Sample: Flakaliden Soil warming exp. 2002

Details

Sample type

Leaves/Needles

Sampled

2002

Available

Yes

Description

Spruce needles samples collected 2002-10-23 in the soil warming experiment at Flakaliden. Unground C+0-needles and remains of ground C+1-needles taken on the seventh branch whorl are stored. The ground C+1-needles are pooled samples from five trees per plot. C+1-needles with sample no. Fla 2439-2446 has been analysed. A key list of sample numbers 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

Location and ownership

Organisation

SLU - ESF - Vindelns försöksparker

Location

Östvallen → Attic (Not temperature regulated)

Contact

Ulla Nylander
ulla.nylander@slu.se