Collection: Flakaliden Soil warming exp. 2008-2013

Details

Sample type

Litter fall

Sampled

Between 2008 and 2013

Amount

4 cardboard moving boxes

Available

Yes

Description

Dried litter fall collected in the soil warming experiment at Flakaliden. The litter fall has been sorted into three or four fractions during the winter seasons of different years (three fractions = needles, twigs and cones, other, four fractions = needles, twigs, cones, other). Collection periods: • 2008-08-05--2008-10-15. Sorted and weighed into three fractions (2009). • 2008-10-15--2009-05-14. Sorted and weighed into three fractions (2009). • 2009-05-14--2009-10-06. Sorted and weighed into three fractions (2009). • 2009-10-06--2010-05-26. Sorted and weighed into three fractions (2012). • 2010-05-30--2010-09-30. Sorted and weighed into three fractions (2012). • 2010-09-30--2011-05-12. Sorted and weighed into three fractions (2012). • 2011-05-12--2011-09-19. Sorted and weighed into three fractions (2012). • 2011-09-19--2012-05-22. Sorted and weighed into four fractions (2021). • 2012-05-22--2012-10-05. Sorted and weighed into four fractions (2021). • 2012-10-05--2013-05-24. Unprocessed.

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.

Associated trials

Location and ownership

Organisation

SLU - ESF - Vindelns försöksparker

Location

Östvallen → Attic (Not temperature regulated)

Contact

Ulla Nylander
ulla.nylander@slu.se