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dc.contributor.authorČerný, Jakub
dc.contributor.authorPokorný, Radek
dc.date.accessioned2021-10-02T00:02:13Z
dc.date.available2021-10-02T00:02:13Z
dc.date.issued2021
dc.identifier43921575
dc.identifier.issn1940-087X Sherpa/RoMEO, JCR
dc.identifier.urihttps://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1386
dc.description.abstractLeaf area index (LAI) is an essential canopy variable describing the amount of foliage in an ecosystem. The parameter serves as the interface between green components of plants and the atmosphere, and many physiological processes occur there, primarily photosynthetic uptake, respiration, and transpiration. LAI is also an input parameter for many models involving carbon, water, and the energy cycle. Moreover, ground-based in situ measurements serve as the calibration method for LAI obtained from remote sensing products. Therefore, straightforward indirect optical methods are necessary for making precise and rapid LAI estimates. The methodological approach, advantages, controversies, and future perspectives of the newly developed LP 110 optical device based on the relation between radiation transmitted through the vegetation canopy and canopy gaps were discussed in the protocol. Furthermore, the instrument was compared to the world standard LAI-2200 Plant Canopy Analyzer. The LP 110 enables more rapid and more straightforward processing of data acquired in the field, and it is more affordable than the Plant Canopy Analyzer. The new instrument is characterized by its ease of use for both above- and below-canopy readings due to its greater sensor sensitivity, in-built digital inclinometer, and automatic logging of readings at the correct position. Therefore, the hand-held LP 110 device is a suitable gadget for performing LAI estimation in forestry, ecology, horticulture, and agriculture based on the representative results. Moreover, the same device also enables the user to take accurate measurements of incident photosynthetically active radiation (PAR) intensity.en
dc.formate62802
dc.publisherJournal of Visualized Experiments (JoVE)
dc.relationEC/H2020/952314/Adaption strategies in forestry under global climate change impact
dc.relation.ispartofJournal of Visualized Experiments
dc.relation.urihttp://dx.doi.org/10.3791/62802
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectlaien
dc.subjectvalidationen
dc.subjectframeworken
dc.subjectproductsen
dc.titleField Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopyen
dc.typeJ_ČLÁNEK
dc.date.updated2021-10-02T00:02:13Z
dc.description.versionPostprint
local.identifier.doi10.3791/62802
local.identifier.wos000682796200090
local.number173
local.volumeNeuveden
local.identifier.obd43921575
local.identifier.e-issn1940-087X
dc.project.IDQK21020307
dc.project.IDOptimalizace pěstebních postupů pro adaptaci lesních ekosystémů na klimatickou změnu
dc.project.ID952314
dc.project.IDAdaption strategies in forestry under global climate change impact (ASFORCLIC)
dc.identifier.orcidPokorný, Radek 0000-0001-5121-6694
local.contributor.affiliationLDF
local.horizonH_2020


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Except where otherwise noted, this item's license is described as CC BY 4.0