Báo cáo lâm nghiệp: "Ecological and morphological notes on Notopygus bicarinatus (Hymenoptera: ichneumonidae)" ppsx
Báo cáo lâm nghiệp: "Ecological conditions influencing the localization of egg-laying by females of the cockchafer (Melolontha hippocastani F.)" pps
... relation between the extent of the damage and the individual characteristics of the experimental plots. e relation between the extent of the damage and the method of estab-lishment of the stands ... explored the ecological conditions, which influence the female Melolontha hippocastani F. in their selection of the locality for laying eggs. In the region of mass outbreak of M. hippocastani in the ... SCIENCE, 53, 2007 (Special Issue): 16–24Ecological conditions influencing the localization of egg-laying by females of the cockchafer (Melolontha hippocastani F.)M. ŠForestry and Game Management...
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Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc
... of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)M. T1, J. V21Faculty of Forestry and Wood Sciences, ... SlovakiaABSTRACT: Irradiation experiments on Ips typographus (L., 1758) with doses of 15 and 30 Gy (cobalt 60) were con-ducted in 2006. e effect of irradiation on the mating behaviour and reproduction success ... however. We can conclude the doses of 15 and 30 Gy do not have a significantly negative effect on the behaviour of ir-radiated males in the preparation of entry holes and the creation of mating chambers....
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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
... possibilities of National Forest Inventory for the evaluation end, there comes the Inventory of Game Damage in the Smaller Territo-rial Units.CONCLUSIONResults from National Forests Inventory ... during repeated investigation in comparison with the rest of the investigated territory. In the course of five years, in relation to the original points and on the basis of a new investigation, ... 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...
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Báo cáo lâm nghiệp: "Production and humus form development in forest stands established on agricultural lands – Kostelec nad Černými lesy region" potx
... the Ministry of Agriculture of the Czech Republic, Research Project No. QG 50105.Production and humus form development in forest stands established on agricultural lands – Kostelec nad Černými ... composition). e study was performed in the stands of four tree species on afforested agricul-tural lands, in a neighbouring forest stand on con-tinuously forested land (mixed Scots pine – Norway ... were registered in the Douglas fir stand again, visibly lower in the pine and spruce stands on the agricultural lands and the lowest on the old forest soil. In the mineral horizons, the arable...
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Báo cáo lâm nghiệp: "Effect of stand segmentation on growth and development of Norway spruce stands" pps
... international IUFRO experiment dealing with the ra-tionalization of young spruce stand tending (A 1977). One part of this series, Machov CZ 14 experi-Effect of stand segmentation on growth and ... values (mean and standard deviation) of stand volume (open triangles) and volume of mean stem (grey circles) of spruce stands in Machov experiment at the age of 41 years (2007). Comparison for three ... of stand segmentation (track width) on production characteristics and static stability of young spruce stands it can be stated:– Positive effect on growth characteristics was found only for...
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Báo cáo lâm nghiệp: " Comparison of deposition fluxes on the open area and in mountain spruce stands of different density" pdf
... within forest stands. e comparison of bulk deposition fluxes of Ca, Mg, K, S-SO4, N-NO3 and N-NH4 in mountain spruce stands of different stand density and bulk deposition fluxes on the open ... N-NO3 and N-NH4 in the mountain spruce stands of different stand density and bulk deposition fluxes on the open area were measured at the study site Bílý Table 4. Mean annual deposition fluxes of ... S-SO4 in the spruce stands and bulk deposition fluxes on the open area. Throughfall deposition fluxes of Ca, Mg, K and Table 7. Statistical analysis (t-test) between the deposition fluxes of selected...
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Báo cáo lâm nghiệp: "Growth and physiological state of beech seedlings grown in a nursery in different light conditions" docx
... to a gap was still 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 ... weight and volume of shoots and root systems than seedlings grown in the shade. A higher number of leaves, larger total leaf area and higher dry matter of leaves per 1 plant were de-termined in seedlings ... erent light conditions after outplanting. Many data are available on reactions of seedlings grow-ing in the shade to a sudden increase in light access. Some characteristics change very rapidly,...
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Báo cáo lâm nghiệp: "Effect of climatic factors on the dynamics of radial increments of Norway spruce, European beech and sessile oak" potx
... the effect of climatic factors on radial increments of treese effect of climatic factors on radial increments of trees was studied in detail by means of corre-lation analysis on standardized ... correlation models of the effect of climatic factors on radial increments of treesAfter performing the detailed analysis of pair cor-relation coefficients sets of monthly precipitation amounts and ... increment of forests in Europe is a conse-quence of higher precipitation. In the same study M et al. (2008) did not clearly confirm the Effect of climatic factors on the dynamics of radial increments...
