Báo cáo lâm nghiệp: "Influence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana (L ) Moench plantation on an acidified mountain site" potx

Báo cáo lâm nghiệp: "Influence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana (L.) Moench plantation on an acidified mountain site" potx

... by the Nadace pro Jizerské hory Foundation, Project No. 070108.Inﬂuence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana (L. ) Moench plantation on an ... K., 2002. Biomass production and nutrient accumulation in short-rotation grey alder (Alnus incana (L. ) Moench) plantation on abandoned land. Forest Ecology and Management, 161: 169–179.URI ... harsh mountainous environment, on the other hand it is an opportunity to introduce a broadleaved admixture there and thus to diversify the coniferous stands in terms of composition and structure.Some...

Báo cáo lâm nghiệp: "Changes in phenolic acids and stilbenes induced in embryogenic cell cultures of Norway spruce by two fractions of Sirococcus strobilinus mycelia" pot

... in control cells of embryogenic cultures of Norway spruce (C) and in the cells elicited by mycelium protein fraction (PF) and mycelium wall fraction (WF) in the course of 24 h. Means ± Standard ... induction of phenylpro-panoid biosynthesis and accumulation of phenolics were observed in soybean leaves following the ex-posure to chitin and chitosan (K et al. 200 3). An increase in the ... water (pH 5. 2) and autoclaved for 5 min. e concentration of the WF used in the experiment was 30 mg of mycelium powder per 100 ml of liq-uid medium.Extraction and analysis of phenolic acidsPhenolic...

Báo cáo lâm nghiệp: "Relationships between stem size and branch basal diameter variability in Norway spruce (Picea abies (L.) Karsten) from two regions of France" doc

... for one region can not be used inanother one: on the scale of an interregional observation, a sig-nificant portion of branch diameter variance would no longerbe explained by stem size and stand ... al.stem height and diameter. Stand parameters like site index and stand density did not enter the model. But, as the stand param-eters control the tree height and radial growth, the model is stillable ... Eqs. (2. 3) and (2. 4)) , stem height and diameter.Horizontal axis: values of a, p obtained by a fit of equation ( 1) to the data of each tree of the Midi-Pyrénées sample. Vertical axis: a and b valuescomputed...

Báo cáo lâm nghiệp: " Non-indigenous plant species and their ecological range in Central European pine (Pinus sylvestris L.) forests" ppt

... clusters 8 and 13(Cladonio-Pinetum) on dry and acid sandy sites and clusters 15 and 19 (Ledo-Pinetum and Vaccinio uliginosi-Pinetum) on wet and acid sites contain vegetation plots of natural ... which correspond on the one handto very acid and nitrogen poor conditions, e.g. sites of the Cladonio-Pinetum Juraszek 1927 and Leucobryo-PinetumMatuszk. 1962 [19, 37] and on the other hand to very ... forestcommunities. On the contrary, all other communities repre-sented by the investigated pine stands in the NE German low-land are considered more or less anthropogenic (e.g. pineplantations) and/ or...

Báo cáo lâm nghiệp: " Influence of a planting hole application of dolomitic limestone powder and basalt grit on the growth of Carpathian birch (Betula carpatica W. et K.) and soil chemistry in the air-polluted Jizerské hory Mts." pptx

... this variant. On the other hand, in the basalt and control treatments, the foliar Ca concentrations have signiﬁcantly increased since planting.e concentration of Mg in the leaves of limed ... content by raising the soil reaction (pH) and promoting mineralization of SOM, on the other hand this treatment adds Ca cations into soil and thus increases the probability of the formation ... eﬀects of liming on exchangeable K content were described e.g. by P and B (199 6) and G et al. (200 3). On the other hand, the ap-plied basalt grit increased the concentration of...

Báo cáo lâm nghiệp: " Influence of temperatures and precipitation on radial increment of Orlické hory Mts. spruce stands at altitudes over 800 m a.s.l" ppt

... 200 7). e aim of the paper is therefore to examine the eﬀect of the most important climatic factors (tem-perature and precipitation) on the radial increment of selected spruce stands in the ... Youth and Sports of the Czech Republic, the Research Plan of Mendel University of Agriculture and Forestry in Brno, Faculty of Forestry and Wood Technology No. MSM 6215648902, and the Ministry of ... Febru-ary and March of the year in question (Fig. 3). e standard regional tree-ring chronology shows a decrease in the radial increments starting at the beginning of the 1970s and ending at the...

Báo cáo lâm nghiệp: " Influence of stand density, thinning and elevated CO2 on stem wood density of spruce" pot

... and sparse (s) and dense (d) subvariant independent from vertical stem profile; (a) 2002, i.e. after 6 years of the cultivation and (b) 2004, i.e. after 8 years of the cultiva-tion and 2 years ... significant = NS). All data were tested on normality and homoge-Table 1. Position of stem discs in stem vertical profile grown in elevated (E) and ambient (A) concentration of CO2 and sparse (s) ... (56 %) 2.77 (56 %) Ht5 1.45 (40 %) 1.09 (32 %) 1.42 (44 %) 1.51 (46 %) 2.08 (48 %) 2.14 (47 %) 2.43 (43 %) 2.04 (41 %) Ht7 0.87 (24 %) 0.55 (16 %) 0.79 (24 %) 0.90 (28 %) 1.26 (29 %) 1.63 (36 %) 1.51 (27%)...

Báo cáo lâm nghiệp: "Influence of light and competition on crown and shoot morphological parameters of Norway spruce and silver fir saplings" doc

... traits [13], and possibly in allocation pat-terns, but not to morphological ones. 4. CONCLUSIONSResults of the present study confirm the importance of light on growth and on crown, shoot and needle ... lightin the understory and of competition between saplings. An example of the difficulty to understand the effects of sub-tle differences in crown and shoot morphology on the responseto light ... Hj the mean height of competing saplings in quadrant j, and Dj the mean distance between the competing saplings in quadrant j and the sample tree.In all the sapling, growth was assessed by the...

Báo cáo lâm nghiệp: " Influence of environmental conditions on radial patterns of sap flux density of a 70-year Fagus crenata trees in the Naeba Mountains, Japan" ppsx

... gradually thereafter withtransition to winter (Figs. 2A and 2C). The relation between PPFDday and θday and the relationbetween PPFDday and VPDday were examined for each period (the leaf expansion ... (199 6) 983–990.[27] Phillips N., Oren R., A comparison of daily representations of canopy conductance based on two conditional time-averagingmethods and the dependence of daily conductance on ... stand canopy height is 19.1 m, the mean diameter atbreast height (DBH) is 20.9 cm, and the age of trees is 70-year. LAI of the canopy is 5.2, and radiation penetrating the canopy is quite low.The...

Báo cáo lâm nghiệp: "Influence of flooding on growth, nitrogen availability in soil, and nitrate reduction of young oak seedlings (Quercus robur L.)" docx

... flooded and control at p < 0.05 and p < 0.01 respectively; (Mann and Whitneytest).NO2–NO2–Figure 6. Amino acid contents in leaves, cotyledons and roots of floo-ded (F) and control (C) ... extent the effects of anaerobic conditions [2]. The aim of the present study was to determine whether soilnitrate depletion could affect the absorption and reduction of nitrate in roots and leaves ... treatment (C and F) during flooding and 14 days after drainage (day 5 4). Mean ± SE, n = 5, ( *) and (* *) indicatesignificant differences between flooded and control at p < 0.05 and p < 0.01...

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