Development of long-term monitoring of Antarctic moss banks to recent climate changes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00141689" target="_blank" >RIV/00216224:14310/25:00141689 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1873965225000118?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1873965225000118?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polar.2025.101174" target="_blank" >10.1016/j.polar.2025.101174</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of long-term monitoring of Antarctic moss banks to recent climate changes

Popis výsledku v původním jazyce

The parameters of four moss banks in Argentine Islands were studied. Using unmanned aerial vehicle, we distinguished green and non-green color classes of moss in order to evaluate interannual changes. Spectral reflectance data were recorded and the normalized difference vegetation index (NDVI) values were calculated for each color class. Interannually, NDVI of green class cover increased, indicating a possible positive impact of integrate environmental factors. Laboratory measurements revealed a significant difference in chlorophyll content and shape of spectral reflectance curves (380–790 nm) for color classes of two dominant species of the moss communities, Polytrichum strictum and Sanionia georgicouncinata. The analysis of spectral indices revealed color-dependent differences in NDVI and other indices; photochemical reflectance index and NDVI were discovered to be the most sensitive to detect color classes. Chlorophyll fluorescence transients (OJIPs) and OJIP- derived parameters decreased in both species from green to non-green class due to the progressive decline in chlorophyll content and its ability to perform Photosystem II related photosynthetic processes. Thus, the green color class is healthy with a high chlorophyll content while the non-green is unhealthy, that can be used as an indicator of changes in the state of moss bank for the long-term monitoring.

Název v anglickém jazyce

Development of long-term monitoring of Antarctic moss banks to recent climate changes

Popis výsledku anglicky

The parameters of four moss banks in Argentine Islands were studied. Using unmanned aerial vehicle, we distinguished green and non-green color classes of moss in order to evaluate interannual changes. Spectral reflectance data were recorded and the normalized difference vegetation index (NDVI) values were calculated for each color class. Interannually, NDVI of green class cover increased, indicating a possible positive impact of integrate environmental factors. Laboratory measurements revealed a significant difference in chlorophyll content and shape of spectral reflectance curves (380–790 nm) for color classes of two dominant species of the moss communities, Polytrichum strictum and Sanionia georgicouncinata. The analysis of spectral indices revealed color-dependent differences in NDVI and other indices; photochemical reflectance index and NDVI were discovered to be the most sensitive to detect color classes. Chlorophyll fluorescence transients (OJIPs) and OJIP- derived parameters decreased in both species from green to non-green class due to the progressive decline in chlorophyll content and its ability to perform Photosystem II related photosynthetic processes. Thus, the green color class is healthy with a high chlorophyll content while the non-green is unhealthy, that can be used as an indicator of changes in the state of moss bank for the long-term monitoring.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10600 - Biological sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polar Science

ISSN

1873-9652

e-ISSN

1876-4428

Svazek periodika

44

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001521379100005

EID výsledku v databázi Scopus

2-s2.0-85218988199