常见园林树木降噪效益与其冠层结构特征相互关系研究  

Study on the correlation between the benefits of noise reduction of common landscape trees and canopy structure characteristics

作　　者：卢伟娜 勾莹莹[3] 王旭东 田国行 LU Wei-na;GOU Ying-ying;WANG Xu-dong;TIAN Guo-xing(College of Landscape Architecture and Art,Henan Agricultural University,Zhengzhou 450046,China;School of Horticulture and Landscape Architecture,Henan Vocational College of Agriculture,Zhengzhou 451450,China;Kaifeng City Development Group Co.,Ltd.,Kaifeng 475001,Henan,China;School of Architecture,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)

机构地区：[1]河南农业大学风景园林与艺术学院,郑州450046 [2]河南农业职业学院园艺园林学院,郑州451450 [3]开封市城市发展集团有限公司,河南开封475001 [4]华北水利水电大学建筑学院,郑州450045

出　　处：《湖北农业科学》2022年第15期172-175,共4页Hubei Agricultural Sciences

摘　　要：选取郑州市10个常见园林树种为研究对象,模拟固定噪声源(胎噪),通过AWA6228型多功能声级计测定了不同距离梯度下树木对噪声的削减能力,并利用CI-110对所测定树木冠层结构特征叶面积指数(LAI)、平均叶片倾角(MLA)和孔隙度(GAP)进行量化,分析降噪能力与冠层结构特征两者之间的关系。结果表明,树木在不同距离梯度下对噪声的削减能力存在差异。树木群落冠层叶面积指数与降噪能力呈正相关,孔隙度指数与降噪能力呈负相关,树冠肌理与降噪能力呈中度相关,而平均叶片倾角和叶面积大小与降噪能力无相关性。Ten common landscape tree species in Zhengzhou City were selected as research objects,and the simulated fixed noise source(fetal noise)was simulated.The AWA6228 multiple-functional sound level meter was used to measure the noise reduction un⁃der different distance gradients,and the canopy structural characteristics including leaf area index(LAI),mean leaf angle(MLA)and gap fraction(GAP)of the trees were quantified by using the CI-110 to analyze the relationship between the noise reduction ability and the canopy structure characteristics.The results showed that there were differences in the ability of trees to reduce noise under dif⁃ferent distance gradients.The LAI index of the canopy of tree communities was positively correlated with the noise reduction ability.The GAP index was negatively correlated with the noise reduction ability.The canopy texture and noise reduction ability were moder⁃ately correlated,while the MLA and leaf area were not correlated with the noise reduction ability.

关 键 词：园林树木 降噪能力 冠层结构 叶面积指数 孔隙度 叶倾角 

分 类 号：S688[农业科学—观赏园艺] X593[农业科学—园艺学]