Sammanfattning

The dendrochronological use of the parameter maximum density (MXD) in Pinus Sylvestris L., at high latitudes, has provided valuable insights into past summer temperature variations. Few long MXD chronologies, from climatically coherent regions, exist today, with the exception being in northern Europe. Five, 500-year-long, Fennoscandian, MXD chronologies were compared with regard to their common variability and climate sensitivity. They were used to test Signal-free standardization techniques, to improve inferences of low-frequency temperature variations. Climate analysis showed that, in accordance with previous studies on MXD in Fennoscandia, the summer temperature signal is robust (R (2) > 50 %) and reliable over this climatically coherent region. A combination of Individual standardization and regional curve standardization is recommended to refine long-term variability from these MXD chronologies and relieve problems arising from low replication and standardization end-effects.

Publicerad i

Theoretical and Applied Climatology
2013, Volym: 113, nummer: 3-4, sidor: 697-710
Utgivare: SPRINGER WIEN

SLU författare

• Gunnarson, Björn

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

• Josefsson, Torbjörn

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

• Östlund, Lars

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Skogsvetenskap
Klimatforskning


Publikationens identifierare

DOI: https://doi.org/10.1007/s00704-012-0787-7

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/54439