The unseen iceberg: plant roots in arctic tundra
Arctic tundra is characterized by short-statured plant communities underlain by carbon (C)-rich soils and permafrost. Ecosystem C and nutrient cycles in tundra are driven by complex interactions between plants and their environment. However, root dynamics are one of the least understood aspects of p...
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Online Access: | http://www.osti.gov/servlets/purl/1185387 https://www.osti.gov/biblio/1185387 https://doi.org/10.1111/nph.13003 |
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ftosti:oai:osti.gov:1185387 2023-07-30T04:00:59+02:00 The unseen iceberg: plant roots in arctic tundra Iversen, Colleen M. Sloan, Victoria L. Sullivan, Patrick F. Euskirchen, Eugenie S. McGuire, A. David Norby, Richard J. Walker, Anthony P. Warren, Jeffrey M. Wullschleger, Stan D. 2023-06-22 application/pdf http://www.osti.gov/servlets/purl/1185387 https://www.osti.gov/biblio/1185387 https://doi.org/10.1111/nph.13003 unknown http://www.osti.gov/servlets/purl/1185387 https://www.osti.gov/biblio/1185387 https://doi.org/10.1111/nph.13003 doi:10.1111/nph.13003 58 GEOSCIENCES 54 ENVIRONMENTAL SCIENCES 2023 ftosti https://doi.org/10.1111/nph.13003 2023-07-11T08:59:43Z Arctic tundra is characterized by short-statured plant communities underlain by carbon (C)-rich soils and permafrost. Ecosystem C and nutrient cycles in tundra are driven by complex interactions between plants and their environment. However, root dynamics are one of the least understood aspects of plant growth in the Arctic. We synthesized available literature on tundra roots and discussed their representation in terrestrial biosphere models. Belowground biomass in tundra ecosystems can be an order of magnitude larger than aboveground biomass. Data on root production and turnover in tundra is sparse, limiting our understanding of the controls over root dynamics in these systems. Roots are shallowly distributed in the thin layer of soil that thaws each year, and are often found in the organic horizon at the soil surface. Species-specific differences in root distribution, mycorrhizal colonization, and resource partitioning may affect plant species competition under changing climatic conditions. Model representation of belowground processes has increased in complexity over recent years, but data are desperately needed to fill the gaps in model treatment of tundra roots. Future research should focus on estimates of root production and lifespan, and interactions between roots and the surrounding soil across the diversity of tundra ecosystems in the Arctic. Other/Unknown Material Arctic Iceberg* permafrost Tundra SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic New Phytologist 205 1 34 58 |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
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58 GEOSCIENCES 54 ENVIRONMENTAL SCIENCES |
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58 GEOSCIENCES 54 ENVIRONMENTAL SCIENCES Iversen, Colleen M. Sloan, Victoria L. Sullivan, Patrick F. Euskirchen, Eugenie S. McGuire, A. David Norby, Richard J. Walker, Anthony P. Warren, Jeffrey M. Wullschleger, Stan D. The unseen iceberg: plant roots in arctic tundra |
topic_facet |
58 GEOSCIENCES 54 ENVIRONMENTAL SCIENCES |
description |
Arctic tundra is characterized by short-statured plant communities underlain by carbon (C)-rich soils and permafrost. Ecosystem C and nutrient cycles in tundra are driven by complex interactions between plants and their environment. However, root dynamics are one of the least understood aspects of plant growth in the Arctic. We synthesized available literature on tundra roots and discussed their representation in terrestrial biosphere models. Belowground biomass in tundra ecosystems can be an order of magnitude larger than aboveground biomass. Data on root production and turnover in tundra is sparse, limiting our understanding of the controls over root dynamics in these systems. Roots are shallowly distributed in the thin layer of soil that thaws each year, and are often found in the organic horizon at the soil surface. Species-specific differences in root distribution, mycorrhizal colonization, and resource partitioning may affect plant species competition under changing climatic conditions. Model representation of belowground processes has increased in complexity over recent years, but data are desperately needed to fill the gaps in model treatment of tundra roots. Future research should focus on estimates of root production and lifespan, and interactions between roots and the surrounding soil across the diversity of tundra ecosystems in the Arctic. |
author |
Iversen, Colleen M. Sloan, Victoria L. Sullivan, Patrick F. Euskirchen, Eugenie S. McGuire, A. David Norby, Richard J. Walker, Anthony P. Warren, Jeffrey M. Wullschleger, Stan D. |
author_facet |
Iversen, Colleen M. Sloan, Victoria L. Sullivan, Patrick F. Euskirchen, Eugenie S. McGuire, A. David Norby, Richard J. Walker, Anthony P. Warren, Jeffrey M. Wullschleger, Stan D. |
author_sort |
Iversen, Colleen M. |
title |
The unseen iceberg: plant roots in arctic tundra |
title_short |
The unseen iceberg: plant roots in arctic tundra |
title_full |
The unseen iceberg: plant roots in arctic tundra |
title_fullStr |
The unseen iceberg: plant roots in arctic tundra |
title_full_unstemmed |
The unseen iceberg: plant roots in arctic tundra |
title_sort |
unseen iceberg: plant roots in arctic tundra |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1185387 https://www.osti.gov/biblio/1185387 https://doi.org/10.1111/nph.13003 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Iceberg* permafrost Tundra |
genre_facet |
Arctic Iceberg* permafrost Tundra |
op_relation |
http://www.osti.gov/servlets/purl/1185387 https://www.osti.gov/biblio/1185387 https://doi.org/10.1111/nph.13003 doi:10.1111/nph.13003 |
op_doi |
https://doi.org/10.1111/nph.13003 |
container_title |
New Phytologist |
container_volume |
205 |
container_issue |
1 |
container_start_page |
34 |
op_container_end_page |
58 |
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1772811694363377664 |