Effect of Forest Composition and Dynamics of Light on Seedlings and Saplings of Korean pine (Pinus koraiensis) in Northeastern China

摘要

Natural regeneration of Korean pine (Pinus koraiensis Siebold (2) our spatialanalysis indicated that seedlings are negatively correlated with saplings and exhibit a higher degree ofclumping than saplings. Relationships of seedlings with mature pines and all sizes of other mature treesappeared random, whereas saplings were negatively associated with small, medium and large mature trees.Our findings suggest that the effect of forest composition on regeneration mainly occurred before the leafexpansion in late spring.