Comparison of linear mixed effects model and generalized model of the tree height-diameter relationship
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906573" target="_blank" >RIV/62156489:43410/15:43906573 - isvavai.cz</a>
Result on the web
<a href="http://www.agriculturejournals.cz/publicFiles/166864.pdf" target="_blank" >http://www.agriculturejournals.cz/publicFiles/166864.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/68/2015-JFS" target="_blank" >10.17221/68/2015-JFS</a>
Alternative languages
Result language
angličtina
Original language name
Comparison of linear mixed effects model and generalized model of the tree height-diameter relationship
Original language description
Models of height curves generated using a linear mixed effects model and generalized model were com-pared. Both tested models were also compared with local models of height curves, which were fitted using a nonlinear regression. In the mixed model two versions of calibration were tested. The first calibration approach was based on measurement of heights only in trees of the mean diameter interval, while the second calibration approach was based on measurement of tree heights in three diameter intervals.Generalized model is the mathematical formulation of a system of uniform height curves, which is commonly used in the Czech Republic. The study took place at Training Forest Enterprise called Masaryk Forest at Křtiny and was carried out for Norway spruce (Picea abies[L.] Karst.). It was found that the mixed model behaves correctly only in the case of calibration based on selection of trees in three diameter intervals. Selection of a total of nine trees was confirmed as the most suitable
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GK - Forestry
OECD FORD branch
—
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Forest Science
ISSN
1212-4834
e-ISSN
—
Volume of the periodical
61
Issue of the periodical within the volume
10
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
9
Pages from-to
439-447
UT code for WoS article
—
EID of the result in the Scopus database
—