Correlation analysis between noise reduction function and biological structure of Acer truncatum crown

Abstract

Taking Acer truncatum as the research object, this paper discusses the influence of structural changes on the noise reduction effect, and quantitatively measures and analyzes the biological structural characteristics and noise reduction effect. The conclusions are as follows: 1) structural changes, especially the changes of branches and leaves, have a significant impact on the noise reduction effect of the crown. The noise reduction effect of the complete crown is the best. With the thinning of branches and leaves, the noise reduction ability of the crown gradually decreases. The noise reduction ability of the complete crown >2/3 crown >1/4 crown >0 crown. 2) All the 17 biological structures have a very significant impact on the noise reduction effect of the crown. The light transmittance, porosity and branch density of the crown are the key structures that affect the noise reduction effect of the crown of Acer truncatum. The light transmittance and porosity of the facade are negatively correlated with the noise reduction effect, and the branch density is positively correlated with the noise reduction effect. The smaller the gap between branches and leaves in the crown and the denser the branches, the better the noise reduction effect of the crown.