Báo cáo lâm nghiệp:"Succession from bog pine (Pinus uncinata var. rotundata) to Norway spruce (Picea abies) stands in relation to anthropic" docx
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: " Feeding ecology of pine shoot beetles (Tomicus spp.) in tree crowns of Scots pine (Pinus sylvestris L.) stands under one-year outbreak" pptx
... Results of studies have indicated that some quantitative aspects of beetle feeding in Feeding ecology of pine shoot beetles (Tomicus spp.) in tree crowns of Scots pine (Pinus sylvestris L.) stands ... distribution of losses in growth of trees caused by the feeding of pine shoot beetles Tomicus piniperda and T. minor (Col., Scolytidae) in Scots pine stands growing within range of the in uence of a ... Scots pine crowns. Feeding of beetles in pine shoots in 2002–2006 Scots pine unpeeled timber stored in the amount of 500 m3 became a source of the mass reproduction of pine shoot beetles. ...
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Báo cáo lâm nghiệp: "Specification of the beechwood soil environment based on chosen soil properties, aiming at the Fageta paupera habitat" docx
... vegetation and the rest of phytocoenosis contribut-ing to the formation of the soil environment or on the contrary, the absence or presence of herbs on the soil surface is primarily caused by the ... paupera, on the contrary, the contribution to the knowledge of this ecosystem is in the determina-tion of complicated soil environment, compared with the monotonously and “uncomplicatedly” ... the stability of soil environment or the measure of homogeneity of soil conditions within the entire soil profi le. Results of this study show a high vari-ability of soils in the specifi c beechwood...
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Báo cáo lâm nghiệp: "Department of Forest Establishment and Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic" pot
... Establishment and Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech RepublicABSTRACT: The paper summarizes results from the analyses of Norway spruce ... development and health condition of the root system in Norway spruce af-fected by the decline and yellowing of assimilatory apparatus in forest stands managed by Forest Ad-ministration in Horní ... Youth and Sports of the Czech Republic, Project No. MSM 6215648902. Forest ecosystems in the borderland mountains of the Czech Republic were aff ected by large-scale decline and decay in the...
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Báo cáo lâm nghiệp: "Findings from the application of coal combustion by-products (CCB) for forest reclamation on spoil banks of the North Bohemian Brown Coal Basin" pdf
... stand composition) from each taxon used for the reforestation of the state of reclamation “A” and “B” Fig. 3. Fraxinus excelsior L. in the treatment with the application of CCBFig. 4. Populus ... L. in the treatment with the application of CCBFig. 5. Tilia cordata Mill. and Pinus nigra Arn. in the treatment with the application of CCBFig. 6. Deformations of the root system in the used ... in connection with the soil conditions created by reclamation. Based on the performed leaf analyses the deter-mined differences in element contents between the evaluated reclamation variants...
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Báo cáo lâm nghiệp: "Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) stands in Eastern Prealps of Friuli Venezia Giulia (Italy)" pptx
... 831Ann. For. Sci. 62 (2005) 831836â INRA, EDP Sciences, 2005DOI: 10.1051/forest:2005089Original articleAboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) ... – About 5% of forest area of Friuli Venezia Giulia (Italy) is covered by mixed ash stands. In most cases, these are secondary forestestablished on former pastures and grasslands in the last ... 1997.[11] Le Goff N., Granier A., Ottorini J.M., Peiffer M., Biomass incre-ment and carbon balance of ash (Fraxinus excelsior) trees in anexperimental stand in northeastern France, Ann. Sci. For. 61...
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Báo cáo lâm nghiệp:"Succession from bog pine (Pinus uncinata var. rotundata) to Norway spruce (Picea abies) stands in relation to anthropic" docx
... Succession from bog pine to Norway spruce stands 351Table I. Vegetation tabular of the phytocoenotic relevés and their synusial relevés in the bog pine stand of phytocoenosis No 1 and in the bog pine ... A., Schweingruber F.H., Gobat J M., Standstructure, invasion, and growth dynamics of bog pine (Pinus uncinata var. rotundata) in relation to peat cutting and drainage in the Jura Mountains, Switzerland, ... 25,35]. In Jura bogs, even-aged stands of bog pine developing ondeep and oligotrophic peat reflect mainly drainage and peatcuttings [17]. The pine population of the bog pine- spruce mixed stand in...
