海上の森におけるアカマツ-広葉樹二次林の群集動態と樹木間競争

概要

論文の詳細を見る
To elucidate the machanisms of community dynamics and tree competition, we investigated the stand structure and the dynamics of secondary forest dominated by Pinus desiflora in Kaisyo Forest, near Nagoya City. We established a l-ha permanent plot in 2003, and investigated for all stems ≥ 5 cm in diameter at breast height (dbh) in the plot. In 2005 and 2007, all living stems were re-censused. There were 30 species in the plot, with stem density of 2294 stems per ha. Pinus densiflora, Ilex pedunculosa, Quercus serrata and Clethra barbinervis co-dominated in the stand. There is no significant difference between the mortality and recruitment rate of stems during the 4 years period. The mortality rate of stems and the growth rate of dbh were size-dependent, increasing with size class. The growth of Ilex pedunculosa was affected by the abundance of Pinus densiflora. Our results indicate that tree competition occurs among a few species in part.
名古屋産業大学の論文