Silvaboreal - Archive
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Sample: Flakaliden Soil warming exp. 1998
Details
Sample type
Leaves/Needles
Sampled
1998
Available
Yes
Description
Two different age classes of spruce needles (C+0- and C+1-needles) collected in the soil warming experiment at Flakaliden 1998-09-18. Samples were taken on the seventh branch whorl and has been analysed. Samples no. Fla 1755-1762 = remains of ground C+0-needles. Samples no. Fla 1587-1630 = remains of ground C+1-needles. A key list for the analysed samples is available for download.
Background information
The soil warming experiment, which started in 1994 and ended in the autumn of 2012, was conducted on two treatments: irrigation with water (I) and irrigation with liquid fertiliser (IL), with two control plots and two heated plots on each treatment, a total of eight plots (size 10x10 m). The ground was heated by heating cables installed between humus and mineral soil. Heated plots were kept 5°C warmer than the control areas during the vegetation period. Soil warming started one month before normal spring thaw. In the autumn, when the control areas froze, the heating was reduced by 1°C per week, which means that the frost-free period was extended around two months per year.
Keywords
soil warming
Associated trials
Events
- Miscellaneous 2004: These samples were first stored at The Department of Forest Production Ecology, SLU Uppsala. In 2004 the samples were sent to SilvaBoreal-Archive for longtime storage.
Location and ownership
Organisation
SLU - ESF - Vindelns försöksparker
Location
Östvallen → Attic (Not temperature regulated)
Contact
Ulla Nylander
ulla.nylander@slu.se