Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica
This study aimed to quantify the nitrous oxide (N2O) and methane (CH4) fluxes at sites with different vegetation covers and where bird activity was present or absent using the static chamber method, on Rip Point, Nelson Island, maritime Antarctic. The sites were soils covered by Sanionia uncinata, l...
Published in: | Polar Research |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
2015
|
Subjects: | |
Online Access: | https://polarresearch.net/index.php/polar/article/view/3245 https://doi.org/10.3402/polar.v34.23584 |
id |
ftjpolarres:oai:journals.openacademia.net:article/3245 |
---|---|
record_format |
openpolar |
spelling |
ftjpolarres:oai:journals.openacademia.net:article/3245 2024-09-09T19:10:12+00:00 Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica Neufeld, Ângela Denise Hubert de Godoi, Stefânia Guedes Pereira, Antônio Batista Bayer, Cimélio Schünemann, Andriano Luis de Carvalho Victoria, Filipe de Albuquerque, Margéli Pereira Camargo, Estefânia Vieira, Frederico Costa Beber 2015-02-03 application/pdf text/html application/epub+zip application/xml https://polarresearch.net/index.php/polar/article/view/3245 https://doi.org/10.3402/polar.v34.23584 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3245/pdf_7 https://polarresearch.net/index.php/polar/article/view/3245/html_3 https://polarresearch.net/index.php/polar/article/view/3245/_4 https://polarresearch.net/index.php/polar/article/view/3245/xml_2 https://polarresearch.net/index.php/polar/article/view/3245 doi:10.3402/polar.v34.23584 Polar Research; Vol 34 (2015) 1751-8369 Soil greenhouse gases seabirds vegetal cover maritime Antarctica info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftjpolarres https://doi.org/10.3402/polar.v34.23584 2024-06-20T23:33:17Z This study aimed to quantify the nitrous oxide (N2O) and methane (CH4) fluxes at sites with different vegetation covers and where bird activity was present or absent using the static chamber method, on Rip Point, Nelson Island, maritime Antarctic. The sites were soils covered by Sanionia uncinata, lichens, Prasiola crispa, Deschampsia antarctica and bare soil. Seabirds used the P. crispa and D. antarctica sites as nesting areas. Soil mineral N contents, air and soil temperature and water-filled pore space were measured, and the content of total organic C and particulate organic C, total N, bulk density and texture were determined to identify controlling variables of the gas emissions. The N2O and CH4 flux rates were low for all sampling events. Mean N2O flux rates ranged from 0.11±1.93 up to 21.25±22.14 µg N2O m−2 h−1 for the soils under lichen and P. crispa cover, respectively. For the CH4 fluxes, only the P. crispa site showed a low positive mean (0.47±3.61 µg CH4 m−2 h−1). The bare soil showed the greatest absorption of CH4 (−11.92±5.7 µg CH4 m−2 h−1), probably favoured by the coarse soil texture. Bare soil and S. uncinata sites had N2O accumulated emissions close to zero. Net CH4 accumulated emission was observed only at the P. crispa site, which was correlated with (p<0.001). These results indicate that seabird activity influences N2O and CH4 soil fluxes, while vegetation has little influence, and bare soil areas in maritime Antarctica could be greenhouse gas sinks.Keywords: Soil greenhouse gases; seabirds; vegetal cover; maritime Antarctica.(Published: 3 February 2015)Citation: Polar Research 2015, 34, 23584, http://dx.doi.org/10.3402/polar.v34.23584 Article in Journal/Newspaper Antarc* Antarctic Antarctica Nelson Island Polar Research Polar Research Antarctic Rip Point ENVELOPE(-58.979,-58.979,-62.238,-62.238) Rip ENVELOPE(-58.940,-58.940,-62.233,-62.233) Nelson Island ENVELOPE(-59.050,-59.050,-62.300,-62.300) Polar Research 34 1 23584 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Soil greenhouse gases seabirds vegetal cover maritime Antarctica |
spellingShingle |
Soil greenhouse gases seabirds vegetal cover maritime Antarctica Neufeld, Ângela Denise Hubert de Godoi, Stefânia Guedes Pereira, Antônio Batista Bayer, Cimélio Schünemann, Andriano Luis de Carvalho Victoria, Filipe de Albuquerque, Margéli Pereira Camargo, Estefânia Vieira, Frederico Costa Beber Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica |
