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以杉木和马尾松604株样木的地上生物量和212株样木的地下生物量实测数据为基础,利用非线性混合模型和哑变量模型方法,建立了包含林分起源的立木地上生物量和地下生物量模型,分析了林分起源对模型参数的影响。结果表明:不同起源的立木地上生物量模型没有明显差异,而地下生物量模型则存在显著差异,相同直径和树高天然林木的地下生物量明显高于人工林木;杉木天然林木的地下生物量比人工林木大近30%,而马尾松天然林木的地下生物量比人工林木要大约45%。
Based on the aboveground biomass of 212 samples of Chinese fir and Pinus massoniana and the underground biomass of 212 samples, nonlinear mixed model and mute variable model method were used to establish the aboveground biomass Underground biomass model, analyzed the origin of the stand on the model parameters. The results showed that there was no significant difference in the aboveground biomass models of different origins, while the underground biomass models showed significant differences. The underground biomass of natural forests with the same diameter and tree height was significantly higher than that of artificial forest trees. Plantation trees are nearly 30% larger, while underground biomass of Pinus massoniana natural forests is about 45% more than plantation trees.