Rundqvist, Sara; Hedenås, Henrik; Sandström, Anneli; Emanuelsson, Urban; Eriksson, Håkan; Jonasson, Christer; Callaghan, Terry V (2011): (Table 1) Cover of shrub and tree species, and number of stems (>=3.5 cm DBH) during 1976-1977 and 2009-2010, respectively [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.819497, Supplement to: Rundqvist, S et al. (2011): Tree and shrub expansion over the past 34 years at the tree-line near Abisko, Sweden. AMBIO, 40(6), 683-692, https://doi.org/10.1007/s13280-011-0174-0
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Abstract:
Shrubs and trees are expected to expand in the sub-Arctic due to global warming. Our study was conducted in Abisko, sub-arctic Sweden. We recorded the change in coverage of shrub and tree species over a 32- to 34-year period, in three 50 x 50 m plots; in the alpine-tree-line ecotone. The cover of shrubs and trees (<3.5 cm diameter at breast height) were estimated during 2009-2010 and compared with historical documentation from 1976 to 1977. Similarly, all tree stems (>=3.5 cm) were noted and positions determined. There has been a substantial increase of cover of shrubs and trees, particularly dwarf birch (Betula nana), and mountain birch (Betula pubescens ssp. czerepanovii), and an establishment of aspen (Populus tremula). The other species willows (Salix spp.), juniper (Juniperus communis), and rowan (Sorbus aucuparia) revealed inconsistent changes among the plots. Although this study was unable to identify the causes for the change in shrubs and small trees, they are consistent with anticipated changes due to climate change and reduced herbivory.
Project(s):
Coverage:
Latitude: 68.350000 * Longitude: 18.817000
Date/Time Start: 1976-01-01T00:00:00 * Date/Time End: 2010-01-01T00:00:00
Minimum Elevation: 340.0 m * Maximum Elevation: 400.0 m
Event(s):
Abisko_ANS (Abisko Scientific Research Station) * Latitude: 68.350000 * Longitude: 18.817000 * Elevation Start: 340.0 m * Elevation End: 400.0 m * Location: Abisko, Lappland, northern Sweden
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Area/locality | Area | Rundqvist, Sara | plot no. | ||
| 2 | DATE/TIME | Date/Time | Geocode | |||
| 3 | Date/time end | Date/time end | Rundqvist, Sara | |||
| 4 | Betula nana, cover | B. nana cov | m2 | Rundqvist, Sara | ||
| 5 | Betula pubescens czerepanovii, cover | B. pubescens czerepanovii cov | m2 | Rundqvist, Sara | ||
| 6 | Juniperus communis, cover | J. communis cov | m2 | Rundqvist, Sara | ||
| 7 | Populus tremula, cover | P. tremula cov | m2 | Rundqvist, Sara | ||
| 8 | Salix spp., cover | Salix spp. cov | m2 | Rundqvist, Sara | ||
| 9 | Sorbus aucuparia, cover | S. aucuparia cov | m2 | Rundqvist, Sara | ||
| 10 | Trees and shrubs, cover | Trees+shrubs cov | m2 | Rundqvist, Sara | ||
| 11 | Number of stems | Stems | # | Rundqvist, Sara | >=3.5 cm DBH, B. pubescens czerepanovii | |
| 12 | Number of stems | Stems | # | Rundqvist, Sara | >=3.5 cm DBH, Salix spp. | |
| 13 | Number of stems | Stems | # | Rundqvist, Sara | >=3.5 cm DBH, S. aucuparia | |
| 14 | Number of stems | Stems | # | Rundqvist, Sara | >=3.5 cm DBH, total |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
75 data points