@article{oai:miyazaki-u.repo.nii.ac.jp:00003351,
 author = {白井, 真紀 and 北原, 龍士 and Kitahara, Ryushi and Shirai, Maki and 北原, 龍士 and Kitahara, Ryushi},
 journal = {宮崎大学農学部研究報告, Bulletin of the Faculty of Agriculture University of Miyazaki},
 month = {Feb},
 note = {The effect of rate of radial (diameter) growth on the wood properties was examined at breast height (1.5 m) in 30-year-old Cryplomeria japonica plantation trees grown on the same site. The patterns of radial variation with age and distance from the pith for tracheid length, microfibrill angle, percentage of cell-wall area, strength and elasticity in compression parallel to the grain and shrinkage were compared for the fast-, normal- and slow-grown trees, respectively.
 It has long been generally accepted that in timber from fast-grown plantations there is an association between wide growth rings and low strength in conifers. However, wood from fast-grown trees was not necessarily poor wood. The accelerated growth led to the greater proportion of mature wood with stable high-quality wood. In addition, the assessment of radial wood variation with distance from the pith was rather essential in wood utilization in contrast with that for the variation with age., この研究では, スギ同一林分内で林木の個体間競争によってもたらされた肥大成長速さの違いが木材材質に与える影響を明らかにした.従来, 林木の肥大成長速さが増大すると, 年輪幅が広くなり, 木材の品質は劣るという考え方が支配的であった.しかし, 研究の結果, この通念は必ずしも正しいとは言えないことが明らかになった.すなわち, 肥大成長の速い林木では, 成長の遅い林木に比べて, その成熟材部の材質に著しい差異は認められず, 安定した高品質の成熟材の材積量増加をより期待できることが明らかになった.また, 形成層齢にもとづく材質変動に加えて, 髄からの距離による材質評価法は, 木材利用の実際場面で,極めて有効な手段となるだろう.},
 pages = {45--55},
 title = {スギ林木の肥大成長速さと木材材質},
 volume = {56},
 year = {2010},
 yomi = {キタハラ, リュウシ and キタハラ, リュウシ}
}