Site consists of a large set of mountain spruce forest monitoring plots (388) that have been monitored since 2008. The main focus of monitoring is the effect of cessation or reduction of forest management on vegetation dynamics and the recovery of forest from windthrow and/or bark beetle-induced die off. Each plot of the monitoring network (500 m2) is studied using the Field-Map technology and the following characteristics are measured: plot characteristics, location and characteristics of all trees (living, dead), stumps and dead wood, numbers and quantitative / qualitative characteristics of natural regeneration and plant community composition.

The type of forests include Calamagrostis spruce forests (L9.1), Bog and waterlogged spruce forests (L9.2), and Athyrium spruce forests (L9.3).