Based on the diameter, height and biomass of different organs of Pseudosasa amabilis, an individual optimization model is established. The results showed that the relationships among diameter, height, and biomass of different organs followed the power function model, rather than exponential model, linear model, or polynomial model. The biomass proportion of large diameter grade increased apparently after culm harvesting, and diameter was mainly distributed from 4 to 5 cm diameter grade. The standing biomass of cultivated Pseudosasa amabilis was between 48.10 t·hm-2 and 53.10 t·hm-2, while standing biomass of non cultivated P. amabilis stand was between 66.90—70.40 t·hm-2, which is a suitable species for carbon sink. Bamboo individual biomass accounted for 70% of the above-ground biomass and grew multiply as the individual bamboo diameter increasing. The biomass of litter ranged from 8.32% to 18.10% in standing biomass while that of non cultivated bamboo stands was lower than that of cultivated bamboo. There existed a 1∶ 1 constant relationship between leaf biomass and branch biomass.

目的 通过构景因素控制试验，揭示林木胸径与密度对森林景观的影响规律，为林分密度调控提供参考。 方法 以枫香林为例，综合应用PhotoShop、AutoCAD、SpeedTree等软件，开展森林景观模拟；借助林业试验设计方法开展胸径、密度与景观美景度关系的两因素、单因素控制性试验。 结果 （1）在设定的10个密度水平下，胸径变化对美景度（SBE）的影响总体不显著，景观优劣次序为20 cm＞30 cm＞10 cm；但若取各胸径级前3个高分SBE比较，则优先次序为30 cm＞20 cm > 10 cm；（2）密度对美景度的影响总体上为极显著，不同胸径级的美景度随密度变化均为先升后降趋势，以适中密度为最优，但随着树体的增大，峰值密度向左偏移，10 cm、20 cm、30 cm的最佳密度分别为1 389、833、389株·hm^-2。密度-美景度曲线拟合结果为二次曲线，函数形式分别为SBE₁₀=3.435+0.005X₁-1.639E（-6）X₁²（R²=0.719）、SBE₂₀=4.013+0.004X₂-1.677E（-6）X₂²（R²=0.713）、SBE₃₀=6.355+0.001X₃-8.128E（-7）X₃²（R²=0.728）；（3）胸径与密度的交互效应对美景度有极显著影响，但同一密度、同属随机分布的不同模拟场景对美景度的影响不显著。 结论 组合应用多种软件进行森林景观模拟与评价取得了良好结果，方法可行；林分美学质量受胸径、密度两个因素的综合影响，随着胸径增大而提高，但不同胸径有不同的最佳配密匹配度。