朱和平 叶银 毕佳美 光辉 杜宁宁

摘 要：选取池州市8个不同营造模式的绿化带，通过模拟噪声源和沿绿化带方向定向、定点测量噪声强度，分析全乔型、乔灌结合型、全灌型、全草型4种典型绿化带下噪声值与空间水平距离之间的关系，求取线性拟合函数，获得不同绿化带营造模式的降噪效果。结果表明：全灌型绿化带降噪效果最明显，全草型绿化带降噪效果最差。城市道路绿化带在栽种植被时，应优先选择分支点低、分支多、枝叶细密的常绿植物，同时选取不同层次的植物合理搭配，以最大限度消除交通噪声对居民生活的影响。

关键词：绿化带;降噪效果;营造模式;池州市

中图分类号 X173;TB533+.4文献标识码 A文章编号 1007-7731（2021）11-0082-05

Research on Noise Reduction Effect of Greenbelt in Different Construction Modes

ZHU Heping et al.

（School of Materials and Environmental Engineering，Chizhou University，Chizhou   247000，China）

Abstract： In this experiment， 8 different greening belts in Chizhou City were selected， and the noise intensity was measured by simulating the noise source， orientating and locating along the direction of the greening belt. The relationship between the noise value and the spatial horizontal distance under a typical green belt. A linear fitting function is obtained to obtain the noise reduction effect of different green belt construction models. The results showed that the noise reduction effect of the green belt combined with whole straw was the most obvious， while the noise reduction effect of the green belt with whole grass was the worst. When vegetation is planted in urban road green belts， evergreen plants with low branching points， many branches and fine branches and leaves should be selected first. At the same time， plants of different levels should be selected rationally to eliminate the influence of traffic noise on residents' lives to the maximum extent.

Key words： Green belt; Noise intensity; Construction mode; Chizhou City

環境噪声污染会干扰人们正常的工作、生产、学习和生活，甚至对人们的身体健康产生潜在的危害，主要表现为对听力的损伤、睡眠的干扰、人体的生理和心理的影响[1-3]。交通噪声是城市环境噪声的主要来源之一，也是城市发展过程中难以避免的问题之一[4]。公路是连接城市不同地域间的快速通道。随着城市道路的扩张和车流量的迅速增加，交通噪声已成为城市环境噪声的重要来源，直接影响着周边居民的学习、生活和工作，交通噪声也已成为影响居民健康状况的重要因素之一[5，6]。公路竣工环保验收对声环境监测有具体技术要求[7]。绿化带是城市中重要的生态基础设施，在减轻绿地系统破碎化、提供动物栖息地和迁徙通道等方面发挥着重要的生态功能。……