Generalized additive models as an alternative approach to the modelling of the tree height-diameter relationship

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906247" target="_blank" >RIV/62156489:43410/15:43906247 - isvavai.cz</a>

Result on the web

<a href="http://www.agriculturejournals.cz/publicFiles/155182.pdf" target="_blank" >http://www.agriculturejournals.cz/publicFiles/155182.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/14/2015-JFS" target="_blank" >10.17221/14/2015-JFS</a>

Result language

angličtina

Original language name

Generalized additive models as an alternative approach to the modelling of the tree height-diameter relationship

Original language description

Generalized additive models were tested using three types of smoothing functions as an alternative for modelling the height curve. The models were produced for 23 forest stands of Norway spruce (Picea abies [L.] Karst.) in the territory of the Training Forest Enterprise Masaryk Forest Křtiny. The results show that the best evaluated and recommended for practical use at the level of forest stand was the LOESS function (locally weighted scatterplot smooting) when using a greater width of the bandwidth. Due to the frequent overfitting and the associated unrealistic behaviour of the function, smoothing by spline functions cannot be recommended for modelling the height curve at the level of forest stand. It was validated that the resulting model must be assessed not only according to the calculated quality criteria, but also depending on the graphic pattern of the model which must ensure that the height curve pattern is realistic. The quality of the resulting models (with LOESS function) wa

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GK - Forestry

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Forest Science

ISSN

1212-4834

e-ISSN

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Volume of the periodical

61

Issue of the periodical within the volume

6

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

235-243

UT code for WoS article

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EID of the result in the Scopus database

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