Báo cáo lâm nghiệp: "Tree density and site quality inﬂuence on Pinus halepensis Mill. reproductive characteristics after large ﬁres" pdf

Báo cáo lâm nghiệp: "Neuroptera, Raphidioptera and Mecoptera assemblages inhabiting young spruce (Picea abies) forests: dominance structure and seasonal activity patterns" docx

... (Special Issue): 74–81Neuroptera, Raphidioptera and Mecoptera assemblages inhabiting young spruce (Picea abies) forests: dominance structure and seasonal activity patternsĽ. V1, J. ... Neuroptera, Raphidioptera a Mecoptera mladých smrkových (Picea abies) lesů: struktura dominance a sezonní aktivitaABSTRAKT: Síťokřídlý hmyz (Neuroptera, Raphidioptera) a srpice (Mecoptera) šesti ... H and V (2002) in spruce forests of Paskovský les and Kabátice in 1998. e second peak was re-Table 2. List of recorded Raphidioptera species and their dominance distribution (%) Raphidioptera Kyjovice...

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...

Báo cáo lâm nghiệp: "Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the Czech Republic and southern Poland – Short Communication" pdf

... Poland. Supported by the Ministry of Agriculture of the Czech Republic, Project No. 0002070201.Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the ... in the eastern part of the Czech Republic and in southern Poland, where the population density of Ips duplicatus has been increased for a long time on Norway spruce. However, all cases concerned ... densities. In the study area in the Czech Republic, spruces are declining because of drought and honey fungus attacks and 5 0–6 0% (n = 635) of them are consequently infested by I. duplicatus during...

Báo cáo lâm nghiệp: " Humus conditions and stand characteristics of artificially established young stands in the process of the transformation of spruce monocultures" pdf

... moder in the unmixed spruce stand and mixed stands, mull-moder in the unmixed beech stand (according to N et al. 2001). The high accumulation of humus in H horizon in the mixed stand of ... floor occurs in the stand of larch with beech (52.6 t/ha) and the statistically lowest one in the unmixed beech stand (22.0 t/ha). e mixed stand of spruce with beech and the spruce stand repre-sent ... in all stands was noted. Statistically signiﬁcant diﬀerences were not detected in the content of DOC in forest ﬂoor and soil between spruce and beech stands and mixed stands under given conditions...

Báo cáo lâm nghiệp: "Occurrence, biology and harmfulness of Galerucella lineola (F.) (Coleoptera, Chrysomelidae)" pps

... Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902.Occurrence, biology and harmfulness of Galerucella lineola (F.) (Coleoptera, Chrysomelidae) ... or at the end of April and at the beginning of May (H, Fig. 1. A female of the alder biological form of Galerucella lineola Fig. 2. e body length of males and females of the alder ... development of the alder biological form of G. lineola on leaves of A. glutinosa and A. incana. Polnička, 1995 (light). e diagram of occurrence and development of the willow biological form of G. lineola...

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

... Nor-way spruce (Picea abies [L.] Karst.) underplantings in the Hrubý Jeseník Mts. In the area concerned 19 research plots were established, representing the ridge sites of the 8th FAZ of acid ... growth and development of Norway spruce plantings in the ridge part of the Hrubý Jeseník Mts.Keywords: Norway spruce; nutrient deficiency symptoms; stand nutrition; soil environment Supported by the ... nutrition of stands.R ef er en ce sB J., MŁ S. (2008): Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Ś laśki and beskid Žywiecki Mts. from the aspect of their...

Báo cáo lâm nghiệp: "The persistence and function of living roots on lodgepole pine snags and stumps grafted to living trees." pdf

... longevity and location of live roots on lodgepole pine snags and stumps grafted to living trees and to determine whether these live roots aﬀect the diameter growth of living trees.2. MATERIALS AND ... 10.1051/forest:2006085Original articleThe persistence and function of living roots on lodgepole pine snags and stumps grafted to living treesErin C. F, Victor J. L*, Simon M. LăCentre for Enhanced ... selected to study the longevity and location of live roots of snags that were grafted to living trees, to determine the impact of these live residual roots on the diameter growth of the living...

Báo cáo lâm nghiệp: "Tree density and site quality inﬂuence on Pinus halepensis Mill. reproductive characteristics after large ﬁres" pdf

... high quality but low density sites (such as TAR). The lowest tree density and low Aleppo pine reproduction after large ﬁres 651Figure 2. Cone production (X axis: site; Y axis: number of conesper ... tree density and three for site quality distributedalong Eastern Spain.2.3. Measurement of reproductive characteristics Fertilized cones were counted and classiﬁed based on appareance and age ... 290 16.5 Semiaridwithin the sites. Each site represented a diﬀerent stand tree density and climate conditions (Tab. I). They were located randomly withinthe sites and were circular in design...

