Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution
Spatial heterogeneity affects plant performance and is influenced by plants, but the scale at which fine roots react to or generate spatial heterogeneity has received little attention. Fine roots might be expected to respond to heterogeneity at a scale comparable to their diameter (mm), but studies...
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ftdryad:oai:v1.datadryad.org:10255/dryad.120444 2023-05-15T14:24:46+02:00 Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution Träger, Sabrina Wilson, Scott D. Sweden Låktåjåkka 2016-07-14T14:53:15Z http://hdl.handle.net/10255/dryad.120444 https://doi.org/10.5061/dryad.5s3v5 unknown doi:10.5061/dryad.5s3v5/1 doi:10.1111/1365-2435.12721 doi:10.5061/dryad.5s3v5 Träger S, Wilson SD (2016) Root heterogeneity along an arctic elevational gradient: the importance of resolution. Functional Ecology 31(2): 480-487. 0269-8463 http://hdl.handle.net/10255/dryad.120444 Article 2016 ftdryad https://doi.org/10.5061/dryad.5s3v5 https://doi.org/10.5061/dryad.5s3v5/1 https://doi.org/10.1111/1365-2435.12721 2020-01-01T15:37:19Z Spatial heterogeneity affects plant performance and is influenced by plants, but the scale at which fine roots react to or generate spatial heterogeneity has received little attention. Fine roots might be expected to respond to heterogeneity at a scale comparable to their diameter (mm), but studies to date have been conducted at much coarser resolutions (cm – m). Here we quantify root heterogeneity in contrasting habitats with special attention to the influence of resolution. We measured fine root length heterogeneity at resolutions ranging from 1 to 300 mm2, at four elevations along an arctic alpine gradient from 500 m a.s.l. (forest) to 1100 m (tundra). We calculated the magnitude of heterogeneity as the coefficient of variation of root length, and the scale of heterogeneity using semivariance analysis. The magnitude of heterogeneity was about twofold greater at fine than coarse resolution. Further, the magnitude of heterogeneity was generally greatest at the highest elevation, suggesting that soil at 1100 m was less evenly occupied by plant roots than soils at lower elevations. The exception to this was at the 1 mm2 resolution, for which the magnitude of heterogeneity did not vary with elevation, possibly because heterogeneity at this scale is related to ecophysiological processes common to all vegetation types. The scale of root length heterogeneity increased significantly with resolution coarseness, suggesting that roots respond to or generate patchiness at small scales that have not previously been examined. In contrast, the scale of heterogeneity did not vary significantly with elevation and the accompanying turnover in growth form. Our results suggest that roots in four vegetation types respond to or generate very fine scales of spatial heterogeneity, including scales much smaller than those that have previously been examined. Both the magnitude and scale of heterogeneity varied with sampling resolution, suggesting resolutions as small as a few millimetres are relevant to studies of spatial root interactions and below-ground processes. Article in Journal/Newspaper Arctic Arctic Tundra Dryad Digital Repository (Duke University) Arctic |
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Dryad Digital Repository (Duke University) |
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description |
Spatial heterogeneity affects plant performance and is influenced by plants, but the scale at which fine roots react to or generate spatial heterogeneity has received little attention. Fine roots might be expected to respond to heterogeneity at a scale comparable to their diameter (mm), but studies to date have been conducted at much coarser resolutions (cm – m). Here we quantify root heterogeneity in contrasting habitats with special attention to the influence of resolution. We measured fine root length heterogeneity at resolutions ranging from 1 to 300 mm2, at four elevations along an arctic alpine gradient from 500 m a.s.l. (forest) to 1100 m (tundra). We calculated the magnitude of heterogeneity as the coefficient of variation of root length, and the scale of heterogeneity using semivariance analysis. The magnitude of heterogeneity was about twofold greater at fine than coarse resolution. Further, the magnitude of heterogeneity was generally greatest at the highest elevation, suggesting that soil at 1100 m was less evenly occupied by plant roots than soils at lower elevations. The exception to this was at the 1 mm2 resolution, for which the magnitude of heterogeneity did not vary with elevation, possibly because heterogeneity at this scale is related to ecophysiological processes common to all vegetation types. The scale of root length heterogeneity increased significantly with resolution coarseness, suggesting that roots respond to or generate patchiness at small scales that have not previously been examined. In contrast, the scale of heterogeneity did not vary significantly with elevation and the accompanying turnover in growth form. Our results suggest that roots in four vegetation types respond to or generate very fine scales of spatial heterogeneity, including scales much smaller than those that have previously been examined. Both the magnitude and scale of heterogeneity varied with sampling resolution, suggesting resolutions as small as a few millimetres are relevant to studies of spatial root interactions and below-ground processes. |
format |
Article in Journal/Newspaper |
author |
Träger, Sabrina Wilson, Scott D. |
spellingShingle |
Träger, Sabrina Wilson, Scott D. Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution |
author_facet |
Träger, Sabrina Wilson, Scott D. |
author_sort |
Träger, Sabrina |
title |
Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution |
title_short |
Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution |
title_full |
Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution |
title_fullStr |
Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution |
title_full_unstemmed |
Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution |
title_sort |
data from: root heterogeneity along an arctic elevational gradient: the importance of resolution |
publishDate |
2016 |
url |
http://hdl.handle.net/10255/dryad.120444 https://doi.org/10.5061/dryad.5s3v5 |
op_coverage |
Sweden Låktåjåkka |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Tundra |
genre_facet |
Arctic Arctic Tundra |
op_relation |
doi:10.5061/dryad.5s3v5/1 doi:10.1111/1365-2435.12721 doi:10.5061/dryad.5s3v5 Träger S, Wilson SD (2016) Root heterogeneity along an arctic elevational gradient: the importance of resolution. Functional Ecology 31(2): 480-487. 0269-8463 http://hdl.handle.net/10255/dryad.120444 |
op_doi |
https://doi.org/10.5061/dryad.5s3v5 https://doi.org/10.5061/dryad.5s3v5/1 https://doi.org/10.1111/1365-2435.12721 |
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