Guadua amplexifolia现存生物量分配和竹材物理结构研究

Present biomass distribution and timber physical structure of Guadua amplexifolia

关键词:  Guadua amplexifplia  生物量  竹材材积  竹材密度

Key words:  Guadua amplexifplia  biomass  bamboo timber volume  density of bamboo timber

摘要:

通过对Guadua amplexifolia现存单株生物量结构和竹材物理结构研究,结果表明:地上部分生物量在枝条上的分配比例高于相同径级毛竹,根冠比较其他丛生竹种大,具有发达的地下根系且易形成密集林分,是良好的防风植物材料; 地上部分各器官生物量与地径、全高均呈显著的正相关,可以用相对生长模型进行模拟; 竹秆有较大的相对壁厚和较低的含水率,可以作为良好的材用竹种进行培育。虽然竹秆壁厚的分布特点有很大差异,但竹秆实际材积和地径之间具有显著的相关性,可以用3次多项式进行模拟。

Abstract:

Research on individual bamboo biomass and timber physical structure indicated that the allocation of Guadua amplexifolia biomass to branch is higher than moso-bamboo evidently. Root shoot ratio is larger than other sympodial bamboo,so it can be considered as a good breakwind plant because of developed root and branch. Every modularity biomass above ground had significant positive correlation with basal diameter and total height,it can simulated with allometric model. The culm had large relative wall thickness and low moisture content,so it can be cultivated as fine timber-used bamboo. Although the wall thickness differed in culms,the timber volume had significant correlation with basal diameter,and it can be simulated with cubic polynomial.