Silvicultural measures for forests under tree line (climax Norway spruce forests): Non-intervention management

Karel Matějka

Non-intervention management (spontaneous development) is the only way to protect the natural ecosystem processes, and with them all organisms that are linked to these processes. Spontaneous development can be applied in all positions in varying degrees. Primarily, it always depends on the conservation goal. From this perspective, this measure is of increasing importance with increasing altitude with the key position under the climax Norway spruce (Picea abies) forests. Principled process in the context of spontaneous development is succession, especially secondary succession.

In the Czech Republic, it is frequently applied an effort to limit the non-intervention management solely on the development processes in gap dynamics (small development cycles) in space and time. It is concluded that territory left to spontaneous development should be the optimal prerequisite in representation of all three stages (recruitment, optima and decay) of sufficient size, which is specific for each type of forest. It may be truth in positions (altitudinal zones), where gap dynamics is main type of the forest development. It is not applicable under conditions of frequent large-scale disturbances as we can see in mountain Norway spruce forests.

The text also discussed issues as affecting of the surrounding forest and the conditions and procedures for the declaration of an area under non-intervention approach. Declaration non-intervention territory is only a political decision. Spontaneous development may be applied to any area in point of view of natural conditions.

 

Project Silviculture measures to improve forest biodiversity in protected areas
Project number EHP-CZ02-OV-1-015-2014, Supported by grant from Iceland, Liechtenstein and Norway