**Báo cáo lâm nghiệp: "Canonical correspondence analysis for forest site classification. A case study* " ppt**

Báo cáo lâm nghiệp: "Determination of the pressing parameters of spruce water-resistant plywood" ppt

... (At).Determination of the percentage of PF resin hardeninge aim of studying the character of PF resins in the ﬁeld of UV spectrum was to determine the amount of the insoluble proportion of a heat-hardened ... tolerate Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902.Determination of the pressing parameters of spruce water-resistant plywoodJ. ... increase, the amount of evaporated water and heat losses will decrease, and thus the temperature in the marginal part of the set will increase. e temperature of the central zone of the set...

Báo cáo lâm nghiệp: "Amounts of throughfall and lysimetric water in a sub-mountain beech forest in the Kremnické vrchy Mts" ppt

... by the Scientiﬁc Grant Agency of the Ministry of Education of Slovakia and Slovak Academy of Sciences VEGA, Project No. 2/0045/08.Amounts of throughfall and lysimetric water in a sub-mountain ... 207–211 Water as a substantial component of the living environment is a limiting factor for plants, animals and humans themselves. e amount of (surface and ground) water signiﬁcantly in uences, ... place, commercial aspects of this fact are reach-ing the top of the agenda. e potential reserves of “suitable” water are continually decreasing, mainly due to negative human activities. riftless...

Báo cáo lâm nghiệp: "Rodent-caused damage to forest trees from the viewpoint of forestry practice" potx

... QH72075.Rodent-caused damage to forest trees from the viewpoint of forestry practiceJ. K1,2, K. T2, M. H1, E. B2 1Institute of Vertebrate Biology, Academy of Sciences of the Czech ... management. is corresponds to the comparison of damage caused by rodents and damage due to other harmful factors. Most of the foresters (over 80%) regard the damage by small mammals as less ... according to the foresters. However, this opinion concerning the signiﬁcance of the individual species is in contradic-tion with the information the foresters provided on the distribution of damage...

Báo cáo lâm nghiệp: "Changes in Austrian pine forest floor properties in relation with altitude in mountainous areas" pdf

... 228/29042004.Changes in Austrian pine forest ﬂoor properties in relation with altitude in mountainous areasO. S, H. B. TDepartment of Soil Science and Ecology, Faculty of Forestry, Istanbul ... the initial mass was still remaining after 2 years for pine. Besides V and C (2001) recorded that in boreal forests where cold climatic conditions prevail spruce forests have indigestible ... 2007)02,0004,0006,0008,00010,00012,00014,0001400-1500m1500-1600m1600-1700m>1700m1400-1500m1500-1600m1600-1700m>1700m1400-1500m1500-1600m1600-1700m>1700m Altitude Forest Floor Weight (gr/m2)H L+F TFig. 1. Forest floor weight al-terations in connection with the altitude Forest oor weight (g/m2)1,400–1,500...

Báo cáo lâm nghiệp: "Different technologies of floodplain forest regeneration from the aspect of soil changes" pot

... preparation of soil/ site by ploughing, the concentrations of nitrogen and carbon slightly decrease as a result of mixing the soil of the upper horizon with the central part of the soil profile.– ... guidelines for the realization of the above-mentioned project.CONCLUSION– The natural regeneration of oak in floodplain forests of Spačva protects the soil from dramatic changes in soil in such ... is is conﬁrmed by the results from the Lednice locality (participation of ash). e higher the number of plant species in the stand, the more complex the impact on the soil they exert (P...

Báo cáo lâm nghiệp: " Current state of beech bark necrotic disease in southern Poland" ppt

... the current results of the evaluation of the degree of the beech bark necrotic disease in selected localities in Southern Poland. Be-cause of the absence of analogical investigations in Poland, ... 2/7004/27. Current state of beech bark necrotic disease in Southern PolandA. C, I. MInstitute of Forest Ecology of the Slovak Academy of Sciences, Zvolen, SlovakiaABSTRACT: e degree of the beech bark ... vectors of beech necrotic disease of the tracheomycotic type. Ekológia (Bratislava), 20: 404–413.MIHÁL I., CICÁK A., 2003. State of necrotic disease of beech in the growth phase of natural seeding...

Báo cáo lâm nghiệp: "Cross-calibration functions for soil CO2 eﬄux measurement systems" doc

... wastested at Vielsalm forest campaign for all systems except for the “PP-Or” system. For this purpose, measurements performed with the dif-ferent particular protocols were compared to measurements obtainedwith ... The forth campaignwas performed in the Chaux forest (June 2004) with “Li-62”, “Li-He”, “PP-Ch” and “PP-Or” on 29 PVC collars. The collars were in-serted in the forest soil 2 weeks before measurements. ... P.M., Below-canopy and soil CO2 eﬄux in ponderosa pine forest, Agric. For. Meteorol. 94(1999), 171–188.[13] Le Dantec V., Epron D., Dufrene E., Soil CO2 eﬄux in a beechforest: comparison of...

