Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses

Past environmental changes in mountain lakes can be reconstructed with the use of subfossil diatoms from post-glacial sediments. This study applied such an analysis to two mountain lakes in the Sudetes Mts. in Poland: Mały Staw (MS) and Wielki Staw (WS). Cores 882 cm long (MS) and 1100 cm long (WS)...

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Published in:Acta Palaeobotanica
Main Author: Sienkiewicz Elwira
Format: Article in Journal/Newspaper
Language:English
Published: W. Szafer Institute of Botany, Polish Academy of Sciences 2016
Subjects:
Online Access:https://doi.org/10.1515/acpa-2016-0002
https://doaj.org/article/7c6dcd2992d64f14b2f7b6207718e847
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spelling ftdoajarticles:oai:doaj.org/article:7c6dcd2992d64f14b2f7b6207718e847 2023-05-15T15:11:08+02:00 Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses Sienkiewicz Elwira 2016-06-01T00:00:00Z https://doi.org/10.1515/acpa-2016-0002 https://doaj.org/article/7c6dcd2992d64f14b2f7b6207718e847 EN eng W. Szafer Institute of Botany, Polish Academy of Sciences http://www.degruyter.com/view/j/acpa.2016.56.issue-1/acpa-2016-0002/acpa-2016-0002.xml?format=INT https://doaj.org/toc/2082-0259 2082-0259 doi:10.1515/acpa-2016-0002 https://doaj.org/article/7c6dcd2992d64f14b2f7b6207718e847 Acta Palaeobotanica, Vol 56, Iss 1, Pp 65-77 (2016) diatoms long-term acidification alpine lakes Holocene Sudetes Mountains Paleontology QE701-760 Botany QK1-989 article 2016 ftdoajarticles https://doi.org/10.1515/acpa-2016-0002 2022-12-31T05:45:01Z Past environmental changes in mountain lakes can be reconstructed with the use of subfossil diatoms from post-glacial sediments. This study applied such an analysis to two mountain lakes in the Sudetes Mts. in Poland: Mały Staw (MS) and Wielki Staw (WS). Cores 882 cm long (MS) and 1100 cm long (WS) taken from the centre of each lake in 1982 were used to study the long-term acidification history of these lakes. Changes in vegetation indicate that the initial phase of MS started at the end of the Pleistocene. WS sediments began to accumulate shortly after that, at the beginning of the Holocene. The majority of the diatom assemblages are typical of oligotrophic acidic lakes located in alpine and arctic regions. A pH reconstruction based on diatoms (DI-pH) showed long-term acidification dating to almost the beginning of the lakes’ existence. Natural acidification began after the deglaciation, and the most intensive acidification continued to the end of the mid-Holocene. Through the whole period studied, pH decreased by 1.4 in MS and 0.9 in WS. After a period of relatively stable lake water pH, it decreased rapidly during the last few decades of the 20th century, due to anthropogenic pollution: pH declined by 0.7 in MS and 0.3 in WS. Mały Staw, being shallower, smaller, and with a larger drainage basin than Wielki Staw, is more sensitive to acid deposition; this accounts for the difference in pH. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Acta Palaeobotanica 56 1 65 77
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic diatoms
long-term acidification
alpine lakes
Holocene
Sudetes Mountains
Paleontology
QE701-760
Botany
QK1-989
spellingShingle diatoms
long-term acidification
alpine lakes
Holocene
Sudetes Mountains
Paleontology
QE701-760
Botany
QK1-989
Sienkiewicz Elwira
Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses
topic_facet diatoms
long-term acidification
alpine lakes
Holocene
Sudetes Mountains
Paleontology
QE701-760
Botany
QK1-989
description Past environmental changes in mountain lakes can be reconstructed with the use of subfossil diatoms from post-glacial sediments. This study applied such an analysis to two mountain lakes in the Sudetes Mts. in Poland: Mały Staw (MS) and Wielki Staw (WS). Cores 882 cm long (MS) and 1100 cm long (WS) taken from the centre of each lake in 1982 were used to study the long-term acidification history of these lakes. Changes in vegetation indicate that the initial phase of MS started at the end of the Pleistocene. WS sediments began to accumulate shortly after that, at the beginning of the Holocene. The majority of the diatom assemblages are typical of oligotrophic acidic lakes located in alpine and arctic regions. A pH reconstruction based on diatoms (DI-pH) showed long-term acidification dating to almost the beginning of the lakes’ existence. Natural acidification began after the deglaciation, and the most intensive acidification continued to the end of the mid-Holocene. Through the whole period studied, pH decreased by 1.4 in MS and 0.9 in WS. After a period of relatively stable lake water pH, it decreased rapidly during the last few decades of the 20th century, due to anthropogenic pollution: pH declined by 0.7 in MS and 0.3 in WS. Mały Staw, being shallower, smaller, and with a larger drainage basin than Wielki Staw, is more sensitive to acid deposition; this accounts for the difference in pH.
format Article in Journal/Newspaper
author Sienkiewicz Elwira
author_facet Sienkiewicz Elwira
author_sort Sienkiewicz Elwira
title Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses
title_short Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses
title_full Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses
title_fullStr Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses
title_full_unstemmed Post-glacial acidification of two alpine lakes (Sudetes Mts., SW Poland), as inferred from diatom analyses
title_sort post-glacial acidification of two alpine lakes (sudetes mts., sw poland), as inferred from diatom analyses
publisher W. Szafer Institute of Botany, Polish Academy of Sciences
publishDate 2016
url https://doi.org/10.1515/acpa-2016-0002
https://doaj.org/article/7c6dcd2992d64f14b2f7b6207718e847
geographic Arctic
geographic_facet Arctic
genre Arctic
genre_facet Arctic
op_source Acta Palaeobotanica, Vol 56, Iss 1, Pp 65-77 (2016)
op_relation http://www.degruyter.com/view/j/acpa.2016.56.issue-1/acpa-2016-0002/acpa-2016-0002.xml?format=INT
https://doaj.org/toc/2082-0259
2082-0259
doi:10.1515/acpa-2016-0002
https://doaj.org/article/7c6dcd2992d64f14b2f7b6207718e847
op_doi https://doi.org/10.1515/acpa-2016-0002
container_title Acta Palaeobotanica
container_volume 56
container_issue 1
container_start_page 65
op_container_end_page 77
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