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Báo cáo lâm nghiệp:"Post-grazing Scots pine colonization of mid-elevation heathlands: population structure, impact on vegetation composition and diversity" pdf
... 10.1051/forest:2003065Original articlePost-grazing Scots pine colonization of mid-elevation heathlands: population structure, impact on vegetation composition and diversityThomas CURTa*, Bernard PRÉVOSTOa, ... heathlands and grasslands, pure pine stands, mixed (i.e. pine- beech) stands, and pure beech stands. Forest colonization and heathland vegetation 723REFERENCES[1] Andrés C., Ojeda F., Effects of ... the vegetation of open heathlands and that of early colonization stages (i.e. pure pine stands). Conversely, onlyabout one-third of species from the initial heathlands persistsin mixed stands....
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Báo cáo lâm nghiệp: "Spatio-temporal pattern of bog pine (Pinus uncinata var. rotundata) at the interface with the Norway spruce (Picea abies) belt on the edge of a raised bog in the Jura Mountains, Switzerland" doc
... (Pinus uncinata var. rotundata) at the interface with the Norway spruce (Picea abies) belt on the edge of a raised bog in the Jura Mountains, SwitzerlandFranỗois FRELẫCHOUX a, b,c*, Alexandre ... Gobat J M., Standstructure, invasion and growth dynamics of bog pine (Pinus uncinata var. rotundata) in relation to peat cutting and drainage in the Jura Mountains, Switzerland, Can. J. For. Res. ... Buttler A. , Gillet F., Gobat J M., Succession from bog pine (Pinus uncinata var. rotundata) to Norway spruce (Picea abies) stands in relation to anthropic factors in Les Saignolis bog, Jura Mountains,...
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Báo cáo lâm nghiệp: "A dendroclimatic analysis of Pinus densiflora from Mt. Chiri in southern Korea" ppt
... Original articleA dendroclimatic analysis of Pinus densiflora from Mt. Chiri in southern KoreaWon-Kyu Park*Ram R. Yadav*Department of Forest Products, College of Agriculture, ... (1801-1996) tree-ring chro-nology of Korean red pine was developed from the Chiri mountain range in south-ern Korea. Cross-dating of samplesrevealed that missing rings were rare; ... reconnaissances in southern Korea [25, 30] also indicated thepossibility of finding multi-century oldtrees in some of the high mountain areas.Though this area is very important from a...
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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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Báo cáo lâm nghiệp: "Studies on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) needle cuticles" potx
... plant cuticular membranes. An overview. Studies on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) needle cuticlesS. HuttunenM. TurunenJ. ReinikainenDepartment ... ResultsThe young needles of Norway spruce (Picea abies L. Karst.) develop in earlyJune under northern Finnish conditions,the Scots pine (Pinus sylvestris L.) needles about ... et ai. (1986) and Heis-ka and Huttunen (1987) studied enzymati-cally isolated conifer needle cuticles.Materials and Methods Scots pine and Norway spruce needle cuticleswere...
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Báo cáo lâm nghiệp: "Effects of sulfuric acid and nitrogen deposition on mineral nutrition of Picea abies (L.) Karst" ppt
... nutrient status and vitality of Pinussylvestris (L.) Vitality, nutrient supply of P. sylvestris, chemicalconstitution of the soil solution and NH4concentrations of the air ... preparation) sup-port this hypothesis. In addition, NH4/NH3 deposition may have toxic effects on theplant tissue (Ewert, 1978).Conclusion Acid deposition based on high ... Sulfuric acid raintreatment of Picea abies (L.) (Karst.): effects on nutrient solution and throughfall chemistry aswell as on spruce nutrition. Z. Pflanzenemaehr.Bodenkd....
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Báo cáo lâm nghiệp: "Experimental study of pine ectomycorrhizae: ectomycorrhizal organization after girdling of the hypocoty" potx
... McGraw-Hill,London, pp. 383-417 7 Experimental study of pine ectomycorrhizae: ectomycorrhizal organization after girdling of the hypocotylJ. LeiJ. DexheimerLaboratoire de Biologie ... leadingmorphologically in the pine to the swelling of the stem above the ablation (Fig. 1 ) andin the fungal partner to the more or lesscomplete disappearance of the intramatri-cal ... and 3). The swelling of the stem is characteris-tic of plants that have undergone girdling. The products of photosynthesis in the aerial part are blocked by girdling and...
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Báo cáo lâm nghiệp: "Succession of or stand age" pptx
... Succession of mycorrhizae: a matter of tree age or stand age?D. BlasiusF. OberwinklerInstitut für Botanik, Spezielle BotaniklMykologie, Universität TObing6,n Auf der Morgenstelle ... a considerable amount of pub-lished evidence to support the view that asuccession of mycorrhizae occurs duringthe development of first-rotation forestplantations (Dighton ... question.Materials and MethodsSamples of mycorrhizae were taken from 2stands of Picea abies (L.) Karst. in the BlackForest near Frnudenstadt. Stand and site de-scriptions have...
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