An Improved Weise’s Rule for Efficient Estimation of Stand Quadratic Mean Diameter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F15%3A68469" target="_blank" >RIV/60460709:41320/15:68469 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3390/f6082545" target="_blank" >http://dx.doi.org/10.3390/f6082545</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/f6082545" target="_blank" >10.3390/f6082545</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An Improved Weise’s Rule for Efficient Estimation of Stand Quadratic Mean Diameter

Popis výsledku v původním jazyce

The main objective of this study was to explore the accuracy of Weise's rule of thumb applied to an estimation of the quadratic mean diameter of a forest stand. Virtual stands of European beech (Fagus sylvatica L.) across a range of structure types were stochastically generated and random sampling was simulated. We compared the bias and accuracy of stand quadratic mean diameter estimates, employing different ranks of measured stems from a set of the 10 trees nearest to the sampling point. We proposed several modifications of the original Weise's rule based on the measurement and averaging of two different ranks centered to a target rank. In accordance with the original formulation of the empirical rule, we recommend the application of the measurement of the 6th stem in rank corresponding to the 55% sample percentile of diameter distribution, irrespective of mean diameter size and degree of diameter dispersion. The study also revealed that the application of appropriate two-measurement modifications o

Název v anglickém jazyce

An Improved Weise’s Rule for Efficient Estimation of Stand Quadratic Mean Diameter

Popis výsledku anglicky

The main objective of this study was to explore the accuracy of Weise's rule of thumb applied to an estimation of the quadratic mean diameter of a forest stand. Virtual stands of European beech (Fagus sylvatica L.) across a range of structure types were stochastically generated and random sampling was simulated. We compared the bias and accuracy of stand quadratic mean diameter estimates, employing different ranks of measured stems from a set of the 10 trees nearest to the sampling point. We proposed several modifications of the original Weise's rule based on the measurement and averaging of two different ranks centered to a target rank. In accordance with the original formulation of the empirical rule, we recommend the application of the measurement of the 6th stem in rank corresponding to the 55% sample percentile of diameter distribution, irrespective of mean diameter size and degree of diameter dispersion. The study also revealed that the application of appropriate two-measurement modifications o

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GK - Lesnictví

OECD FORD obor

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Projekt

<a href="/cs/project/QJ1320230" target="_blank" >QJ1320230: Systémy pro podporu rozhodování v lesním hospodářství s cílem posílení produkčních i mimorpodukčních funkcí lesa</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

FORESTS

ISSN

1999-4907

e-ISSN

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Svazek periodika

6

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

15

Strana od-do

2545-2559

Kód UT WoS článku

000360319200003

EID výsledku v databázi Scopus

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