Estimation of newly grown needle area in Norway spruce based on simple biometrical tree parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43915590" target="_blank" >RIV/62156489:43410/19:43915590 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/19:00504637

Výsledek na webu

<a href="https://www.forestscience.at/content/dam/holz/forest-science/2019/01/CB1901_Art1.pdf" target="_blank" >https://www.forestscience.at/content/dam/holz/forest-science/2019/01/CB1901_Art1.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Estimation of newly grown needle area in Norway spruce based on simple biometrical tree parameters

Popis výsledku v původním jazyce

Estimation of newly grown needle area, as the most active part of assimilation appa-ratus, is important for better understanding of biochemical processes of trees. This paper investigates the relationship between the projected area of newly grown need-les and other biometric tree parameters (tree height HTREE, diameter at breast height DBH, projected crown area and crown length) of Norway spruce trees. The total pro-jected area of newly grown needles of seven sampled trees was estimated using a detailed inventory of the number and length of shoots. The relationship between this value and other readily measurable biometric tree characteristics was tested to find the best model for estimating total area of newly grown needles. The model using HTREE*DBH with a coefficient of determination of 0.96 had the best performance. The DBH and HTREE inventory of all trees in the studied plot was used to estimate the total projected area of newly grown needles of the entire forest stand (4506.7 m2 per hec-tare). We also investigated specific leaf area (SLA) of newly grown needles in vertical profile of tree crown. SLA increased constantly from the tree top (28.7 cm2.g2) to the crown base (80.3 cm2.g2).

Název v anglickém jazyce

Estimation of newly grown needle area in Norway spruce based on simple biometrical tree parameters

Popis výsledku anglicky

Estimation of newly grown needle area, as the most active part of assimilation appa-ratus, is important for better understanding of biochemical processes of trees. This paper investigates the relationship between the projected area of newly grown need-les and other biometric tree parameters (tree height HTREE, diameter at breast height DBH, projected crown area and crown length) of Norway spruce trees. The total pro-jected area of newly grown needles of seven sampled trees was estimated using a detailed inventory of the number and length of shoots. The relationship between this value and other readily measurable biometric tree characteristics was tested to find the best model for estimating total area of newly grown needles. The model using HTREE*DBH with a coefficient of determination of 0.96 had the best performance. The DBH and HTREE inventory of all trees in the studied plot was used to estimate the total projected area of newly grown needles of the entire forest stand (4506.7 m2 per hec-tare). We also investigated specific leaf area (SLA) of newly grown needles in vertical profile of tree crown. SLA increased constantly from the tree top (28.7 cm2.g2) to the crown base (80.3 cm2.g2).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40102 - Forestry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Austrian Journal of Forest Science

ISSN

0379-5292

e-ISSN

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Svazek periodika

136

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

25

Strana od-do

1-25

Kód UT WoS článku

000465022500001

EID výsledku v databázi Scopus

2-s2.0-85065613636