The Effects of Ecological Restoration Confirmed in the Pinus koraiensis Plantation

Developmental process of vegetation over years after afforestation was analyzed in the Korean pine (Pinus koraiensis) plantations with different stand ages. Height and diameter of Korean pine increased rapidly until 27 years after afforestation and tended to be blunted since then. Density of Korean pine tended to be reduced with the increase of stand age. As the result of stand ordination of Korean pine plantations with different ages based on floristic composition, Korean pine plantations showed a changing depending on stand age but a difference from the reference, Mongolian oak (Quercus mongolica) stands. Korean pine plantations showed the trend to be usually succeeded to the native vegetation dominated by ash (Fraxinus rhynchophylla) but partially by Mongolian oak as the results of analysis based on the frequency distribution by diameter class