Martin Simard, Nicolas Lecomte, Yves Bergeron, Pierre Y. Bernier, and David Paré. 2007. Forest productivity decline caused by successional paludification of boreal soils. Ecological Applications 17:1619–1637.

Appendix E. Relationship between soil organic layer thickness and site index for individual trees (n = 131) in the 23 chronosequence stands.

The regression equation between the site index (SI) and organic layer thickness (OLt) is log SI = -0.00458 OLt + 0.93189 (R² = 0.20, F = 32.0, P < 0.0001).