宁波主要园林树种木材物理力学性质及抗风能力评价  

Evaluation of Wood Properties and Wind Resistance of Branches of Major Garden Trees in Ningbo

作　　者：楼璐 何云核[1] LOU Lu;HE Yun-he(School of Landscape Architecture,Zhejiang A&F University,Hangzhou,Zhejiang 311300)

机构地区：[1]浙江农林大学风景园林与建筑学院,浙江杭州311300

出　　处：《安徽农业科学》2021年第12期116-120,共5页Journal of Anhui Agricultural Sciences

摘　　要：[目的]掌握宁波主要园林树种的抗风能力。[方法]调查9号、18号台风过后宁波主城区园林树种的受害情况,筛选出8个种植范围较广且较为典型的园林树种进行相关试验分析。测定8个树种枝条的木材纤维特性、木材力学性质、抗风性能,分析木材性质与抗风值的相关性,综合评价抗风性。[结果]抗风值与枝条纤维长宽比(相关系数0.843)、枝条弯曲弹性模量(相关系数0.779)存在强正相关。8个树种中,以柚、木犀、樟、水杉的抗风能力较好,广玉兰、构树、意杨的枝条抗风能力较差。[结论]该研究为今后宁波市区园林树种的选择与应用提供了科学依据。[Objective]To master the wind resistance ability of main garden trees in Ningbo.[Method]The damage of landscape tree species in the main urban area of Ningbo after typhoon No.9 and No.18 was investigated.Eight typical landscape tree species with wide planting range were selected and analyzed.The wood fiber properties,wood mechanical properties and wind resistance of 8 tree species were measured,and the correlation between wood properties and wind resistance was analyzed.[Result]There was a strong positive correlation between wind resistance value and fiber aspect ratio(correlation coefficient 0.843)and bending modulus of elasticity(correlation coefficient 0.779).Among the 8 tree species,Citrus maxima,Osmanthus fragrans,Cinnamomum camphora,Metasequoia glyptostroboides,while Magnolia grandiflora,Broussonetia papyrifera and Populus euramevicana had lower wind resistance.[Conclusion]This study provides a scientific basis for the selection and application of landscape tree species in Ningbo City in the future.

关 键 词：园林树种 纤维长度 纤维宽度 弹性模量 抗风能力 

分 类 号：S781[农业科学—木材科学与技术]