earticle

영어

This study was carried out to analyze the height growth of Korean red pine (Pinus densiflora), Korean white pine (Pinus koraiensis), and Japanese larch (Larix kaempferi), which are the major tree species in South Korea. Study area was targeted on the region of Gangwon and North Gyeongsang provinces, and factors of stand density, forest stand, and site were collected through the field investigation and spatial data. The factors affecting the height growth were analyzed through statistical and spatial analysis of the collected data. To figure out the effect of stand density on height growth, thinning intensity, the number of trees, and stand basal area were analyzed, and it was found that these factors did not affect height growth. Also, age, DBH, and crown width were analyzed to figure out the effect of forest stand investigation, and scatter plots were displayed and a correlation analysis was applied for checking the characteristic of height growth. As a result, correlation coefficients of age, DBH, crown width with height growth were all high. Site factor was analyzed through Analysis of Variance and correlation analysis by dividing into the aspect, elevation, slope, and topography. Topography was analyzed by classifying into ridge and valley. As a result, height growth was affected by aspect and elevation, but was not affected by slope. Ridge distance was a positive correlation to height growth, and so height growth have a tendency to increase as a tree moves away from ridge. Valley distance was a negative correlation to height growth, and so height growth have a tendency to decrease as a tree moves away from valley. This means site factors influence height growth.