Self-thinning in Prince Rupprecht's Larch (Larix principis-rupprechtii Mayr) Stands

概要

論文の詳細を見る
Prince Rupprecht's larch (Larix principis-rupprechtii Mayr) stands growing at three different densities were investigated to determine characteristics of self-thinning. Tree density decreased with increasing stand age, and the higher density stand had higher mortality than the lower one. Mean stem volume incrcased with increasing stand age and the higher density stand had higher relative growth rate of mean stem volume than the lower one. Mean stem volume (ν) increased with decreasing tree density (ρ), resulting in self-thinning line being expressed as ln ν=In K-αln ρ, where K and α are coefficients. The slope of self-thinning line, -α, over the whole study period for all sites was similar with a mean value of-2.13. The ν-ρ trajectories before reaching the self-thinning slope of-3/2 could be described by Tadaki's model. The Phase sell-thinning line tended to decrease toward a slope of-3/2 with increasing stand age, which trends agreed with those of the Published data of a Pinus strobus stand and P. densiflora stands.
日本森林学会の論文
1997-11-16