Tree stand characteristic and structure on the embankment slope after 11 years from certified native species seedlings' plantation by mainly Pinus densiflora and Quercus serrata

Abstract

This study aims to clarify the stand structure on the embankment slope which has been 11 years since the initial planting of certified native species seedlings. On the survey plots (total 300 m²), a total of 29 vascular plant species, where 14 species of tree plants, were confirmed. From plotting the tree height distribution, a double layer structure was confirmed, in which the upper layer was dominated by P.densiflora, and the lower by Q.serrata. It was suggested P.densiflora suppress the growth of other plants in the lower layer; on the other hand, improvement of light environment was predicted with decline of P.densiflora..