Abstract
This study was carried out to examine the growth of Quercus acutissima seedlings planted in various levels of strip clear-cutting(uncut, 6m$\times$50m, 10m$\times$50m, 20m$\times$50m) with seedling treatments(fertilization, paper mulching, shelter, Pisolithus tinctorius innoculation, control) in Pinus rigida plantations. The study site was located in Goksung-Gun, Jeollanam-Do. Root collar diameter, height and volume growth of the seedlings differed significantly between various levels of strip clear-cutting and seedling treatments(p<0.05). The growth of seedling root collar diameter was better in the 10m$\times$50m strip clear-cutting treatment(15.6mm) than in the 20m$\times$50m(14.9mm), 6m$\times$50m(12.8mm) strip clear-cutting treatments and the uncut treatments(9.8mm). The height of seedling was highest in the 10m$\times$50m strip clear-cutting treatment(121.4cm), followed by the 20m$\times$50m(115.1cm), the 6m$\times$50m(96.9cm) and the uncut treatments(86.4mm). The volume growth of seedlings was also highest in the 10m$\times$50m strip clear-cutting treatment(151.6$cm^{3}$), followed by the 20m×50m (98.6$cm^{3}$) and the 6m$\times$50m strip clear-cutting treatments (65.3$cm^{3}$). Root collar diameter, height and volume growth were superior to fertilization among seedling treatments. Seedling growth in the control did not differ in other seedling treatments such as paper mulching, shelter and P. t. innoculation. Seedling mortality rates were lower in the 6m×50m strip clear-cutting(3.7%) than in the 10m$\times$50m(13.3%) and the 20m×50m strip clear-cutting treatments(15.7%). Also shelter treatments of seedling reduced seedling mortality rates(6.5%) compared with other seedling treatments(>10%). The results indicate that oak regeneration in various levels of strip-clearcutting in Pinus rigida plantations should apply fertilizer with cutting intensity between 10m and 20m strip width