Survival and Growth of Konara Oak(Quercus serrata Thunb.)Seedlings in an abandoned Coppice Forest

摘要: Survival and growth of konara oak (Quercus serrata) seedlings were examined on the forest floor a coppice stand in Mitaka, Tokyo, for 5 yr (1976–1980) after exclusion human management. Attention was mainly focused large cohort derived from bumper acorn crop 1975. Seedlings began to branch second year, although some did not during whole 5-yr period. Branched seedling showed higher survival greater weight 1980 than unbranched seedlings. Many branched had lost an orthotropic leader shoot spread their branches laterally, suggesting response efficient light-capture. As seedlings, size relationship between leaf area stem length developing every year dependent size. A small gave priority enlargement area, whereas elongation. Yearly variations mortality elongation related amount precipitation. Both initial height germinated positively correlated with five years. Five-year positive correlation light intensity at site but negative extent predation. Sprouts shrub species grew vigorously became much taller observation The characteristics forest-floor discussed relation regeneration forests general.