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对两种不同栽植密度的杉木Cunninghamialanceolata木材密度和弦向、径向、体积全干干缩率进行了测定和分析．结果表明，木材密度随着栽植密度的增大而增大，且达到极显著水平；而木材弦向、径向和体积全干干缩率，则随着栽植密度的增大而减小；两种栽植密度的木材体积全干干缩率与基本密度呈负相关；木材干缩比与基本密度、栽植密度大的呈正相关，与栽植密度小的呈负相关．因此，适当增加栽植密度可以改善杉木木材的性质，但其影响规律仍需进一步研究．
Wood densities and chordwise, radial, and volumetric dry shrinkage of two Cunninghamia lanceolata plants with different planting densities were measured and analyzed. The results showed that the wood density increased with the planting density and reached a very significant level; while the wood chord, radial and volume dry shrinkage decreased with increasing planting density; two The dry shrinkage of wood with volume density was negatively correlated with the basic density. The wood shrinkage was positively correlated with the basic density and planting density, but negatively with the density of planting. Therefore, proper planting density can improve the properties of Chinese fir wood, but the influence law needs further study.