Báo cáo lâm nghiệp: "Stand biometry and leaf area distribution in an old olive grove at Andria, southern Italy" pptx
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: " 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...
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Báo cáo lâm nghiệp: " Crown architecture and leaf habit are associated with intrinsically different light-harvesting efficiencies in Quercus seedlings from contrasting environments" ppt
... 511c INRA, EDP Sciences, 2006DOI: 10.1051/forest:2006033Original article Crown architecture and leaf habit are associated with intrinsically different light-harvesting efficiencies in Quercus seedlings ... 37–39]. In agreement with this, we observed thelowest mean and total leaf areas in seedlings of Mediterraneanoaks (Fig. 3). The reduction in the mean area of individualleaves resulted in a non-linear ... that contrasting morphologies are asso-ciated with contrasting light harvesting efficiencies in species from different provenance environments due to the different selective pressures operating on...
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Báo cáo lâm nghiệp: "Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot
... eachcombination of plot and month. Annual leaf biomass was calculatedby summing monthly leaffall.To quantify the phenological pattern of leaffall and the corre-sponding phenological structure of the ... 2006)Abstract – We monitored leaf biomass, seasonal changes in leaffall, and plot growth for 11 years post-thinning in a secondary deciduous hardwood stand dominated by Betula maximowicziana Regel ... 0.05;Tab. II). Effect of leaf biomass and phenological structure on plot growth 731Figure 5. Yearly changes in the ratio of fallen leaf biomass in October and November to annual fallen leaf biomass...
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Báo cáo lâm nghiệp: "Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation" docx
... 10.1051/forest:2007005Original articleGrowth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management ... biomass allocation and leaf carbon assimilation was investigated in two plantations(1- and 2-year-old) established in previously forested sites of south-eastern Québec. Any vegetation control ... 2006)Abstract – The effect of different vegetation control methods (mowing and cultivation between plantation rows, herbicide application and cover plantsowing) on hybrid poplar (P. maximowiczii...
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Báo cáo lâm nghiệp: "Stand biometry and leaf area distribution in an old olive grove at Andria, southern Italy" pptx
... 10.1051/forest:2007026Original articleStand biometry and leaf area distribution in an old olive grove at Andria, southern ItalyJanˇC´a*,JanGˇ´a, Francesca D Lb,HamlynG.JcaInstitute ... general biometry data for an 80-year -old olive (Olea europea L., cv. Coratina) grove in Andria, southern Italy, and (2) to compare different methods for estimating leaf area distributions. Stand biometry ... cm2)theycontinued growing in length and width in a similar rate. The al-ABFigure 10. Radial pattern of leaf area density (LADrad) and total leaf area per annuli distribution in olive crowns,...
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Báo cáo lâm nghiệp: "Stand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environment" pptx
... 10.1051/forest:2007069Original articleStand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environmentAntonio Garc´ia-Abril,SusanaMartin-Fern´andez,M.AngelesGrande,JoseA.Manzanera*Technical ... diameter and basal area growth of Scots pine in theuneven-aged stand than in the even-aged stand and the plan-tation. Additional research using this kind of approach mightbe warranted, and ... current diameter growth and com-petition was characterised in four stand structures of Scots pine, and an analysis was made of the variables in uencingthis relationship in a mountain area with a continental...
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Báo cáo lâm nghiệp: " Zygotic embryogenesis and empty seed formation in European larch (Larix decidua Mill.)" pptx
... November 2004)Abstract – Zygotic embryo development and its influence on empty seed formation of the European larch (Larix decidua Mill.) was studiedwithin a seed orchard in the Slovak Republic. ... studies of zygotic embryogenesis could contribute to understanding some mechanisms ofunsound seed formation in European larch. 2. MATERIALS AND METHODSFemale strobili of European larch were ... retarded in its growth. June 17. 129Ann. For. Sci. 62 (2005) 129134â INRA, EDP Sciences, 2005DOI: 10.1051/forest:2005004Original article Zygotic embryogenesis and empty seed formation in European...
