DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA
The study focuses on the determination of chlorophyll content in four prevailing grasses in the relict arctic-alpine tundra located in the Krkonoše Mountains National Park, Czech Republic. We compared two methods for determination of leaf chlorophyll content (LCC) – spectrophotometric determination...
Published in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications
2022
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Online Access: | https://doi.org/10.5194/isprs-archives-XLIII-B3-2022-381-2022 https://doaj.org/article/de588990f24848ae89f76de4311cef98 |
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ftdoajarticles:oai:doaj.org/article:de588990f24848ae89f76de4311cef98 2023-05-15T15:11:57+02:00 DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA L. Červená G. Pinlová Z. Lhotáková E. Neuwirthová L. Kupková M. Potůčková J. Lysák P. Campbell J. Albrechtová 2022-05-01T00:00:00Z https://doi.org/10.5194/isprs-archives-XLIII-B3-2022-381-2022 https://doaj.org/article/de588990f24848ae89f76de4311cef98 EN eng Copernicus Publications https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLIII-B3-2022/381/2022/isprs-archives-XLIII-B3-2022-381-2022.pdf https://doaj.org/toc/1682-1750 https://doaj.org/toc/2194-9034 doi:10.5194/isprs-archives-XLIII-B3-2022-381-2022 1682-1750 2194-9034 https://doaj.org/article/de588990f24848ae89f76de4311cef98 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B3-2022, Pp 381-388 (2022) Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 article 2022 ftdoajarticles https://doi.org/10.5194/isprs-archives-XLIII-B3-2022-381-2022 2022-12-30T23:53:06Z The study focuses on the determination of chlorophyll content in four prevailing grasses in the relict arctic-alpine tundra located in the Krkonoše Mountains National Park, Czech Republic. We compared two methods for determination of leaf chlorophyll content (LCC) – spectrophotometric determination in the laboratory, and the LCC assessed by fluorescence portable chlorophyll meter CCM-300. Relationships were established between the LCCs and vegetation indices calculated from leaf spectra acquired with contact probe coupled with an ASD FieldSpec4 Wide-Res spectroradiometer. Canopy chlorophyll contents (CCC) were computed from the LCCs and green leaf area index (LAI), and modelled based on the field spectra measured by the spectroradiometer and the hyperspectral images acquired by Headwall Nano-Hyperspec® mounted on the DJI Matrice 600 Pro drone. The calculations are performed on datasets acquired in June, July and August 2020 together and separately for species and months. In general, the correlations based on June datasets work the best at both levels: median R 2 for all indices was 0.52 for all species together at leaf level and median R 2 = 0.47 at the canopy level (vegetation indices computed from field spectra). Canopy chlorophyll content map was created based on the results of stepwise multiple linear regression. The R 2 was 0.42 when using four wavelengths from the red and red edge spectral region. We attribute the weak model performance to a combination of several factors: leaf structure may bias LCC from laboratory measurements, effects of LAI variability on CCC, and the sampling design, probably not covering the whole phenology equally for all studied species. Article in Journal/Newspaper Arctic Tundra Directory of Open Access Journals: DOAJ Articles Arctic The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B3-2022 381 388 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
spellingShingle |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 L. Červená G. Pinlová Z. Lhotáková E. Neuwirthová L. Kupková M. Potůčková J. Lysák P. Campbell J. Albrechtová DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA |
topic_facet |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
description |
The study focuses on the determination of chlorophyll content in four prevailing grasses in the relict arctic-alpine tundra located in the Krkonoše Mountains National Park, Czech Republic. We compared two methods for determination of leaf chlorophyll content (LCC) – spectrophotometric determination in the laboratory, and the LCC assessed by fluorescence portable chlorophyll meter CCM-300. Relationships were established between the LCCs and vegetation indices calculated from leaf spectra acquired with contact probe coupled with an ASD FieldSpec4 Wide-Res spectroradiometer. Canopy chlorophyll contents (CCC) were computed from the LCCs and green leaf area index (LAI), and modelled based on the field spectra measured by the spectroradiometer and the hyperspectral images acquired by Headwall Nano-Hyperspec® mounted on the DJI Matrice 600 Pro drone. The calculations are performed on datasets acquired in June, July and August 2020 together and separately for species and months. In general, the correlations based on June datasets work the best at both levels: median R 2 for all indices was 0.52 for all species together at leaf level and median R 2 = 0.47 at the canopy level (vegetation indices computed from field spectra). Canopy chlorophyll content map was created based on the results of stepwise multiple linear regression. The R 2 was 0.42 when using four wavelengths from the red and red edge spectral region. We attribute the weak model performance to a combination of several factors: leaf structure may bias LCC from laboratory measurements, effects of LAI variability on CCC, and the sampling design, probably not covering the whole phenology equally for all studied species. |
format |
Article in Journal/Newspaper |
author |
L. Červená G. Pinlová Z. Lhotáková E. Neuwirthová L. Kupková M. Potůčková J. Lysák P. Campbell J. Albrechtová |
author_facet |
L. Červená G. Pinlová Z. Lhotáková E. Neuwirthová L. Kupková M. Potůčková J. Lysák P. Campbell J. Albrechtová |
author_sort |
L. Červená |
title |
DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA |
title_short |
DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA |
title_full |
DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA |
title_fullStr |
DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA |
title_full_unstemmed |
DETERMINATION OF CHLOROPHYLL CONTENT IN SELECTED GRASS COMMUNITIES OF KRKONOŠE MTS. TUNDRA BASED ON LABORATORY SPECTROSCOPY AND AERIAL HYPERSPECTRAL DATA |
title_sort |
determination of chlorophyll content in selected grass communities of krkonoše mts. tundra based on laboratory spectroscopy and aerial hyperspectral data |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/isprs-archives-XLIII-B3-2022-381-2022 https://doaj.org/article/de588990f24848ae89f76de4311cef98 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B3-2022, Pp 381-388 (2022) |
op_relation |
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLIII-B3-2022/381/2022/isprs-archives-XLIII-B3-2022-381-2022.pdf https://doaj.org/toc/1682-1750 https://doaj.org/toc/2194-9034 doi:10.5194/isprs-archives-XLIII-B3-2022-381-2022 1682-1750 2194-9034 https://doaj.org/article/de588990f24848ae89f76de4311cef98 |
op_doi |
https://doi.org/10.5194/isprs-archives-XLIII-B3-2022-381-2022 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLIII-B3-2022 |
container_start_page |
381 |
op_container_end_page |
388 |
_version_ |
1766342725681020928 |