Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica)
Concentrations of major ions, silicate and nutrients (total N and P) were measured in samples of surface water from 28 lakes in ice-free areas of northern Victoria Land (East Antarctica). Sixteen lakes were sampled during austral summers 2001/02, 2003/04, 2004/05 and 2005/06 to assess temporal varia...
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Online Access: | http://hdl.handle.net/11365/6644 https://doi.org/10.1007/s00027-008-8026-0 |
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ftunivsiena:oai:usiena-air.unisi.it:11365/6644 2024-04-21T07:51:23+00:00 Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) BORGHINI, F. COLACEVICH, A. CARUSO, T. BARGAGLI, R. Borghini, F. Colacevich, A. Caruso, T. Bargagli, R. 2008 STAMPA http://hdl.handle.net/11365/6644 https://doi.org/10.1007/s00027-008-8026-0 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000256426400004 volume:70 issue:2 firstpage:134 lastpage:141 numberofpages:8 journal:AQUATIC SCIENCES http://hdl.handle.net/11365/6644 doi:10.1007/s00027-008-8026-0 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-44649158820 info:eu-repo/semantics/closedAccess Continental Antarctica TN spatio-temporal variation info:eu-repo/semantics/article 2008 ftunivsiena https://doi.org/10.1007/s00027-008-8026-0 2024-03-28T00:42:44Z Concentrations of major ions, silicate and nutrients (total N and P) were measured in samples of surface water from 28 lakes in ice-free areas of northern Victoria Land (East Antarctica). Sixteen lakes were sampled during austral summers 2001/02, 2003/04, 2004/05 and 2005/06 to assess temporal variation in water chemistry. Although samples showed a wide range in ion concentrations, their composition mainly reflected that of seawater. In general, as the distance from the sea increased, the input of elements from the marine environment (through aerosols and seabirds) decreased and there was an increase in nitrate and sulfate concentrations. Antarctic lakes lack outflows and during the austral summer the melting and/or ablation of ice cover, water evaporation and leaching processes in dry soils determine a progressive increase in water ion concentrations. During the five-year monitoring survey, no statistically significant variation in the water chemistry were detected, except for a slight (hardly significant) increase in TN concentrations. However, Canonical Correspondence Analysis (CCA) indicated that other factors besides distance from the sea, the presence of nesting seabirds, the sampling time and percentage of ice cover affect the composition of water in Antarctic cold desert environments. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Victoria Land Università degli Studi di Siena: USiena air Aquatic Sciences 70 2 134 141 |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Continental Antarctica TN spatio-temporal variation |
spellingShingle |
Continental Antarctica TN spatio-temporal variation BORGHINI, F. COLACEVICH, A. CARUSO, T. BARGAGLI, R. Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) |
topic_facet |
Continental Antarctica TN spatio-temporal variation |
description |
Concentrations of major ions, silicate and nutrients (total N and P) were measured in samples of surface water from 28 lakes in ice-free areas of northern Victoria Land (East Antarctica). Sixteen lakes were sampled during austral summers 2001/02, 2003/04, 2004/05 and 2005/06 to assess temporal variation in water chemistry. Although samples showed a wide range in ion concentrations, their composition mainly reflected that of seawater. In general, as the distance from the sea increased, the input of elements from the marine environment (through aerosols and seabirds) decreased and there was an increase in nitrate and sulfate concentrations. Antarctic lakes lack outflows and during the austral summer the melting and/or ablation of ice cover, water evaporation and leaching processes in dry soils determine a progressive increase in water ion concentrations. During the five-year monitoring survey, no statistically significant variation in the water chemistry were detected, except for a slight (hardly significant) increase in TN concentrations. However, Canonical Correspondence Analysis (CCA) indicated that other factors besides distance from the sea, the presence of nesting seabirds, the sampling time and percentage of ice cover affect the composition of water in Antarctic cold desert environments. |
author2 |
Borghini, F. Colacevich, A. Caruso, T. Bargagli, R. |
format |
Article in Journal/Newspaper |
author |
BORGHINI, F. COLACEVICH, A. CARUSO, T. BARGAGLI, R. |
author_facet |
BORGHINI, F. COLACEVICH, A. CARUSO, T. BARGAGLI, R. |
author_sort |
BORGHINI, F. |
title |
Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) |
title_short |
Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) |
title_full |
Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) |
title_fullStr |
Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) |
title_full_unstemmed |
Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica) |
title_sort |
temporal variation in the water chemistry of northern victoria land lakes (antarctica) |
publishDate |
2008 |
url |
http://hdl.handle.net/11365/6644 https://doi.org/10.1007/s00027-008-8026-0 |
genre |
Antarc* Antarctic Antarctica East Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000256426400004 volume:70 issue:2 firstpage:134 lastpage:141 numberofpages:8 journal:AQUATIC SCIENCES http://hdl.handle.net/11365/6644 doi:10.1007/s00027-008-8026-0 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-44649158820 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00027-008-8026-0 |
container_title |
Aquatic Sciences |
container_volume |
70 |
container_issue |
2 |
container_start_page |
134 |
op_container_end_page |
141 |
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