LaiPen LP100 - a new device for estimating forest ecosystem leaf area index compared tothe etalon: A methodologic case study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020702%3A_____%2F18%3AN0000022" target="_blank" >RIV/00020702:_____/18:N0000022 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/18:00500052 RIV/62156489:43410/18:43914420

Výsledek na webu

<a href="https://www.agriculturejournals.cz/web/jfs.htm?type=article&id=112_2018-JFS" target="_blank" >https://www.agriculturejournals.cz/web/jfs.htm?type=article&id=112_2018-JFS</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/112/2018-JFS" target="_blank" >10.17221/112/2018-JFS</a>

Jazyk výsledku

angličtina

Název v původním jazyce

LaiPen LP100 - a new device for estimating forest ecosystem leaf area index compared tothe etalon: A methodologic case study

Popis výsledku v původním jazyce

Fast and precise leaf area index (LAI) estimation of a forest stand is frequently needed for a wide range of ecological studies. In the presented study, we compared side-by-side two instruments for performing LAI estimation (i.e. LaiPen LP 100 as a “newly developed device” and LAI-2200 PCA as the “world standard”), both based on indirect optical methods for performing LAI estimation in pure Norway spruce (Picea abies (Linnaeus) H. Karsten) stands under different thinning treatments. LAI values estimated by LaiPen LP 100 were approximate 5.8% lower compared to those measured by LAI-2200 PCA when averaging all collected data regardless of the thinning type. Nevertheless, when we considered the differences among LAI values at each measurement point within a regular grid, LaiPen LP 100 overestimated LAI values compared to those from LAI-2200 PCA on average by 1.4%. Therefore, both instruments are comparable. Similar LAI values between thinning from above (A) and thinning from below (B) approaches were indirectly detected by both instruments. The highest values of canopy production index and leaf area efficiency were observed within the stand thinned from above (plot A).

Název v anglickém jazyce

LaiPen LP100 - a new device for estimating forest ecosystem leaf area index compared tothe etalon: A methodologic case study

Popis výsledku anglicky

Fast and precise leaf area index (LAI) estimation of a forest stand is frequently needed for a wide range of ecological studies. In the presented study, we compared side-by-side two instruments for performing LAI estimation (i.e. LaiPen LP 100 as a “newly developed device” and LAI-2200 PCA as the “world standard”), both based on indirect optical methods for performing LAI estimation in pure Norway spruce (Picea abies (Linnaeus) H. Karsten) stands under different thinning treatments. LAI values estimated by LaiPen LP 100 were approximate 5.8% lower compared to those measured by LAI-2200 PCA when averaging all collected data regardless of the thinning type. Nevertheless, when we considered the differences among LAI values at each measurement point within a regular grid, LaiPen LP 100 overestimated LAI values compared to those from LAI-2200 PCA on average by 1.4%. Therefore, both instruments are comparable. Similar LAI values between thinning from above (A) and thinning from below (B) approaches were indirectly detected by both instruments. The highest values of canopy production index and leaf area efficiency were observed within the stand thinned from above (plot A).

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

<a href="/cs/project/QK1810443" target="_blank" >QK1810443: Postupy pro minimalizaci škod způsobených větrem a sněhem na lesních porostech v návaznosti na klimatickou změnu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Forest Science

ISSN

1212-4834

e-ISSN

1805-935X

Svazek periodika

64

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

455-468

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85057622423