Study on community structure and self-sustaining mechanism of broad-leaved/Korean pine forests in northeast China

Abstract

The regeneration, tree growth, and community structure and dynamics were studied in old-growth Korean pine (Pinus koraienisis) forest The results showed that the formation of tree fonn and growth character have been obviously related with the gap-phase regeneration. The ecological effects of the gap suppress the tree growth in diameter, and control that young tree stem fork in early stage. The heterogeneity of tree growth in time and space is the results of high quality in tree height and diameter. The hardwood species which mixed with Korean pine have different ecological effect on regeneration and tree growth of Korean pine in the early stage of gap reconstructing. Community dynamics depends on tree gaps occurs, in which a “cyclic succession” between Korean pine and hard wood species may occurs. The process would take about 200 years.

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