Báo cáo lâm nghiệp: " Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)" ppsx

... 449453â INRA, EDP Sciences, 2005DOI: 10.1051/forest:2005041Original article Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)Klaus v. SCHWARTZENBERG*, Heinz ... increase the cytokinin content in the shoot of Norway spruce. cytokinin / forest decline / nutrient deficiency / Norway spruce / Picea abies Résumé – Stress nutritionnel et teneur en cytokinines ... artificialincrease of auxin on the root level can induce changes of the cytokinin content in the shoot. In discussing the elevated content of cytokinin ribosides in shoots of seedlings grown on STRESS- AlCl3...

Báo cáo lâm nghiệp: "Nutrient status and field performance of tree seedlings planted in Mediterranean degraded areas" doc

... 10.1051/forest:2006003Original articleNutrient status and field performance of tree seedlings planted in Mediterranean degraded areasAlejandro VALDECANTOSa,b*, Jordi CORTINAc, V. Ramón VALLEJOaa Centro ... (SL) and root collar diameter (RCD) of seedlings of Pinus halepensis and Quercus ilex 2.5 years after out-planting in eight degraded woodland sites on soils derived from limestone (L) and marl ... selected Pinus halepensis and Quercus ilex seedlings perplot. The number of Q. ilex seedlings sampled in Yátova 2 (on marl)was 5, and it was not possible to sample Q. ilex seedlings in the Buñolsite...

Báo cáo lâm nghiệp:"Growth, damage and net nitrogen uptake in Picea abies (L.) Karst. seedlings, effects of site preparation and fertilisation" pptx

... 10.1051/forest:2003058Original articleGrowth, damage and net nitrogen uptake in Picea abies (L.) Karst. seedlings, effects of site preparation and fertilisationFredrik NORDBORG*, Urban NILSSONSwedish University of ... followinghypotheses: (i) site preparation increases seedling initialgrowth and reduces damage during the first year after planting in planted Norway spruce (Picea abies (L.) Karst.) seedlings, (ii) ... and high seedling growth with a low risk of nitrogen leaching. In this study, effects on seedling survival, growth and net nitrogen uptake were evaluated in three site preparations and two fertiliser...

Báo cáo lâm nghiệp: "Modelling juvenile-mature wood transition in Scots pine (Pinus sylvestris L.) using nonlinear mixed-effects models" ppsx

... (2004) 831841â INRA, EDP Sciences, 2005DOI: 10.1051/forest:2004084Original articleModelling juvenile-mature wood transition in Scots pine (Pinus sylvestris L.) using nonlinear mixed-effects ... Wachstumsbedingungen. Dissertation an der Forstwiss.Fakultät der Universität Freiburg, 1992, 221 p. [33] Sauter U.H., Mutz R., Munro B.D., Determining juvenile-mature wood transition in Scots pine using ... regression model is fitted with the transition point as vertical line andthe simulated individual values as dots (f–j). Modelling juvenile-mature wood transition in Scots pine 833stands are from the...

Báo cáo lâm nghiệp: "Geographic variation and bud dormancy in seedlings (Fagus sylvatica L)" potx

... sprouting in F sylvatica seedlings in spring alsodepended upon prior chilling received. Fa-lusi and Calamassi (1990), also workingwith seedlings, found that chilling was in fact ... LD alsoplayed a role in removing dormancy and/ orinitiating growth.The findings of experiment 3 supportedthis hypothesis. In the Casentino seedlings a LD reduced the thermal ... chilling was in fact the predominant factor determiningrapid release from bud dormancy and bringing about the internal changes in the seedlings that lead to an acrotonal...

Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe" ppt

... 99.6 Mg ha-1; San Original articleBiomass, litterfall and nutrient content in Castanea sativa coppice stands of southern EuropeS Leonardi1I Santa ReginaM Rapp4HA Gallego3M ... VII.This indicates again that there was muchhigher calcium content in the litterfall in theEtna Castanea sativa stands as comparedto the San Martin stand in Spain. For ... Mediterranean.Biomass of individual trees, abovegroundstand biomass, their yearly increments and nutrient contents were studied in coppices of Spain, Italy and France. Litterfall and nu-trient...

Báo cáo lâm nghiệp: "Water movement and its resistance in young trees of Cryptomeria japonica" pot

... Water movement and its resistance in young trees of Cryptomeria japonicaH. YahataLaboratory of Silviculture, Department of Forestry, Faculty of Agriculture, Kyushu ... University,Fukuoka, JapanIntroductionInformation about water flow resistance isessential to understanding and simulatingwater movement in trees (Yahata, 1987).There are a number of papers ... in the stem in place of Q and the gradients of water potential betweensoil and leaves, .1"’s-1> or between rootstock and leaves, dyrr-,, the resistance of...

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