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篱垣型垂直绿化的减噪能力及其影响因素

2021-09-15袁琨郭佳陆哲明陈潇赵鸣

中国城市林业 2021年4期

袁琨 郭佳 陆哲明 陈潇 赵鸣

收稿日期:2020-09-10

*基金项目:国家重点研发计划“防护绿地与道路绿地构建及功能提升技术与示范”(2018YFC0506903-01);北京林业大学

科技创新计划项目“中国插花花艺策展中的文化传播研究”(2019RW03)

第一作者:袁琨(1982- ),女,博士生,研究方向为风景园林规划设计与理论。E-mail:cafayk@163.com

通信作者:赵鸣(1964- ),男,博士,教授,研究方向为风景园林规划设计与理论。E-mail:zm0904@126.com

摘要:观赏和减噪是篱垣型垂直绿化需要具备的重要效能。文章通过实地调研,选取藤本月季和大花铁线莲为研究对象,使用高精度声级计(TES-1353S)、采用等距样方法对各样方处的减噪值进行测定和计算,并对植物特征信息进行统计和量化;运用SPSS 26.0分析各样方处的减噪值与植物特征的相关性,发现影响2种篱垣型垂直绿化减噪效果的最显著因素均为植物孔隙率;通过计算和比较2种样本植物的减噪能力,还发现大花铁线莲的减噪能力优于藤本月季。文章最后基于2种植物生长过程中孔隙率的变化特点,提出优化减噪效果的种植策略。

关键词:减噪,垂直绿化,藤本月季,大花铁线莲,种植策略,北京

DOI: 10.12169/zgcsly.2020.09.10.0001

Noise Reduction Ability of Vertical Greening of Hedgerow

and Its Influencing Factors

Yuan Kun Guo Jia Lu Zheming Chen Xiao Zhao Ming

(School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China)

Abstract:Ornamental effect and noise reduction are the important functions of vertical greening of hedgerow. Through the on-the-spot investigation, this paper selects the climbing rose and  Clematis patens  to measure and calculate the noise reduction value of each square by using the high-precision sound level meter (TES-1353S) andequidistant sampling method, and count and quantify the plant characteristic information. SPSS 26.0 is used to analyze the correlation between noise reduction value and plant characteristics, and it is found that the most significant factor affecting noise reduction effect is plant porosity. By studying and comparing the noise reduction ability of the two plants, it is found that  C. patens  is better than climbing rose in noise reduction ability. According to the changing characteristics of plant porosity during the growth of the two plants, we come up with the planting strategy to improve the effect of noise reduction.

Keywords: noise reduction, vertical greening, climbing rose,  Clematis patens , planting strategy, Beijing

籬垣型垂直绿化指的是利用攀援植物对篱架、护栏等框架结构的缠绕和吸附形成的植物绿墙,常用于医院、学校、科研机构、居民区等对噪音较为敏感的区域外围[1]。篱垣型垂直绿化能够在窄小空间较好地实现增绿、美化、抗干扰等多重功能,是目前旧城“拆围改绿”的重要微更新途径之一[2]。研究城市篱垣型垂直绿化主体攀援植物的减噪能力,掌握影响其减噪效果的植物形态因素,有助于促进其效能的全面发挥。……

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