Báo cáo lâm nghiệp: "Variability of spruce (Picea abies [L ] Karst ) compression strength with present reaction wood" pdf

... the know- ledge of the properties of Norway spruce (Picea abies [L. ] Karst. ) wood with the presence of reac-tion wood.J. FOR. SCI., 53, 2007 ( 3): 129–137 133e influence of the radius on ... the Ministry of Education, Youth and Sports of the Czech Republic, Project No. 6215648902.Variability in density of spruce (Picea abies [L. ] Karst. ) wood with the presence of reaction woodV. ... Effect of the position in a stem on the length of tracheids in spruce (Picea abies [L. ] Karst. ) with the occurrence of reaction wood. Journal of Forest Science, 51: 203–212.JANOTA I., KRIPEŇ...

... 34.9% (beech stand) to 41.3% (spruce stand), for humus layers L, F and H from 3.3% (spruce stand) to 4.0% (beech stand) in the organo-mineral horizon Ah.e highest reserves of carbon and nitrogen ... 197 8). Comparing the present exchangeable pH with pH values measured, there occurred a decrease by about 10% (K 199 7). As for the division of soils according to the values of soil reaction ... Research Intention of the Institute of Systems Biology and Ecology, Academy of Sciences of the Czech Republic.Effects of spruce, beech and mixed commercial stand on humus conditions of forest soilsT....

... without standards (C), cutting with standards (CR), young cop-pice without standards (R), young coppice with standards (RR), adultstand (P), agricultural area (A) and fallow land (F) – provided thatthey ... that of coppice with standards, with small-scale cutting operations and min-imal intervention. None of the owners had any contacts with the forestry office technicians, their link with the professionbeing ... vision of thechanging landcover, which is equivalent to a progressive photo-interpretation [3 4]. The principle consists of modifying the shape of a copy of the polygons of a given year n to represent...

... transpiration efficiency of peanuts(Arachis hypogea L), Aust. J. Plant. Physiol.15 (198 8) 799-813. of growth, representative of the whole life-span of the seedlings? ii) measurementsduring ... correlated with the amount of rainfall in the geographicalorigin of provenances, the ranking of provenances was:[Gih] ≥ [Kon, Mor, Dos, Man] [Mat, Kag]The magnitude ... provenances for total dry mass(TDM), total water-use (TWU), and water-use efficiency (W):[Man, Gih] ≥ [Mat, Kag] ≥[Mor] ≥ [Dos, Kon] Means decreased from the...

... =0.15-(0.95x10!x 0)+ (1.6x10!x Ir) (N= 542; r2= 0.5 2). Late summer (data after the beginning of the dry period):gs = 0.08 - (0.34 x 10! x D) + (0.38 x10-4 x Ir ) (N = 111; ... &Whitehead D. (198 2) Systematic spatial varia-tion of stomatal conductance in a Sitka spruce plantation. J. Appl. EcoL 19, 835-851Running S.W. (197 9) Environmental and ... the ratio of canopy transpiration topotential evapotranspiration (PET) (Pen-man-Monteith) dropped from 0.75 in Juneto 0.44 in late summer.Linear regression of gs on air...

... (Abies alba Mill .) was an important species for forestry in the last centuries. Due to the transition to clear-cut forest management giv-ing priority to Norway spruce (Picea abies [L. ] Karst. ), ... stands of the 7th (spruce- beech) and 8th (spruce) altitudinal vegetation zone were a criterion for sampling. For a comparison, the samples of the 6th altitudinal vegetation zone (beech -spruce) ... et al. (200 5), in Germany by M et al. (200 4), B et al. (199 5), and in France by P et al. (200 8). e paper presents the results of the nutrient bal-ance and content of the stress...

... press)Götsche-Kühn H (198 8) Bildung und Eigenschaften desHolzes von Fichten (Picea abies (L) Karst) aus Wald-schadensgebieten. [Formation and properties of Nor-way spruce ... Original articleThe growth of spruce (Picea abies (L) Karst) in the Krkonoše-(Giant) Mountains as indicatedby ring width and wood densityC ... 1.2 %) of the tree rings of the southern-slopespruces but only 54 (0.5 %) of the northern-slope spruces were partly or totally missing.There was no apparent influence of...

... altitudinal zone (FAZ) (dominant associations of Calamagrostio villosae-Piceetum and Sphagno-Piceetum) (cf. C 1996; J, F-  199 2). Norway spruce (Picea abies [L. ] Karst. ) is the main ... 2005. Structure and func-tions of the types of Norway spruce (Picea abies [L. ] Karst. ) roots. Journal of Forest Science, 51: 305–311.J. FOR. SCI., 53, 2007 ( 3): 101–112 109pair-group averages ... Central Europe), where Norway spruce (Picea abies [L. ] Karst. ) is the main edificator and stand-forming tree species. We evaluated the soil properties of H- and Ep-horizons at selected sites with Haplic...

... of the Czech Republic, Research Programme No. MSM 6215648902, and the Ministry of Agriculture of the Czech Republic, Project QG 60060.Response of the Norway spruce (Picea abies [L. ] Karst. ) ... (cm)Honey fungus incidence (% of trees)Rots (% of trees)Max. angle between horizontal skeletal roots (degrees)Deformation into tangle (% of trees) Index pRooting depth (cm)Whole ... trees exhibited a 5% incidence of black ectomycorrhizas.254 J. FOR. SCI., 54, 2008 ( 6): 245–254Odezva kořenového systému smrku ztepilého (Picea abies [L. ] Karst. ) na měnící se vlhkostní a teplotní...