A spectral analysis of stem bark for boreal and temperate tree species
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Authors
Date
2022-03
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
14
Series
ECOLOGY AND EVOLUTION, Volume 12, issue 3
Abstract
The woody material of forest canopies has a significant effect on the total forest reflectance and on the interpretation of remotely sensed data, yet research on the spectral properties of bark has been limited. We developed a novel measurement setup for acquiring stem bark reflectance spectra in field conditions, using a mobile hyperspectral camera. The setup was used for stem bark reflectance measurements of ten boreal and temperate tree species in the visible (VIS) to near-infrared (NIR) (400–1000 nm) wavelength region. Twenty trees of each species were measured, constituting a total of 200 hyperspectral reflectance images. The mean bark spectra of species were similar in the VIS region, and the interspecific variation was largest in the NIR region. The intraspecific variation of bark spectra was high for all studied species from the VIS to the NIR region. The spectral similarity of our study species did not correspond to the general phylogenetic lineages. The hyperspectral reflectance images revealed that the distributions of per-pixel reflectance values within images were species-specific. The spectral library collected in this study contributes toward building a comprehensive understanding of the spectral diversity of forests needed not only in remote sensing applications but also in, for example, biodiversity or land surface modeling studies.Description
| openaire: EC/H2020/771049/EU//FREEDLES Funding Information: The study was partly funded by Academy of Finland (grant: DIMEBO 323004). This study has also received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No 771049). The text reflects only the authors’ view and the Agency is not responsible for any use that may be made of the information it contains. Publisher Copyright: © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.
Keywords
field measurement, forest, hyperspectral, imaging spectroscopy, reflectance
Other note
Citation
Juola, J, Hovi, A & Rautiainen, M 2022, ' A spectral analysis of stem bark for boreal and temperate tree species ', Ecology and Evolution, vol. 12, no. 3, e8718 . https://doi.org/10.1002/ece3.8718