【摘要】 利用实测值建模法、估计值建模法和平均标准木法计算中国科学院千烟洲试验站湿地松(Pi-nus elliotii)人工林各器官生物量和总地上生物量,并与利用文献中的湿地松相对生长方程计算的结果进行比较。结果表明,枝条基径与该枝条叶生物量及总生物量之间存在显著的相关关系;不同方法计算的总地上生物量存在一定的差别,其中实测值建模法和估计值建模法的计算结果最接近,分别为7.9×104和8.0×104kg.hm-2,利用平均标准木法得到的生物量偏低,为7.41×104kg.hm-2;3种方法得到的各器官生物量差别较大,尤其是叶生物量,利用实测值建模法的计算结果为8450 kg.hm-2,估计值建模法和平均标准木法的计算结果分别为6 580和1.0×104kg.hm-2,其中平均标准木法的计算结果因取样的不同而有所差异;直接利用他人建立的相对生长方程计算的生物量与以上3种方法计算结果相比差异较大,使用时须谨慎。计算总地上生物量时,实测值建模法是最可靠的方法,估计值建模法在一定程度上可以代替实测值建模法。更多还原

【Abstract】 In this paper,three methods including allometry with observed data（AMOD）,allometry with calculated data（AMCD）,and average sample tree determination（ASTD） were used to estimate the foliage biomass,branch biomass,trunk biomass,and total biomass of Pinus elliotii in Qianyanzhou station.The results showed that branch diameter was highly correlated to branch biomass and branch leaf biomass,and the linear equation with single parameter（d³） was the best type of equation to describe the correlation.The total biomass calculated by these three methods was adjacent,being 7.9×10⁴ kg·hm^-2 by AMOD,8.0×10⁴ kg·hm^-2 by AMCD,and 7.41×10⁴ kg·hm^-2 by ASTD.The foliage biomass,branch biomass and trunk biomass,especially the foliage biomass,had a distinct difference when estimated by the three methods,being >20% higher or lower by ASTD than by the other two methods.In related literatures,allometric equations were also used to estimate the total biomass and apparatus biomass of P.elliotii,but the calculated values were all higher than those by the three methods.AMOD was most reliable when estimating forest biomass,while AMCD could take the place of AMOD in some extent.更多还原