Impact of Patial Releases in Mixed Korean Pine-Broadleaved Stands on the Natural Regeneration Processes

Abstract

Using dendrochronological analysis we restored disturbance history of mixed Korean pine-broadleaved stands in the South and Middle Sikhote-Alin mountain range on two permanent sample plots. Results of the analysis showed that partial releases occurred in stands history simultaneously on both plots, with intervals of about 40 years, and growth release revealed for trees in all layers. The periodical enhance in environmental conditions leads to stepped development of trees, i.e. periods of fast growth alternate with long suppressions.

Keywords

• conifer-broadleaved forests
• partial stand disturbance
• forest regeneration
• dendrochronology
• Sikhote-Alin mountain range