Báo cáo lâm nghiệp: "Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.)" pptx

... 929c INRA, EDP Sciences, 2006DOI: 10.1051/forest:2006076Original articleModelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.)Patricia Aa*,IsabelC˜b, ... A dominant height growth model and a site index model were developed for rebollo oak (Quercus pyrenaica Willd.) in northwest Spain.Data from 147 stem analysis in 90 permanent plots, where rebollo ... looking for relationships between site index and ecological variables [22,49], the analysis is fa-cilitated with a single dominant height growth pattern.Modelling dominant height growth for Q. pyrenaica...

Báo cáo lâm nghiệp: "Merchantable volume system for pedunculate oak in northwestern Spain" doc

... NC:SAS Institute Inc, 2004.[48] SAS Institute Inc., SAS/ETS9.1.2. User’s Guide, Cary, NC: SASInstitute Inc., 2004.[49] SAS Institute Inc., SAS OnlineDoc9.1.2, Cary, NC: SAS InstituteInc., ... For. Sci. 64 (2007) 511–520 Available online at:c INRA, EDP Sciences, 2007 www.afs-journal.orgDOI: 10.1051/forest:2007028Original articleMerchantable volume system for pedunculate oak in ... merchantable volume of pedunculate oak (Quer cus robur L.) trees in Galicia, northwestern Spain. Accordingly, the purpose of the present study was to obtain equations for predicting merchantable volumes...

Báo cáo lâm nghiệp: "An integrated analysis of 33 Eucalyptus trials linking the onset of competition-induced tree growth suppression with management, physiographic and climatic factors" pptx

... 10.1051/forest:2007036Original articleAn integrated analysis of 33 Eucalyptus trials linking the onset of competition-induced tree growth suppression with management, physiographic and climatic factorsKeith M. ... burning) and the interaction between these two factors were signiﬁcantly related to the timing of tree growth suppression. Regardless of the method of site preparation, the onset of competition-induced ... the eﬀect of site preparation on the rate of seed germina-tion (Fig. 1). At lower altitudes, regardless of whether the sitewas burned or not, the growth of the vegetation was vigorous and competition-induced...

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...

Báo cáo lâm nghiệp: "Can understory vegetation accurately predict site index? A comparative study using floristic and abiotic indices in sessile oak (Quercus petraea Liebl.) stands in northern France" ppt

... A comparative study using floristic and abiotic indices in sessile oak (Quercus petraea Liebl.) stands in northern FranceLaurent BERGÈS a *, Jean-Claude GÉGOUTb, Alain FRANCc a Cemagref, ... combinedthe CA Axes and soil water capacity and was slightly better thanmodels M4 and M1. Model M7 combined abiotic indices (SWC0-150 and Mg/K) and floristic indices (CA Axis 1 and Axis 3) and ... January 2005)Abstract – We investigated the relevance of understory vegetation in indicating site productivity as expressed by sessile oak (Quercus petraea Matt. Liebl.) site index over a large...

Báo cáo lâm nghiệp:"Aboveground biomass relationships for beech (Fagus moesiaca Cz.) trees in Vermio Mountain, Northern Greece, and generalised equations for Fagus sp." ppt

... articleAboveground biomass relationships for beech (Fagus m oesiaca Cz.) trees in Vermio Mountain, Northern Greece, and generalised equations for Fagus sp.Dimitris ZIANIS*, Maurizio MENCUCCINI Institute ... to develop biomass equations for beech (Fagus moesiaca Cz.) trees growing in Vermio Mountain, Northern Greece. Some preliminary results werepresented by Zianis and Mencuccini [35]; in this paper, ... role in sustainable management and in estimating the stocks of carbon (C) that forests contain. In addition to making estimates of C pools in forests, estima-tion of biomass is relevant for studying...

Báo cáo lâm nghiệp: "Stem profile equations for young trembling aspen in northern Ontario" ppt

... by a single profile equation remains unanswered. In our study, we developed a model for young trembling aspen trees, using an approach designed to account for desiredfeatures of stem profile ... 109Ann. For. Sci. 61 (2004) 109115â INRA, EDP Sciences, 2004DOI: 10.1051/forest:2004001Original articleStem profile equations for young trembling aspen in northern OntarioMichael T. TER-MIKAELIANa*, ... variable.Table I. General statistics for variables measured in 6 study sites used in the development of stem profile equations for young trembling aspen. Site locationTimmins(Site 1)Dryden(Site 2)Mann...

Báo cáo lâm nghiệp: "Canonical correspondence analysis for forest site classification. A case study* " ppt

... vegetation-envi-ronment relationships by canonical correspondence analysis. Vegetatio 69, 69-77 Original articleCanonical correspondence analysis for forest site classification. A case study* JC ... λCA,2 ≥ ≥ λCA,k ≥λCA,k + 1 ≥ The same quantities, λCCA,k, may becomputed for CCA and the inequality ... interpreted. A usual way for assessing the quality of CA isto compute, λCA,k, the eigenvalue associated tothe kth ordination axis: λCA,1 ≥ λCA,2...

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