Potential use of Sr isotope ratio to evaluate trace metal uptake in moss

Moss biomonitoring is widely applied to evaluate trace metals in atmospheric deposition and can be especially useful in mountainous areas where the installation and maintenance of physical equipment are often challenging. Nonetheless, the accuracy of moss biomonitoring is debatable because trace met...

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Autor principal:	Yoshitaka Oishi
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Moss Biomonitoring Atmospheric deposition Soil minerals Elevation Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/7e524363f40a4af69670ca59b8515442
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spelling	oai:doaj.org-article:7e524363f40a4af69670ca59b85154422021-12-01T04:33:56ZPotential use of Sr isotope ratio to evaluate trace metal uptake in moss1470-160X10.1016/j.ecolind.2020.107063https://doaj.org/article/7e524363f40a4af69670ca59b85154422021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20310025https://doaj.org/toc/1470-160XMoss biomonitoring is widely applied to evaluate trace metals in atmospheric deposition and can be especially useful in mountainous areas where the installation and maintenance of physical equipment are often challenging. Nonetheless, the accuracy of moss biomonitoring is debatable because trace metals in moss are also affected by local soil. The Sr isotope ratio (87Sr/86Sr) is useful in the examination of the influence of soil because it allows characterization of the sources of trace metals in moss. Accordingly, this study determined the trace metal uptake in moss from local soil using the 87Sr/86Sr ratio in mountainous areas. Moss samples were collected in study plots located at elevations of 1800–2800 m in the Yatsugatake Mountains, central Japan. The changes in their Sr concentrations (moss Sr) and Sr isotope ratios (moss 87Sr/86Sr) with elevation were analyzed in relation to the Sr isotope ratios in soil (soil 87Sr/86Sr) and moss biomass. Moss 87Sr/86Sr was positively correlated with soil 87Sr/86Sr, indicating that moss mainly took up soil-derived Sr across all elevation ranges. This strong influence of soil-derived Sr on moss may be attributed to the higher amount of Sr in soil than in atmospheric deposition. Moss 87Sr/86Sr had higher values than soil 87Sr/86Sr at higher elevations. Given that atmospherically deposited 87Sr/86Sr exhibits higher values than soil 87Sr/86Sr, Sr input from atmospheric deposition was increased at higher elevations. The moss biomass had negative effects on moss Sr and positive effects on moss 87Sr/86Sr. These correlations can be explained by the reduced uptake of soil-derived Sr in moss as the moss biomass increased. Therefore, patterns of trace metal uptake in moss changed with elevation; however, moss mainly took up Sr from soil across all elevations.Yoshitaka OishiElsevierarticleMossBiomonitoringAtmospheric depositionSoil mineralsElevationEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107063- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Moss Biomonitoring Atmospheric deposition Soil minerals Elevation Ecology QH540-549.5
spellingShingle	Moss Biomonitoring Atmospheric deposition Soil minerals Elevation Ecology QH540-549.5 Yoshitaka Oishi Potential use of Sr isotope ratio to evaluate trace metal uptake in moss
description	Moss biomonitoring is widely applied to evaluate trace metals in atmospheric deposition and can be especially useful in mountainous areas where the installation and maintenance of physical equipment are often challenging. Nonetheless, the accuracy of moss biomonitoring is debatable because trace metals in moss are also affected by local soil. The Sr isotope ratio (87Sr/86Sr) is useful in the examination of the influence of soil because it allows characterization of the sources of trace metals in moss. Accordingly, this study determined the trace metal uptake in moss from local soil using the 87Sr/86Sr ratio in mountainous areas. Moss samples were collected in study plots located at elevations of 1800–2800 m in the Yatsugatake Mountains, central Japan. The changes in their Sr concentrations (moss Sr) and Sr isotope ratios (moss 87Sr/86Sr) with elevation were analyzed in relation to the Sr isotope ratios in soil (soil 87Sr/86Sr) and moss biomass. Moss 87Sr/86Sr was positively correlated with soil 87Sr/86Sr, indicating that moss mainly took up soil-derived Sr across all elevation ranges. This strong influence of soil-derived Sr on moss may be attributed to the higher amount of Sr in soil than in atmospheric deposition. Moss 87Sr/86Sr had higher values than soil 87Sr/86Sr at higher elevations. Given that atmospherically deposited 87Sr/86Sr exhibits higher values than soil 87Sr/86Sr, Sr input from atmospheric deposition was increased at higher elevations. The moss biomass had negative effects on moss Sr and positive effects on moss 87Sr/86Sr. These correlations can be explained by the reduced uptake of soil-derived Sr in moss as the moss biomass increased. Therefore, patterns of trace metal uptake in moss changed with elevation; however, moss mainly took up Sr from soil across all elevations.
format	article
author	Yoshitaka Oishi
author_facet	Yoshitaka Oishi
author_sort	Yoshitaka Oishi
title	Potential use of Sr isotope ratio to evaluate trace metal uptake in moss
title_short	Potential use of Sr isotope ratio to evaluate trace metal uptake in moss
title_full	Potential use of Sr isotope ratio to evaluate trace metal uptake in moss
title_fullStr	Potential use of Sr isotope ratio to evaluate trace metal uptake in moss
title_full_unstemmed	Potential use of Sr isotope ratio to evaluate trace metal uptake in moss
title_sort	potential use of sr isotope ratio to evaluate trace metal uptake in moss
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7e524363f40a4af69670ca59b8515442
work_keys_str_mv	AT yoshitakaoishi potentialuseofsrisotoperatiotoevaluatetracemetaluptakeinmoss
_version_	1718405852223766528

Potential use of Sr isotope ratio to evaluate trace metal uptake in moss

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