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Resultados 1-10 de 15
The life history strategy reflected in morphology, biomass allocation and standing crop of Athyrium distentifolium
1998
Fiala, K. | Tuma, I. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny) | Pande, K.
The growth of Calamagrostis villosa at different localities in the Moravian-Silesian Beskids Mts. [Czech Republic]
1998
Holub, P. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny) | Pande, K.
Allometric relationships between stem volume and the biomass of Norway spruce
1998
Pokorny, R. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny)
The objectives of this study were (I) to establish allometric relationships between the stem volume and biomass of the stem, branches, leaves and the leaf area, and crown dimensions of individual trees, (II) to determine the relative aboveground biomass distribution, (III) to determine the vertical gradient of the specific leaf area and (IV) to estimate the aboveground stand biomass and the leaf area. Diameter at 0.3m height above ground and height of each tree were measured as the basic biometrical characteristics. The coefficient of the shape of the trunk was found by Huber's method.
Mostrar más [+] Menos [-]A study of growth and morphology of Athyrium distentifolium growing in different environmental conditions in the Beskydy Mts. [Czech Republic]
1998
Pande, K. (Ithaca College, New York (USA). Dept. of Biology)
Physiological aspects of the health state of Norway spruce using different silvicultural concepts
1998
Kmet, J. | Jaloviar, P. (Technicka Univ., Zvolen (Slovak Republic). Lesnicka Fakulta)
The sample trees from two stands managed by different management systems - shelterwood and selection systems, and two generations within each stand, were compared. The evaluation of the potential acidity and conductivity of dry-mass extracts (KSE) proved an adverse effect of environment on the maternal stand in the shelterwood forest. The KSE-values are systematically higher in samples taken from the young as well as mature sample trees in the selection forest. Despite the limited duration and extent of the investigations, a better ecological stability of the selection forest as compared with the shelterwood one was observed.
Mostrar más [+] Menos [-]Use of epicuticular waxes changes for detection of latent forest decline
1998
Bednarova, E. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Ekologie Lesa)
The aim of this study was to obtain data for elaboration of methods that would be suitable for detection of assimilative apparatus damage, if the damage is still in its latent phase. The needles are covered with epicuticular waxes, which have a protective function, but are also damaged by air pollution first.
Mostrar más [+] Menos [-]Forest condition monitoring in the Beskids Mts. [Czech Republic]
1995
Kristek, J. | Kula, E. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic)) | Michalec, M. | Moravcik, P. | Slavik, P.
Element content in spruce needles and their nutrient state in the Moravian-Silesian Beskids [Czech Republic]
1995
Hrdlicka, P. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Chemie a Biochemie)
The condition of spruce forests from the silvicultural and physiological point of view in the area Oravska Polhora [Slovak Republic]
1995
Saniga, M. | Kmet, J. (Technicka Univ., Zvolen (Slovakia). Lesnicka Fakulta)
Changes of macroelement content in spruce needles in relation to pollution load
1995
Hrdlicka, P. (Mendelova Zemedelska a Lesnicka Univ., Brno (Slovakia). Ustav chemie a biochemie)
