Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert
The McMurdo Dry Valleys are one of the most arid environments on Earth. Over the soil landscape for the majority of the year, biological and ecosystem processes in the dry valleys are constrained by the low temperatures and limited availability of water. The prevalence of these physical limitations...
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Norwegian Polar Institute
2011
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ftdoajarticles:oai:doaj.org/article:5a6b4d3024eb4211b1bef6ab6cd6c265 2023-05-15T16:37:48+02:00 Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert Becky A. Ball J.E. Barrett Mike N. Gooseff Ross A. Virginia Diana H. Wall 2011-12-01T00:00:00Z https://doi.org/10.3402/polar.v30i0.14555 https://doaj.org/article/5a6b4d3024eb4211b1bef6ab6cd6c265 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/14555/pdf_1 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.14555 0800-0395 1751-8369 https://doaj.org/article/5a6b4d3024eb4211b1bef6ab6cd6c265 Polar Research, Vol 30, Iss 0, Pp 1-10 (2011) Water pulse climate change polar desert International Polar Year discrete warming events soil biogeochemistry Environmental sciences GE1-350 Oceanography GC1-1581 article 2011 ftdoajarticles https://doi.org/10.3402/polar.v30i0.14555 2022-12-31T04:45:03Z The McMurdo Dry Valleys are one of the most arid environments on Earth. Over the soil landscape for the majority of the year, biological and ecosystem processes in the dry valleys are constrained by the low temperatures and limited availability of water. The prevalence of these physical limitations in controlling biological and ecosystem processes makes the dry valleys a climate-sensitive system, poised to experience substantial changes following projected future warming. Short-duration increases in summer temperatures are associated with pulses of water from melting ice reserves, including glaciers, snow and permafrost. Such pulses alter soil geochemistry by mobilizing and redistributing soil salts (via enhanced weathering, solubility and mobility), which can alter habitat suitability for soil organisms. Resulting changes in soil community composition or distribution may alter the biogeochemical processes in which they take part. Here, we review the potential impacts of meltwater pulses and present new field data documenting instances of meltwater pulse events that result from different water sources and hydrological patterns, and discuss their potential influence on soil biology and biogeochemistry. We use these examples to discuss the potential impacts of future climate change on the McMurdo Dry Valley soil ecosystem. Article in Journal/Newspaper Ice International Polar Year McMurdo Dry Valleys permafrost polar desert Polar Research Directory of Open Access Journals: DOAJ Articles McMurdo Dry Valleys Polar Research 30 1 14555 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Water pulse climate change polar desert International Polar Year discrete warming events soil biogeochemistry Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Water pulse climate change polar desert International Polar Year discrete warming events soil biogeochemistry Environmental sciences GE1-350 Oceanography GC1-1581 Becky A. Ball J.E. Barrett Mike N. Gooseff Ross A. Virginia Diana H. Wall Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
topic_facet |
Water pulse climate change polar desert International Polar Year discrete warming events soil biogeochemistry Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
The McMurdo Dry Valleys are one of the most arid environments on Earth. Over the soil landscape for the majority of the year, biological and ecosystem processes in the dry valleys are constrained by the low temperatures and limited availability of water. The prevalence of these physical limitations in controlling biological and ecosystem processes makes the dry valleys a climate-sensitive system, poised to experience substantial changes following projected future warming. Short-duration increases in summer temperatures are associated with pulses of water from melting ice reserves, including glaciers, snow and permafrost. Such pulses alter soil geochemistry by mobilizing and redistributing soil salts (via enhanced weathering, solubility and mobility), which can alter habitat suitability for soil organisms. Resulting changes in soil community composition or distribution may alter the biogeochemical processes in which they take part. Here, we review the potential impacts of meltwater pulses and present new field data documenting instances of meltwater pulse events that result from different water sources and hydrological patterns, and discuss their potential influence on soil biology and biogeochemistry. We use these examples to discuss the potential impacts of future climate change on the McMurdo Dry Valley soil ecosystem. |
format |
Article in Journal/Newspaper |
author |
Becky A. Ball J.E. Barrett Mike N. Gooseff Ross A. Virginia Diana H. Wall |
author_facet |
Becky A. Ball J.E. Barrett Mike N. Gooseff Ross A. Virginia Diana H. Wall |
author_sort |
Becky A. Ball |
title |
Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
title_short |
Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
title_full |
Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
title_fullStr |
Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
title_full_unstemmed |
Implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
title_sort |
implications of meltwater pulse events for soil biology and biogeochemical cycling in a polar desert |
publisher |
Norwegian Polar Institute |
publishDate |
2011 |
url |
https://doi.org/10.3402/polar.v30i0.14555 https://doaj.org/article/5a6b4d3024eb4211b1bef6ab6cd6c265 |
geographic |
McMurdo Dry Valleys |
geographic_facet |
McMurdo Dry Valleys |
genre |
Ice International Polar Year McMurdo Dry Valleys permafrost polar desert Polar Research |
genre_facet |
Ice International Polar Year McMurdo Dry Valleys permafrost polar desert Polar Research |
op_source |
Polar Research, Vol 30, Iss 0, Pp 1-10 (2011) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/14555/pdf_1 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.14555 0800-0395 1751-8369 https://doaj.org/article/5a6b4d3024eb4211b1bef6ab6cd6c265 |
op_doi |
https://doi.org/10.3402/polar.v30i0.14555 |
container_title |
Polar Research |
container_volume |
30 |
container_issue |
1 |
container_start_page |
14555 |
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1766028104899231744 |