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Norway spruce fine roots investigation in the West Beskids Mts.
1998
Kodrik, M. (Slovenska Akademia Vied, Zvolen (Slovak Republic). Ustav Ekologie Lesa)
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.
显示更多 [+] 显示较少 [-]Biometrical relationships of volume increment to crown defoliation and other variables of spruce stands in the Oravska Polhora research site [Slovak Republic]
1998
Smelko, S. (Technicka Univ., Zvolen (Slovak Republic). Lesnicka Fakulta)
This contribution deals with the relationship evaluated on the basis of 32 permanent monitoring plots. Tree volume increment as a total "brutto" and also as a pure "netto" change for 1 ha is defined. The first one includes also the influence of felling, mortality and increment ingrowth, second one includes only changes due to the growth process. Relationship of increment to stand variables is investigated bz stepwise regression. A more higher correlation to defoliation was found, less high to age, site index and altitude.
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