Báo cáo lâm nghiệp: "Analysis of snow accumulation and snow melting in a young mountain spruce and beech stand in the Orlické hory Mts , Czech Republic" pptx
Báo cáo lâm nghiệp: "Analysis of snow accumulation and snow melting in a young mountain spruce and beech stand in the Orlické hory Mts., Czech Republic" pptx
... open area. In the final stage of melting in the last decade of April, the snow melting rate in spruce reached about 26 mm/day, in beech about 28 mm/day and in the open area maximally 37 mm/day. ... Agricul-ture of the Czech Republic, Research Plan No. 000207020 1, Project No. 1G 57016 and Project QH 92073. Analysis of snow accumulation and snow melting in a young mountain spruce and beech stand in ... in a spruce and beech stand. e depth of the samples was measured, their weight was determined and the snow water equivalent and snow density were calculated.Moreover, in spring 2006 in the...
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Báo cáo lâm nghiệp: "Analysis of some dynamic series of forest production and trends of forest economics in the Czech Republic" ppt
... and interval. Studied variables are classified by their character as extensive and intensive, by the time interval length as momentary and interval, by the course of values as periodical and ... the one hand and due to increasing inputs on the other hand, last but not least also due to the projections of near-natural forest management methods and increasing area under special management ... Class III. A 1,6 53 1,7 19 1,7 46 1,7 54 1,6 97 1,8 95 2,1 39 of this: oak 1,9 43 1,9 70 2,0 70 2,0 57 1,9 48 2,1 94 2,5 95 beech 1,6 39 1,7 41 1,7 65 1,7 70 1,6 27 1,8 18 1,7 96Logs Class III. B 1,3 12 1,3 40 1,3 79...
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Báo cáo lâm nghiệp: "Analysis of herbicide effects on Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) natural regeneration" ppsx
... of the Training Forest Enterprise in Kostelec nad Černými lesy has a long tradition and is mainly connected with Liechtenstein estate. On the area of 6,7 34 ha, Douglas fir occurs in 98 stands ... SCI ., 5 6, 2010 (5): 209–217present, Douglas fir grows in our forests on the area of 4,8 08.5 ha, that is about 0.2% of forest land of the Czech Republic. Forest stands of the first four age classes ... stated that Douglas fir natural regeneration under the shelter of parent stand takes place quite fre-quently in most European countries. It appears mainly in properly tended stands at the age...
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Báo cáo lâm nghiệp: "Analysis of the production potential of raw wood in the forests of Slovakia" pps
... felling in the forest stands of Slovakia in 198 0, 1996 and 2003. e data are arranged into the sets according to age classes, groups of tree spe-cies (coniferous, broadleaved) and forest categories ... data on the area, growing stock and planned decennial timber felling in the forests of Slovakia in 198 0, 1996 and 2003. e production potential of forests was evaluated on the basis of the annual ... updated regularly every year using the data on the forest stand status obtained from the renewal of forest management plans. Data on the area of about 1/10 of Slovak forests are updated...
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Báo cáo lâm nghiệp: "Analysis of the aerial application of fertilizer and dolomitic limestone" docx
... cases, one of the main findings is that the variability of the spread amount of substance on the particular stand area is considerably different from the required amount, and in some cases it was ... 47–57 In recent years there has been an actual problem with the health status of Norway spruce stands in Slovakia. One of the numerous reasons for the decline of these stands can be the lack of ... bring more relevant information on the effect of large-scale fertilization or liming with respect to stand age, growth stage, representation of Norway spruce, regeneration, nature of stands,...
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Báo cáo lâm nghiệp: "Analysis of the accuracy of GPS Trimble Juno ST measurement in the conditions of forest canopy" pot
... performance standards guarantee 98% of the daily PDOP 6 and better, and functionality of at least 21 satellites with 98% probability on the annual average. In general, the relevant accuracy of the ... points. e resultant data were evaluated by the analysis of variance (ANOVA) on the basis of several fac-tors (stand characteristics, PDOP and measure-ment time ), both before and after the ... west of Brno, in the vicinity of the Brno Dam, and the second area (area B) was situated northeast of Brno, on the southern border of the for-est ground belonging to the Křtiny Training Forest...
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Báo cáo lâm nghiệp:"Analysis of log shape and internal knots in twenty Maritime pine (Pinus pinaster Ait.) stems based on visual scanning and computer aided reconstruction" pptx
... reconstruction of logsusing WoodCim® and reality in relation to the number of knots and the Z coordinate of knot origin (height in the stem) as mean of deviations (real-reconstructed, in mm) and standard ... (subspeciespinaster) and in the Atlantic influenced regions of Portugal,Spain and France (subspecies atlantica). In the last decadesthis species was introduced with success in plantations in South Africa, ... registered in data files as xy co-ordinates. The slab thickness measured duringscanning was also introduced in the slab data file [24]. The data concerning the geometric and knot features of the individual...
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Báo cáo lâm nghiệp: "Analysis of lipophilic compounds in needles of Pinus pinea L" docx
... acidwas also the main resin acid in wood [4] and oleoresin [5] of P. pinea. Moreover, seco 1, seco 2, pimaric,sandaracopimaric, isopimaric, the couple of levopimaric+ palustric, dehydroabietic, ... On the otherhand, the diterpenes constituted more than 60% of the ex-tract analyzed, and of these, the resin acids were the mostabundant fraction. Abietic acid was the main resin acid.For the ... NoteAnalysis of lipophilic compounds in needles of Pinus pinea L.Brígida Fernández de Simón a, * , Mar a Concepción Garc a Vallejo a , Estrella Cadah a a , Carlos Arrabal Miguelb and Manuel...
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Báo cáo lâm nghiệp:" Comparison of soil water-contents as measured with a neutron probe and time domain reflectometry in a " ppsx
... usefulinformation about the actual evapotranspiration, drainage, and leaching [14]. Over the past decade, interest in water fluxes in natural ecosystems has increased owing to the appearance of evidence ... Aptdo. 25 7, Salamanca 3707 1, Spainb Centro Universitario, Universidad de Extremadura, Plasencia 1060 0, Cáceres, Spainc Área de Edafolog a, Universidad de Salamanca, Salamanca 3708 0, Spain(Received ... of evidence of changes in the annual distribution of rainfall and a hypothetical reduction in the actual evapotranspiration as a consequence of the global change [ 4, 21 ], and alsohydrological changes induced...
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Báo cáo lâm nghiệp: "Micropropagation of hybrid walnut trees (Juglans nigra x Juglans regia) through culture and multiplication of embryos" ppt
... have shown strong effects of ageing and rejuvenation (Jay-Allemand etal ., 1988 ), latent contamination, low reac-tivity of buds or meristems on the esta-blishment of mature ... wider adaptability.Breeding programs are in progress atINRA (Institut National de la RechercheAgronomique, Bordeaux and Orl6ans) and they need efficient methods of vegetativepropagation. ... Micropropagation of hybrid walnut trees(Juglans nigra x Juglans regia) through culture and multiplication of embryosD. CornuC. Jay-Allemandbres Forestiers, INRA, ArdorAm6lioration...
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