Báo cáo lâm nghiệp: "Evaluation of a semi-empirical model for predicting ﬁne root biomass in compositionally complex woodland vegetation" ppsx

... part of a larger projectthat examined patterns of below- and above-ground biomass in Eu-calyptus populnea woodland ecosystems along a rainfall gradient in northeast Australia [25]. Here, data ... 247c INRA, EDP Sciences, 2007DOI: 10.1051/forest:2007002Original articleEvaluation of a semi-empirical model for predicting ﬁne root biomass in compositionally complex woodland vegetationAyalsew ... 2006)Abstract – We used measures of plant size, distribution and root core data to evaluate capability of the model of Ammer and Wagner [2] for spatiallyexplicit prediction of ﬁne root biomass (FRB) in...

Báo cáo lâm nghiệp: "Evaluation through a simulation model of nutrient exports in fast-growing southern European pine stands in relation to thinning intensity and harvesting operations" doc

... study was to calculate the accumu-lation and the export of nutrients over time in Pinus pinaster(maritime pine) and Pinus radiata (radiata pine) stands under a range of silvicultural alternatives, ... contents Biomass equations for radiata pine and maritime pine recorded byBalboa et al. [4] were used in our simulations. To ﬁt these weighted biomass equations, a total of 54 radiata pine and 125 maritime ... to soil as logging residues due to thinnings and clear-cutting as a function of thinning intensityand site quality for radiata pine stands, in the case of conventional harvesting (no debarked...

Báo cáo lâm nghiệp: "Evaluation of new silvicultural alternatives for Scots pine stands in northern Spain" pot

... some authors [31]claim that the interaction of the above factors can lead to var-ying effects, the truth is that an increase in retention after finalfelling causes a decrease in the financial ... independently.Compatibility between G and dg models was checked, and in the endthe basal area equation was maintained in the model, while the meanquadratic diameter equation was discarded. The model s statisticalattributes ... to assign thesealternatives to the northern forests of the Iberian System,including a spatial analysis. This analysis is indispensable for handling certain outputs. For example, Finn et al....

Báo cáo lâm nghiệp: "Application of digital elevation model for mapping vegetation tiers" pdf

... Querci-fageta aceris, Querci-fageta tiliae, in the 4th ve-getation tier Fageta typica, Fageta aceris and in the 5th ve- getation tier Abieti-fageta typica and Abieti-fageta ace- ris inferiora. ... variables (eleva-tion and potential global radiation) was found to be satisfactory, explaining 84% of data variability. e eﬀect of both variables is linear (see Fig. 6 for eleva-tion) in ... values5.04.54.03.53.02.52.0corded in forest stands with the near natural tree species composition (mainly with Quercus petraea, Fagus sylvatica, Carpinus betulus and Abies alba) as well as in forest stands hardly influenced...

Báo cáo hóa học: " Development of a mathematical model for predicting electrically elicited quadriceps femoris muscle forces during isovelocity knee joint motion" potx

... University of Delaware, Newark, DE, USA and 2Department of Mechanical and Aeronautical Engineering, Civil and Environmental Engineering, and Land, Air, and Water Resources, University of California, ... characteris-tics of the parameterizing and testing trains. Force data in response to parameterizing trains Force data in response to parameterizing trains 3 subjects Model ... relationships between various model Linear relationship between model parameters Force data in response to parameterizing trains Model Development Force data in response to testing trains....

Báo cáo lâm nghiệp: "Results of a phenological study of the tree layer of a mixed stand in the region of the Drahanská vrchovina Upland" ppt

... 2004050100150200250300350400450500550600650700Norway spruce European beech European larch(°C)budbreak 10%beginning of foliage formation 10%beginning of foliage formation 50%beginning of foliage formation 100%fully developed leaf area ... 2005050100150200250300350400450500550600650700Norway spruce European beech European larch(°C)budbreak 10%beginning of foliage formation 10%beginning of foliage formation 50%beginning of foliage formation 100%fully developed leaf area ... duration of the stage of budbreak and the beginning of foliage became evident in all monitored species most mark-edly. Because of a rapid increase in temperatures in May 2006, the duration of...

Báo cáo lâm nghiệp: "Evaluation of the growth and health status of selected clone mixtures in comparison with ordinary planting stock" docx

... 2nd generationResearch plots were evaluated in the intervals of several years. So data acquired in plantations of dif-ferent age growing in diﬀerent natural conditions are available. e objective ... rašelina RP indicates high statistical signiﬁcance of the in uence of provenance of particular variants (clones) (Table 2).Dispositions to the growth rate of particular clones were maintained ... (defoliation was not higher than 10% in any variant and there occurred hardly any changes in the coloration of assimilatory organs 2 years after outplanting) and growth dynam-ics of rooted cuttings...

Báo cáo lâm nghiệp: "Evaluation of squared timber and log products in the Hyrcanian Forests of Iran" doc

... northern areas of Iran are known as Hyrcanian Forests and are distributed across three provinces, namely Gilan, Maznadarn and Golestan. These provinces are situated in the north of Iran near the Caspian ... forests form rather a narrow green belt bordering the northern part of the Alborz Mountains and ex-tend from Astara in the west of Gilan Province to Giledarreh in the east of Golestan province, and ... mechanized harvesting system; squared timber e Hyrcanian Forests of Iran are natural broad-leaved forests located in the north of Iran near the Caspian Sea (Fig. 1).  ey have uneven topography and...

Báo cáo lâm nghiệp: "Evaluation of changes in the landscape management and its influence on animal migration in the vicinity of the D1 motorway in Central Bohemia" ppsx

... threat has been the main reason for initiating activity concerning this issue. A report known as COST 341 was established that presents informa-Evaluation of changes in the landscape management ... area of interest. ese still remained, however, the largest in size. e area of polygons for commercial zone, which already accounted for 8.53% of the area, increased. e area of forest complex ... application, the project in- volves mapping both the landscape permeability re-garding migration and landscape structure changes in an area in uenced by a linear construction in the form of a...

Báo cáo lâm nghiệp: "Evaluation of physiological and health state of Norway spruce plants with diﬀerent growth rate at juvenile stage after outplanting at" pdf

... stem and branchesType of damage Description of damage IndexStem damageno damagesubstitute shootsstem breakages012Branch damageno damagemoderate damage (small injuries, breakages of weak ... (ETR) at increasing radiation intensity showed a similar trend among the variants in samples in fresh condition and dam-age caused by freezing test increasing from “small” to “large” variants. ... in forest outplantings.Damage to branches and stem was evaluated ac-cording to severity. Damage indexes are shown in Table 2 in the chapter Material and Methods. e frequency of stem damage...

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