Leaf area index, its significance and methods of estimation

The method of indirect LAI estimation is based on measurements of light transmission through a canopy layer, which is less laborious and much faster. Several examples of LAI measurements in forest stands are demonstrated. Canopy Analyzer LI-2000 (LI-COR., USA), Ceptometer (Degacon, USA), DEMON (CSIR...

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Published inLesnictvi - UZPI (Czech Republic) Vol. 41; no. 8
Main Authors Oplustilova, M, Dvorak, V, Marek, M.V. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny), Vyskot, I
Format Journal Article
LanguageCzech
Published 01.08.1995
Subjects
APLICACION DE ABONOS
COPA
ENERGIA SOLAR
ENERGIE SOLAIRE
EQUIPO
FERTILISATION
FEUILLE
HOJAS
HOUPPIER
MATERIEL
MEDICION
MESURE
METHODE
METODOS
MODELE MATHEMATIQUE
MODELOS MATEMATICOS
PICEA ABIES
SUPERFICIE FOLIAR
SURFACE FOLIAIRE
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Summary:The method of indirect LAI estimation is based on measurements of light transmission through a canopy layer, which is less laborious and much faster. Several examples of LAI measurements in forest stands are demonstrated. Canopy Analyzer LI-2000 (LI-COR., USA), Ceptometer (Degacon, USA), DEMON (CSIRO, Australia), ALA-02 (ASES, CR), a cable tram-way system for light transmission measurements and a system of steady point photocell sensors placed below a canopy were used for indirect LAI estimation. It is necessary to realize that the indirect method produces only relative LAI values and therefore, only results obtained from the same instrument and using the same acceptable method can be compared.
Bibliography:F62
U30
F01
9501101
ISSN:0024-1105