topic_facet |
Soil greenhouse gases seabirds vegetal cover maritime Antarctica |
description |
This study aimed to quantify the nitrous oxide (N2O) and methane (CH4) fluxes at sites with different vegetation covers and where bird activity was present or absent using the static chamber method, on Rip Point, Nelson Island, maritime Antarctic. The sites were soils covered by Sanionia uncinata, lichens, Prasiola crispa, Deschampsia antarctica and bare soil. Seabirds used the P. crispa and D. antarctica sites as nesting areas. Soil mineral N contents, air and soil temperature and water-filled pore space were measured, and the content of total organic C and particulate organic C, total N, bulk density and texture were determined to identify controlling variables of the gas emissions. The N2O and CH4 flux rates were low for all sampling events. Mean N2O flux rates ranged from 0.11±1.93 up to 21.25±22.14 µg N2O m−2 h−1 for the soils under lichen and P. crispa cover, respectively. For the CH4 fluxes, only the P. crispa site showed a low positive mean (0.47±3.61 µg CH4 m−2 h−1). The bare soil showed the greatest absorption of CH4 (−11.92±5.7 µg CH4 m−2 h−1), probably favoured by the coarse soil texture. Bare soil and S. uncinata sites had N2O accumulated emissions close to zero. Net CH4 accumulated emission was observed only at the P. crispa site, which was correlated with (p<0.001). These results indicate that seabird activity influences N2O and CH4 soil fluxes, while vegetation has little influence, and bare soil areas in maritime Antarctica could be greenhouse gas sinks.Keywords: Soil greenhouse gases; seabirds; vegetal cover; maritime Antarctica.(Published: 3 February 2015)Citation: Polar Research 2015, 34, 23584, http://dx.doi.org/10.3402/polar.v34.23584 |
format |
Article in Journal/Newspaper |
author |
Neufeld, Ângela Denise Hubert de Godoi, Stefânia Guedes Pereira, Antônio Batista Bayer, Cimélio Schünemann, Andriano Luis de Carvalho Victoria, Filipe de Albuquerque, Margéli Pereira Camargo, Estefânia Vieira, Frederico Costa Beber |
author_facet |
Neufeld, Ângela Denise Hubert de Godoi, Stefânia Guedes Pereira, Antônio Batista Bayer, Cimélio Schünemann, Andriano Luis de Carvalho Victoria, Filipe de Albuquerque, Margéli Pereira Camargo, Estefânia Vieira, Frederico Costa Beber |
author_sort |
Neufeld, Ângela Denise Hubert |
title |
Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica |
title_short |
Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica |
title_full |
Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica |
title_fullStr |
Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica |
title_full_unstemmed |
Methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of Rip Point, Nelson Island, Antarctica |
title_sort |
methane and nitrous oxide fluxes in relation to vegetation covers and bird activity in ice-free soils of rip point, nelson island, antarctica |
publisher |
Norwegian Polar Institute |
publishDate |
2015 |
url |
https://polarresearch.net/index.php/polar/article/view/3245 https://doi.org/10.3402/polar.v34.23584 |
long_lat |
ENVELOPE(-58.979,-58.979,-62.238,-62.238) ENVELOPE(-58.940,-58.940,-62.233,-62.233) ENVELOPE(-59.050,-59.050,-62.300,-62.300) |
geographic |
Antarctic Rip Point Rip Nelson Island |
geographic_facet |
Antarctic Rip Point Rip Nelson Island |
genre |
Antarc* Antarctic Antarctica Nelson Island Polar Research |
genre_facet |
Antarc* Antarctic Antarctica Nelson Island Polar Research |
op_source |
Polar Research; Vol 34 (2015) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3245/pdf_7 https://polarresearch.net/index.php/polar/article/view/3245/html_3 https://polarresearch.net/index.php/polar/article/view/3245/_4 https://polarresearch.net/index.php/polar/article/view/3245/xml_2 https://polarresearch.net/index.php/polar/article/view/3245 doi:10.3402/polar.v34.23584 |
op_doi |
https://doi.org/10.3402/polar.v34.23584 |
container_title |
Polar Research |
container_volume |
34 |
container_issue |
1 |
container_start_page |
23584 |
_version_ |
1809824841700737024 |