摘要
采用 2因子 2次回归正交旋转组合设计方法 ,进行毛竹材用丰产林密度效应定量研究 ,建立材用毛竹丰产林的产量模型 ,对立竹密度和平均胸径分别与产量进行回归 ,建立单因子产量模型和对两因子互作效应进行分析 ,其最佳竹林密度为 42 83株 /hm2 ,平均胸径 9 0cm ,竹林可获得最高产量 5480 1kg/hm2 。
This article studied on Phyllostachys heterocycla cv.pubescens forest density effect for timber use quantitatively by using methods of orthogonal rotation of two factors and quadratic regression, and built bamboo high-yield model for timber use forest, and then analysed the effects of single factor,interaction as well as the interaction of density and D.B.H.on yield. The result showed that the optimum density is 4283 stems per hectare, the mean D.B.H.is 9.0 cm, the highest yield of bamboo forest will be up to 54801 kg/hm^2.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1998年第S1期1-4,共4页
Scientia Silvae Sinicae
关键词
毛竹
密度效应
边际产量
Phyllostachys heterocycla cv. pubescens, Density effect, Limited yield
