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Báo cáo lâm nghiệp: "Production potential and ecological stability of mixed forest stands in uplands – VI A beech/larch stand on a mesotrophic site of the Křtiny Training Forest Enterprise" pot

Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "Production potential and ecological stability of mixed forest stands in uplands VI. A beech/larch stand on a mesotrophic site of the Křtiny Training Forest Enterprise" pot

... dominant stand and the volume of dead trees is not included in the calculation. Stand density was calcu-lated according to standard mensurational practice from the ratio of actual basal area ... is the 6th report on the production potential and stability of mixed forest stands in uplands. A mixed beech/larch stand that was established by natural regeneration in 1934 to 1942 is assessed. ... Youth and Sports of the Czech Republic, Project No. MSM 6215648902.Production potential and ecological stability of mixed forest stands in uplands VI. A beech/larch stand on a mesotrophic site...
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Báo cáo lâm nghiệp: "Nutrient status and field performance of tree seedlings planted in Mediterranean degraded areas" doc

... Forata and Benissa). In 199 4–1 995, rainfall was around60% of the historical annual average, whereas in 1993, rainfall wasclose to historical values in six sites (Ayora, Buñol, Martés M and ... Ecosistemas Agroforestales, EPS Gand a, Universidad Politécnica de Valencia, Ctra Nazaret-Oliva s/n, 46730 Gand a, Valencia, Spainc Departament d’Ecologia, Universitat d’Alacant, Ap 99, 03080 Alacant, ... Bladé C., Valdecantos A. , Seva J.P., Fuentes D.,Alloza J .A. , Vilagrosa A. , Bautista S., Cortina J., Vallejo R., Pines and oaks in the restoration of Mediterranean landscapes of Spain:New perspectives...
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Báo cáo lâm nghiệp: " Production potential of Douglas fir at mesotrophic sites of Křtiny Training Forest Enterprise" ppsx

... evaluated stands are given in Tables 5 to 10. Remarkable production parameters of Douglas Table 4. Characteristics of experimental stands Stand Stand part Age as on 1. 1. 2007 Management set of ... class, again three stands were assessed in MSS 25 and six stands in MSS 45. e oldest group (over 101 years) consists of the set of four stands in MSS 25 and of eight stands in MSS 45. Stand 168B14, ... groups of stands. As already mentioned, there are 660 parts of stands in the TFE with the Douglas fir reduced area amount-ing to 131.24 ha. In the present study, the oldest mature stands in the...
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Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx

... values of base saturation fall below 5% in 25% of the evaluated plots.  ese values can already be considered as extreme and the applica-tion of remediation ameliorative actions (fertiliza-tion, ... in or-ganomineral horizons there is a moderate increase to the values of 6–2 0% compared to humifi cation horizons (Table 2). From the aspect of sorption sat-uration the soils at the evaluated ... in- ternational classifi cation. Evaluation of underplanting damage e degree of damage to underplantings was evaluated on each research plot, based on the fre-quency of occurrence of visual symptoms...
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Báo cáo lâm nghiệp: "Canopy structure and spatial heterogeneity of understory light in an abandoned Holm oak woodland" pps

... and standard deviation (SD) of canopy height, number of stems and basal area for the 900 1-m2sampling points of the studyplot, and mean and standard deviation of the height, projected area,thickness ... undertraditional management and high when woodlands are abandoned(results from 40 0–2 700 sampling plots in the Spanish provinces of Madrid, Cádiz, Málaga, Huelva, Almer a, Córdoba, Jaén, Sevilla and ... recreational activities arecurrently taking place in the area together with marginal live-stock grazing, an increasingly common situation in the ruralareas of Southern Europe. The first objective of...
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Báo cáo lâm nghiệp: "Composition, distribution and supposed origin of mineral inclusions in sessile oak wood consequences for microdensitometrical analysis" ppsx

... heartwood,Janin and Clément [10] raised the concept of a hinge-ring thatacts as a barrier between sapwood and heartwood rings: on the sapwood side and especially near the cambial zone, resorption of the ... contained measurable amounts of mineral inclusions which were quantified using image analysis. Based on the variations of mineral content observed between trees and within and between annual rings ... Dif-ferences in soil nutrient factors appeared to play a majorrole in explaining the autecology of Q. petraea in northernFrance [1]. On the other hand, enhanced accumulation of min-erals might also have...
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Báo cáo lâm nghiệp: "ce nucleation and frost resistance of Pinus canariensis seedlings bearing needles in three different developmental states" pptx

... similarity in frost resistance of expanding current-yearneedles of the Canary Island pine and subalpine evergreentimberline conifers of continental Europe suggest that frosthardening during ... the onset of frost damage. In Figure 4. Recuperation capacity of P. canariensis seedlings after a frost treatment of (a) only the above ground parts and (b) of the wholeseedlings including roots. ... frostresistant than those of continental timberline conifers such ascomparatively P. cembra which remained undamaged at tem-peratures as low as –1 2◦C in the same season (Taschler D.,pers. comm.).The...
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Báo cáo lâm nghiệp: "Modelling height and diameter growth of dominant cork oak trees in Spain" ppt

... cork oak areas in Spain (Fig. 1): the Natural Park of “Los Alcornocales” in the South and Catalonia in the North-East. The characteristics of both areas aresummarized in Table I. In each of these ... Catalonia, pos-sibly because of the small number of trees sampled in thisquality class. The analysis of the variability of the modelling efficiencyagainst age and against prediction interval ... outthis research are two of the main cork producing areas in Spain and are representative of the Spanish cork oak forests.2. MATERIALS AND METHODS2.1. DataStem analysis data were obtained from...
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Báo cáo lâm nghiệp: "Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates" pdf

... linked to a far larger decrease of the standing volume of trees (and thus carbon) in the forests and of soil carbon because of the harvesting, an effect that iscompensated only very slowly by the ... of the forest. Understanding the linkage between forest carbon pools and flows and the building carbon pools and flows in detail is anurgent research need.Given the relative importance of the ... Long-living wood products can contribute to the mitigation of climate change in many ways. On the one hand, they act as a carbonpool during their service life, as they withdraw CO2 from its natural...
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Báo cáo lâm nghiệp: "Light acclimation and photosynthetic response of beech (Fagus sylvatica L.) saplings under artificial shading or natural Mediterranean conditions" docx

... (plots and linear regression) and southern France (mean, standard deviation and confidence interval of the mean), and for the saplings of natural regeneration (plots and linear regression) at 5 ... France(plots and linear regression) and in southern France (mean, standarddeviation and confidence interval of the mean), and for the naturalregeneration (plots and linear regression). Only ... (plots and linear regression) and southern France (mean, standard deviation and confidence inter-val of the mean), and for the natural regeneration (plots and linearregression). Only the 3rd...
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