. Age was determined in all animals. In indi-viduals up to the age of 2 years,...

Báo cáo lâm nghiệp: "Survival and growth of outplanted seedlings of selected tree species on the High Tatra Mts. windthrow area after the first growing season" pps

... the seedling types of pine was almost 20% in autumn and even 42% in spring outplanting. However, es-pecially the comparison of bareroot and container-ized spruce and pine seedlings in this ... per cent of containerized and 75% of bareroot seedlings (most – 89% of bareroot spruce, least – 59% of bareroot pine seedlings) survived after the first growing season. Planting time and Ectovit ... resulted from 2004 windbreak in the High Tatra Mts. as very endangered from the viewpoint of the mechanical eﬀect of wind. Regarding the stabilization of stands against wind the author emphasised...

Báo cáo lâm nghiệp: "Productivity and cost of manual felling with a chainsaw in Caspian forests" pptx

... the production and cost of other harvesting machines or systems used in the region and will be helpful for the loggers in selecting an appropriate system under certain stand and harvest circumstances.e ... initial costs of mechanized harvesting machines, larger diameters and crowns of hardwoods, and the relatively steep terrain in Caspian forests, manual felling with a chainsaw is still the most ... 2007). In Iran, industrial logging is carried only in the Caspian forests. High-quality hardwood sawn timber is being harvested in these forests. In- formation on the productivity, cost and application...

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