Maximum Stem Number and Mortality Model for Even-Aged Pinus Densiflora Stand in Kangwon-Province, Korea.
Woo-Kyun Lee, Jeong-Bo Seo and Sang-Won Bae

 

ABSTRACT : Sterba's theory that stem number maintaining maximum basal area per ha is maximum stem number of a stand, had been applied to data from 103 temporary plots in even-aged Pinus densi/lora stands in Kangwon province, Korea and a maximum stem number and mortality model was prepared. DBH growth model which estimates dbh with the independent variables of stem number per ha and dominant height shows the good statistical performance, and explains well differences in dbh growth that would be caused by stem number per ha and dominant height. Basal area model derived from dbh growth model also explains well differences in basal area according to stem number per ha and dominant height. The maximum stem number curve. which is derived from stem number per ha at maximum
basal area for dominant height and dbh, represents well the upper range of stem number per ha observed. And maximum stand density index derived from the maximum stem number model for dbh could be used for the index of maximum potential density of a stand. The maximum stem number model and maximum stand density index in this study were not based on stand data with maximum density but based on the temporary data from stands with various density. This maximum stem number model can be applied to the estimation of mortality and maximum potential volume.

 

Key words : Sterba's theory, maximum basal area, maximum stem number, maximum stana
density index, Pinus densiflora