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Báo cáo lâm nghiệp: "Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, Japan" ppt
... 42].Okinawa Island, especially in its northern part, is mainlycovered by evergreen broad-leaved native forest dominated byCastanopsis sieboldii Hatusima ex Yamazaki & Mashiba(Fagaceae) and ... 245252â INRA, EDP Sciences, 2005DOI: 10.1051 /forest: 2005016Original articlePrecipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, JapanXiaoniu XU a, b,c*, Qin ... precip-itation and runoff at 47 forested sites in the whole of Japan,Iwatsubo et al. [20] found that concentrations of Cl and Na in rainfall and runoff were significantly and negatively correlatedto...
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Báo cáo lâm nghiệp: "Radial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum: a dendroecological assessment of fungal damage" ppt
... radial growth of asymptomatic and symptomatic trees. 294 A. Solla et al.swelling. It has been reported that the disappearance of A. alba from Alpine stands in Italy may be partially caused by ... swellings and brooms (± SD) caused by Melampsorella caryophyllacearum on Abies alba trees located in Irati forest (Navarra, Spain) according to their competitive status (subdominant, codominant, and ... 293Ann. For. Sci. 63 (2006) 293 300â INRA, EDP Sciences, 2006DOI: 10.1051/forest:2006008Original articleRadial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum:...
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Báo cáo lâm nghiệp:"Stand history and its consequences for the present and future dynamic in two silver fir (Abies alba Mill.) stands in the high Pesio Valley (Piedmont, Italy)" potx
... 2003DOI: 10.1051/forest:2003027Original articleStand history and its consequences for the present and future dynamic in two silver fir (Abies alba Mill.) stands in the high Pesio Valley (Piedmont, ... RESULTS3.1. Past land and forest use The forestry history of the high Pesio valley and the land-use of the territory were strongly influenced by the arrival of 370 R. Motta and F. Garbarino[17] Hytteborn ... origin, past forest dynamic and disturbance history. The historicaldevelopment and the successional history of these stands were investigated in two plots of 2000 m2 by means of the following...
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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...
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Báo cáo lâm nghiệp: " Rubisco activity and mitochondrial malate oxidation in pedunculate oak (Quercus robur L) seedlings grown under present and elevated atmospheric CO concentrations 2" pps
... period Original articlePhotosynthesis, Rubisco activity and mitochondrial malate oxidation in pedunculate oak (Quercus robur L) seedlings grown under present and elevated atmospheric ... photosynthetic rate, the Rubisco activity and the mitochondrial oxida-tive and phosphorylative properties, in theleaves of oak (Quercus robur L) seedlings grown in a fertilized soil ... in relation with that found in the sugars and nitrogen concentrations ofthe leaves.MATERIALS AND METHODSPlant material and growth conditionsAcorns of pedunculate oak (Quercus...
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Báo cáo lâm nghiệp: "Hybridization techniques and frost tolerance studies in intraspecific hybrids of Eucalyptus globulus Labil" pdf
... of fluid.The cross-pollinated seed lot was clear-ly the best for the variables: seed produc-tion/capsule, rate of germination and seedling survival, and the self-pollinatedlot ... This trend wasalso found in subsequent growth in thefield. Frost tolerance These results suggest that hardeninghad no effect on frost resistance in thecrosses used (Table ... thecrosses used (Table II). Cold treatmentreduced the increase in height after 4 wk in all families by causing damage to theshoot apices. ...
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Báo cáo lâm nghiệp: "Nitrate utilization and communities nitrogen status in English woodland" ppt
... ofasparagine. Both glutamate and alanineincreased as leaf NR activity increased.Rhodes et aL (1976) found that glutamate and alanine pools increased in Lemnaminor as nitrate ... assimilation of !5N-labelled nitrate in rice seedlings. Plant Cell Physiol. 16, 21-26 Nitrate utilization and nitrogen status in English woodland communities E.C.M. CloughJ. PearsonG. ... occurring in most species in spring, when the budsof deciduous species are beginning tobreak. Amino acid analyses show that glu-tamate and alanine concentrations in- crease...
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