Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43916420" target="_blank" >RIV/62156489:43410/19:43916420 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00020702:_____/19:N0000030
Výsledek na webu
<a href="http://dx.doi.org/10.3791/59757" target="_blank" >http://dx.doi.org/10.3791/59757</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3791/59757" target="_blank" >10.3791/59757</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
Popis výsledku v původním jazyce
Accurate estimations of leaf area index (LAI), defined as half of the total leaf surface area per unit of horizontal ground surface area, are crucial for describing the vegetation structure in the fields of ecology, forestry, and agriculture. Therefore, procedures of three commercially used methods (litter traps, needle technique, and a plant canopy analyzer) for performing LAI estimation were presented step-by-step. Specific methodological approaches were compared, and their current advantages, controversies, challenges, and future perspectives were discussed in this protocol. Litter traps are usually deemed as the reference level. Both the needle technique and the plant canopy analyzer (e.g., LAI-2000) frequently underestimate LAI values in comparison with the reference. The needle technique is easy to use in deciduous stands where the litter completely decomposes each year (e.g., oak and beech stands). However, calibration based on litter traps or direct destructive methods is necessary. The plant canopy analyzer is a commonly used device for performing LAI estimation in ecology, forestry, and agriculture, but is subject to potential error due to foliage clumping and the contribution of woody elements in the field of view (FOV) of the sensor. Eliminating these potential error sources was discussed. The plant canopy analyzer is a very suitable device for performing LAI estimations at the high spatial level, observing a seasonal LAI dynamic, and for long-term monitoring of LAI.
Název v anglickém jazyce
Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
Popis výsledku anglicky
Accurate estimations of leaf area index (LAI), defined as half of the total leaf surface area per unit of horizontal ground surface area, are crucial for describing the vegetation structure in the fields of ecology, forestry, and agriculture. Therefore, procedures of three commercially used methods (litter traps, needle technique, and a plant canopy analyzer) for performing LAI estimation were presented step-by-step. Specific methodological approaches were compared, and their current advantages, controversies, challenges, and future perspectives were discussed in this protocol. Litter traps are usually deemed as the reference level. Both the needle technique and the plant canopy analyzer (e.g., LAI-2000) frequently underestimate LAI values in comparison with the reference. The needle technique is easy to use in deciduous stands where the litter completely decomposes each year (e.g., oak and beech stands). However, calibration based on litter traps or direct destructive methods is necessary. The plant canopy analyzer is a commonly used device for performing LAI estimation in ecology, forestry, and agriculture, but is subject to potential error due to foliage clumping and the contribution of woody elements in the field of view (FOV) of the sensor. Eliminating these potential error sources was discussed. The plant canopy analyzer is a very suitable device for performing LAI estimations at the high spatial level, observing a seasonal LAI dynamic, and for long-term monitoring of LAI.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
40102 - Forestry
Návaznosti výsledku
Projekt
<a href="/cs/project/QK1810126" target="_blank" >QK1810126: Zakládání a výchova směsí přípravných a cílových dřevin plnících produkční a mimoprodukční funkce lesa v oblasti velkoplošně hynoucích smrkových porostů</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Visualized Experiments
ISSN
1940-087X
e-ISSN
—
Svazek periodika
Neuveden
Číslo periodika v rámci svazku
150
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
14
Strana od-do
"e59757"
Kód UT WoS článku
000486589800064
EID výsledku v databázi Scopus
2-s2.0-85072173113