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美洲黑杨无性系生物质能源林初选试验

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为了探讨美洲黑杨(Populus deboides)作为生物质能源林的可行性,并进一步筛选更有潜力的适合作为生物质能源林的无性系,以8个美洲黑杨无性系为参试对象,按照随机区组试验营造生物质能源林,并测定了胸径、株高等17个指标,采用多元统计分析中的主成分分析方法和多元线性回归分析方法,对数据进行了分析。结果表明:8个无性系均为生物质能源林的重要树种,其中,2号无性系最优,其次为4号和3号无性系。采用逐步回归的分析方法,拟定了单株生物量(W)与胸径(D)、株高(H)的回归方程,为W=2。878 7D+0。655 3H-16。528 0,通过测定胸径和株高,可以快速估算其生物量,从而为美洲黑杨生物质能源林经营提供重要参考。
The Preliminary Selection Experiment of Populus deltoides Clonal Biomass Energy Forest
In order to explore the feasibility of Populus deltoides as a biomass energy forest and to further select more promising clonal varieties suitable for biomass energy forest,a study was conducted with eight clonal P.deltoides as subjects.A ran-domized block design was implemented to establish biomass energy forests,and 17 indicators,including diameter at breast height and plant height,were measured.Data analysis was performed using principal component analysis and multiple line-ar regression analysis.The results showed that all eight clones are important species for biomass energy forests,with clone 2 being the most optimal,followed by clones 4 and 3.Using a stepwise regression approach,a regression equation was de-veloped for individual biomass(W)in relation to diameter at breast height(D)and plant height(H),resulting in W=2.878 7D+0.655 3H-16.528 0.By measuring the diameter at breast height and plant height,biomass can be quickly esti-mated,providing important references for the management of P.deltoides biomass energy forests.

Populus deltoidesClonalEnergy forest

郭新安、胡学、孙洪刚、张源长

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中交广州航道局有限公司,广州,510000

中国林业科学研究院亚热带林业研究所

襄阳市测绘研究院

美洲黑杨 无性系 能源林

2025

东北林业大学学报
东北林业大学

东北林业大学学报

北大核心
影响因子:0.74
ISSN:1000-5382
年,卷(期):2025.53(1)