Modelling tree crown-to-bole diameter ratio for Norway spruce and European beech

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F17%3A75776" target="_blank" >RIV/60460709:41320/17:75776 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.14214/sf.1740" target="_blank" >http://dx.doi.org/10.14214/sf.1740</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14214/sf.1740" target="_blank" >10.14214/sf.1740</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modelling tree crown-to-bole diameter ratio for Norway spruce and European beech

Popis výsledku v původním jazyce

Crown dimensions are correlated to growth of other parts of a tree and often used as predictors in growth models. The crown-to-bole diameter ratio (CDBDR), which is a ratio of maximum crown width to diameter at breast height (DBH), was modelled using data from permanent sample plots located on Norway spruce (Picea abies (L.) Karst.) and European beech (Fagus sylvatica L.) stands in different parts of the Czech Republic. Among various tree and stand-level measures evaluated, DBH, height to crown base (HCB), dominant height (HDOM), basal area of trees larger in diameter than a subject tree (BAL), basal area proportion of the species of interest (BAPOR), and Hegyi s competition index (CI) were found to be significant predictors in the CDBDR model. Random effects were included using the mixed-effects modelling to describe sample plot-level variation. For each species, the mixed-effects model described a larger part of the variation of the CDBDR than nonlinear ordinary least squares model with no trend in

Název v anglickém jazyce

Modelling tree crown-to-bole diameter ratio for Norway spruce and European beech

Popis výsledku anglicky

Crown dimensions are correlated to growth of other parts of a tree and often used as predictors in growth models. The crown-to-bole diameter ratio (CDBDR), which is a ratio of maximum crown width to diameter at breast height (DBH), was modelled using data from permanent sample plots located on Norway spruce (Picea abies (L.) Karst.) and European beech (Fagus sylvatica L.) stands in different parts of the Czech Republic. Among various tree and stand-level measures evaluated, DBH, height to crown base (HCB), dominant height (HDOM), basal area of trees larger in diameter than a subject tree (BAL), basal area proportion of the species of interest (BAPOR), and Hegyi s competition index (CI) were found to be significant predictors in the CDBDR model. Random effects were included using the mixed-effects modelling to describe sample plot-level variation. For each species, the mixed-effects model described a larger part of the variation of the CDBDR than nonlinear ordinary least squares model with no trend in

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

<a href="/cs/project/QJ1520037" target="_blank" >QJ1520037: Zvyšování adaptability borového hospodářství v podmínkách České republiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

SILVA FENNICA

ISSN

0037-5330

e-ISSN

—

Svazek periodika

51

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

22

Strana od-do

1-22

Kód UT WoS článku

000417043300001

EID výsledku v databázi Scopus

2-s2.0-85037529475