Báo cáo khoa học: "Growth and fructification of a Norway spruce (Picea abies L Karst) forest ecosystem under changed nutrient and water input" doc

Báo cáo khoa học: "Growth and fructification of a Norway spruce (Picea abies L. Karst) forest ecosystem under changed nutrient and water input" doc

... articleGrowth and fructification of a Norway spruce (Picea abies L. Karst) forest ecosystem under changed nutrient and water inputAchim Dohrenbusch a* , Stefan Jaehne a , Michael Bredemeierb and Norbert ... R.F. Nutrient balance and P, K, Ca, Mg, S and B accumulation in a Norway spruce stand following ammonium sulphate application, fertigation, ir-rigation, drough and N-free fertilisation, Plant ... “pre-industrial” through fall and to extended summer droughts with intensive rewetting are investigated in two parallel roof experiments and evaluated against a roof control and an ambient control plot. After...

Báo cáo lâm nghiệp: "Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions of the sit" ppt

... (weakened) older stands.e analyses indicate that the causes of the decline are as follows: planting of Norway spruce outside the optimum of its ecovalence, increased global radia-tion, weather ... this parameter in older trees (see the max. angle between HKK). All the analyzed stands exhibi-ted an intolerably high occurrence of tangles – always smallest in healthy trees and showing a 100% ... Agriculture and Forestry in Brno, Brno, Czech RepublicABSTRACT: e Bohemian-Moravian Upland shows a large-scale decline and dieback of Norway spruce up to the forest altitudinal vegetation...

Báo cáo khoa học: "Water relations of adult Norway spruce (Picea abies (L) Karst) under soil drought in the Vosges mountains: water potential, stomatal conductance and transpiration" ppsx

... tothe developed leaf area of the stand, asstated in equation [5].Original article Water relations of adult Norway spruce (Picea abies (L) Karst) under soil droughtin ... com-parison of mountain- and plain-growing Nor-way spruces was carried out); 2) to anal-yse and model the seasonal variation of canopy conductance under water constraint; and ... wascalculated as 75% of global radiation (unpub-lished data, from a previous experiment in a spruce stand near Nancy, France). Rate of stor-age of heat in biomass was calculated...

Báo cáo khoa học: "Site-specific height curves for white spruce (Picea glauca [Moench] Voss) stands based on stem analysis and site classification" potx

... models ispresently limited by the resolution (time and spatial scale) and the nature of availableclimatic and edaphic data (Nautiyal and Cuoto, 1984; Rayner and Turner, 1990).Consequently, ... Traditionally,these models are based on ’historical bioas-says’ and, therefore, are empirical models.Empirical models have been used over thepast several decades, and are ... and L as delineated and labelled by Wang(1993). Each site group represents a group of sites with similar soil moisture, aeration and nutri-ent conditions as well as...

Báo cáo lâm nghiệp: "Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Śląski and Beskid Żywiecki Mts. from the aspect of their nutrition status" pptx

... of soil (Tables 2 and 3).e analyzed soils are shallow at high altitudes and moderately deep at lower altitudes, mostly medium-skeletal in their organic-mineral layers, and strongly or very ... while in two-years-old spruce needles the ratios S:Ca and N:Ca are disturbed in all the stand groups under analysis and in most cases also K:Ca. In the ratios S:Ca and S:Mg in one-year-old spruce ... 2004; M et al. 2005). is fact may be proved by a low level of alkaline cations and a small degree of saturation of the sorptive complex with them (Table 2), smaller than the values quoted...

Báo cáo lâm nghiệp: "Water relations of adult Norway spruce (Picea abies (L) Karst) under soil drought in the Vosges mountains: whole-tree hydraulic conductance, xylem embolism and water loss regulation " ppsx

... Disc Farad Soc 3, 146-153Original article Water relations of adult Norway spruce (Picea abies (L) Karst) under soil droughtin the Vosges mountains: whole-tree hydraulicconductance, ... stomatal adjust-ment to water transport capacity. Plant Cell Environ13, 383-388Meinzer FC, Grantz DA (1991) Coordination of stom-atal, hydraulic, and canopy boundary layer ... and xylem cavitationin Betula occidentalis. Plant Cell Environ 16, 279-287Sperry JS, Saliendra NZ (1994) Intra- and inter-plantvariation in xylem cavitation in Betula...

Báo cáo lâm nghiệp: "Current possibilities of using Norway spruce (Picea abies [L.] Karst.) in forest regeneration in the air-polluted region of the northeastern Krušné hory Mts" doc

... Bohemian-Moravian UplandPlant condition Small-scale clear-felled areasLarge-scale clear-felled areas Underplanting of Norway spruce Underplanting of white birchAll plantsPlants without damage ... terminal shoots All plantsPlants without damage to terminal shoots All plantsPlants without damage to terminal shoots All plantsPlants without damage to terminal shoots e number of plots ... Exponential (Inspection Bohemian-Moravian Upland)Linear (Regeneration of small-scale clearings)Linear (Regeneration of large-scale clearings) Linear (Inspection Bohemian-Moravian Upland)Fig....

Báo cáo khoa học: Dissociation/association properties of a dodecameric cyclomaltodextrinase Effects of pH and salt concentration on the oligomeric state pot

... equilibrium and velocity analyticalultracentrifugationSedimentation equilibrium analytical ultracentrifugationwas performed using a Beckman Optima XL -A analyticalultracentrifuge (Beckman Coulter ... could form a dodecamer and thatFig. 1. Apparent molecular mass of CDase I-5 at various pH valuesdetermined by analytical ultracentrifugation analysis.Dynamics of a CDase in the oligomeric state ... velocity analytical ultracentrifugation wasperformed using a Beckman Optima XL -A analytical ultra-centrifuge (Beckman Coulter Inc., Fullerton, CA, USA)equipped with a four-hole rotor with standard...

Báo cáo khoa học: On the mechanism of a-amylase Acarbose and cyclodextrin inhibition of barley amylase isozymes pdf

... b-strand 3 and a- helix 3 of the barrel, and a C-terminal, domain C, folded as an antiparallel b-sheet[17–23]. Acarbose is a pseudotetrasaccharide inhibitor of a- amylase, that acts like a transition-state ... a- amylases.Materials and methodsMaterialsBarley a- amylases, AMY1 and AMY2, were puriﬁed fromgreen and kilned malt, respectively, according to Svenssonet al. [33] and Ajandouz et al.[9].PuriﬁedAMY 1and AMY2 ... thousand-foldmore active toward amylose than toward maltodextrin and a million-fold more active than toward maltoheptaose.AMY2 was slightly more active than AMY1. AMY1 and AMY2 were inhibited by acarbose. a- CD...

Báo cáo khoa học: Cleavage site analysis of a serralysin-like protease, PrtA, from an insect pathogen Photorhabdus luminescens and development of a highly sensitive and speciﬁc substrate pdf

... (Table 2), Clostridium collagenase (clostridialcollagenase family, M31), Php-C (thermolysin family,M4) and oligopeptidase A (OpdA; thimet oligopepti-dase family, M3), as well as trypsin and ... hydrolysis reactions as an internalstandard, because it was not hydrolysed by PrtA. Peakareas were normalized with the internal standard, and thedegree of cleavage was calculated from the ... Experimental procedures.)Fig. 1. Cleavage site analysis of PrtA on oxidized insulin chain A. (A) The position of cleavage sites (vertical arrows, a1 a3 ) and clea-vage fragments (horizontal double arrows,...

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