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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 ... ability in higher elevations and tolerates conditions in the ecotone of the up-per forest limit, although its optimal growth and production is reached in the conditions of the 5th and 6th forest ... whole stand formed exclusively by spruce. CONCLUSIONS e presented research on structure and develop-ment of forest stands in national parks of Krkonoše Mts. describes the stand of forest...
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Báo cáo lâm nghiệp: "Sulphur and nitrogen concentrations and fluxes in bulk precipitation and throughfall in the mountain and highland spruce stands in the Czech Republic" docx
... concentrations and fl uxes in bulk precipitation and throughfall in the mountain and highland spruce stands in the Czech RepublicI. D, L. M, J. K, I. MInstitute of Forest ... radiation and to hold the funnels approximately 1 m above the ground. ere were 7 collectors randomly dis-tributed at the mountain spruce stand and 5 at the highland spruce stand. During the winter ... given in Table 1. Bulk precipitation and throughfall sampling were carried out at both sites during 2006–2008. For sampling throughfall in the spruce stand and atmospheric precipitation on the...
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Báo cáo lâm nghiệp: "Ecological and morphological notes on Notopygus bicarinatus (Hymenoptera: ichneumonidae)" ppsx
... the depth of 15 cm) was dug away and removed at these sites, followed by Ecological and morphological notes on Notopygus bicarinatus (Hymenoptera: Ichneumonidae) J. H1,2, K. H3, ... description, but wholly dis-agrees with monochromatic yellow pterostigma as mentioned by K (2002). e male cocoon is 9–12.5 mm long and 3–4.5mm wide, the female cocoon is 11–13 mm long and ... Ichneumonoidea 2004. Taxonomy, biology, morphology and distribution (Ichneumonidae). Taxapad 2005 (Scientific names for information management). Interactive electro-nical catalogue on DVD/CD-ROM....
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Báo cáo lâm nghiệp: "Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea abies [L.] Karst.) from intensive nursery technologies with current bareroot plants" ppt
... outplanting (G 1982; M 1982; A 1983; D, O- 1990; W 1990).Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea ... evaluated the growth of different types of planting material in the first years after outplanting to a mountain locality. MATERIAL AND METHODSPlantable plants of Norway spruce from the 8th ... outside from the root ball to the adjacent soil.It follows from the above results that many spe-cialized papers compared container and bareroot planting material with respect to the growth of...
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Báo cáo lâm nghiệp: " Soil and plant communities development and ecological effectiveness of reclamation on a sand mine cast" ppt
... M., KRZAKLEWSKI W., 2007. Soil organic matter, C and N accumulation during natural succession and reclamation in an opencast sand quarry (southern Poland). Archives of Agronomy and Soil Science, ... abundance of species (number of species) in plant communities depending on the age and category of areas in the Szczakowa sand mine castAge of areas (years)Areas left to succession Reclaimed areas5 ... Cracow, Cracow, PolandABSTRACT: e aim of the study was to assess terrestrial ecosystem development (mainly vegetation and soil charac-teristics) in the area of a sand mine cast (located in southern...
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Báo cáo lâm nghiệp: "Physiological and morphological responses of dormant and growing Norway spruce container seedlings to drought after planting" docx
... articlePhysiological and morphological responses of dormant and growing Norway spruce container seedlings to drought after plantingPekka HELENIUS*, Jaana LUORANEN, Risto RIKALAFinnish Forest ... stage of seedlings and the drought period on Ψshoot pd and Ψshoot d (p < 0.001), both beinglower in growing seedlings than in dormant seedlings after thethird and fourth week of drought. Both ... concentration of Table I. Morphological attributes (mean ± SD) of subsamples (n =40) of dormant and growing seedlings at the beginning of the experi-ment (24 June).Attribute Dormant seedlings Growing seedlings Height...
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Báo cáo lâm nghiệp: "Effects of soil temperature on gas exchange and morphological structure of shoot and root in 1 yr old Scots pine (Pinus sylvestris L.) seedlings" pot
... temperature on gas exchange and mor-phological structure of shoot and root in 1 yr old Scots pine (Pinus sylvestris L.) seedlingsJ. LippuP. PuttonenDepartment of Silviculture, ... University of Helsinki, Unioninkatu 40 B, 0 017 0 Helsinki, FinlandIntroductionLow soil temperature is one of the envi-ronmental factors affecting early growth and survival of forest ... to examinecertain structural and physiological attri-butes of acclimation in Scots pine (Pinus sylvestris L.) seedlings at different soil temperatures.The following structural...
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