Projects per year
Abstract
Modern satellite and airborne optical images have increasingly higher resolutions and enable the study of all layers of forests, not just the forest canopy. To understand the contribution of different types of understory on the overall spectral reflectance signal, ground reference data are needed from different types of forests. In this paper, we present the analysis of spectral reflectance factors (350-2300 nm) and fractional covers of understory from 36 boreal forest stands. The data were collected during peak growing season in a southern boreal forest area in Finland. The study stands represent four different forest site fertility types. We used a spectrometer to measure understory spectra in nadir and vegetation quadrats to estimate fractional cover. We showed that the understory has specific spectral features related to the site fertility type and fractional cover. Our results suggest that remote sensing can be used to differentiate forest site fertility types and estimate understory green fractional cover in northern European boreal forests. The collected data are openly available in an open data repository.
Original language | English |
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Article number | 108604 |
Number of pages | 7 |
Journal | Agricultural and Forest Meteorology |
Volume | 308-309 |
DOIs | |
Publication status | Published - 15 Oct 2021 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Forest reflectance
- Forest site type
- Hyperspectral
- Vegetation index
Fingerprint
Dive into the research topics of 'Relationships between understory spectra and fractional cover in northern European boreal forests'. Together they form a unique fingerprint.Projects
- 3 Finished
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DIMEBO: Spectral Diversity Metrics for Boreal Forests
Rautiainen, M. (Principal investigator)
01/09/2019 → 30/06/2022
Project: Academy of Finland: Other research funding
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FREEDLES: From needles to landscapes: a novel approach to scaling forest spectra
01/05/2018 → 30/04/2024
Project: EU_H2ERC
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BOREALITY: Seasonal dynamics of the boreal region from space: connecting forest albedo to structure and productivity throughout the phenological cycle
Rautiainen, M. (Principal investigator)
01/09/2015 → 31/12/2019
Project: Academy of Finland: Other research funding
Equipment
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i3 – Industry Innovation Infrastructure
Sainio, P. (Manager)
School of EngineeringFacility/equipment: Facility
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Spectral lab (i3)
Rautiainen, M. (Manager)
Department of Built EnvironmentFacility/equipment: Facility