The usability of tree vitality meter TVM for the control [checking] of forest damage by immissions
1995
Mihina, V. | Istona, J. (Lesnicky Vyskumny Ustav, Zvolen (Slovakia))
anglais. The usefulness of measuring electrical resistance of cambial tissue of living trees, whose physical substance is connected neither with state of health nor its visible symptoms, is discussed. Electrical resistance characterizes the instantaneous physiological state (vitality) of the tree which can, within its adaptability to unfavourable conditions and regeneration, return to a normal state. Its usability is limited to comparison on a strictly equal basis, which means it is not of general use for checking the state of forest health
Afficher plus [+] Moins [-]slovaque. Clanok referuje o poznatkoch z vyskumu pouzitelnosti merania elektrickeho odporu kambialneho pletiva ziveho stromu, ktory zo svoje fyzikalnej podstaty nema jednoznacnu suvislost ani so zdravotnym stavom ani s jeho viditelnymi prejavmi. Merany odpor charakterizuje okamzity fyziologicky stav (vitalitu) stromu, ktory sa v schopnosti prisposobovania nepriaznivym podmienkam a regeneracie moze normalizovat. Jeho pouzitelnost je preto obmedzena len v zmysle porovnavania na prisne rovnakom zaklade, co znamena vylucenie vseobecneho pouzivania na kotrolu zdravotneho stavu lesa
Afficher plus [+] Moins [-]Mots clés AGROVOC
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