| 长江三角洲地区11个县（市、区）城市道路林带降噪能力及其影响因素 |
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| 引用本文： | 李亚楠,黄绍荣,格日乐图,严力蛟.长江三角洲地区11个县（市、区）城市道路林带降噪能力及其影响因素[J].浙江农林大学学报,2020,37(2):251-258. |
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| 作者姓名： | 李亚楠 黄绍荣 格日乐图 严力蛟 |
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| 作者单位： | 1.浙江大学 生命科学学院, 浙江 杭州 3100582.宁波市生态环境局 余姚分局, 浙江 余姚 3154003.中国林业科学研究院 亚热带林业研究所, 浙江 杭州 311400 |
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| 基金项目： | “十三五”国家重点研发计划项目2016YFC0502704 |
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| 摘 要： | 目的 城市交通噪声对城市居民生活品质的影响日益严重，城市道路林带在衰减交通噪声方面优势明显。合理选取城市绿化带降噪能力衡量指标，使城市绿化带建设能够达到最优降噪效果。 方法 选取长江三角洲地区4条纬度带上11个县（市、区）交通主干道的道路林带作为研究对象，引入三维绿量作为衡量林带降噪能力的指标，结合不同类型林带的占比、三维绿量值以及三维绿量值与乔木及乔木混交林枝下高，综合对比分析林带降噪效果，进行初步评估。 结果 11个县（市、区）中南京玄武区、镇江润州区交通干道道路林带的降噪效果更优，连云港连云区、丽水庆元县的交通干道道路林带的降噪效果较差。具有合理配置的乔灌混交林更利于降噪，由模拟模型计算得到的11个县（市、区）的附加降噪量与统计获得的三维绿量之间呈正相关关系。 结论 林带三维绿量结合乔木枝下高这一参数综合分析认为:枝下高低于2 m的林带降噪效果更佳。
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| 关 键 词： | 城市生态学 道路林带 降噪 三维绿量（LVV） 枝下高 |
| 收稿时间： | 2019-04-15 |
Noise attenuation ability and its affecting factors of green belts of 11 areas in the Yangtze River Delta |
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| LI Yanan,HUANG Shaorong,Geriletu,YAN Lijiao.Noise attenuation ability and its affecting factors of green belts of 11 areas in the Yangtze River Delta[J].Journal of Zhejiang A&F University,2020,37(2):251-258. |
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| Authors: | LI Yanan HUANG Shaorong Geriletu YAN Lijiao |
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| Affiliation: | 1.College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China2.Yuyao Branch, Ningbo Ecological Environment Bureau, Yuyao 315400, Zhejiang, China3.Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang, China |
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| Abstract: | Objective Under the rapid development of urbanization, the impact of pollution caused by urban traffic noise on the living quality of urban residents has been increasingly recognized. Among many solutions to noise reduction, the green belts on the city roads enjoy the unique advantage in the reduction of traffic noise. The order is to provide references for the selection of measurement index of the noise reduction ability of the urban green belt, and give suggestions on how to achieve the optimal noise reduction effect of the urban green belt construction. Method This research studies the road forest belts on the major traffic roads of 11 areas (counties, cities and districts) in the Yangtze River Delta and uses the comprehensive comparative analysis of the ratio of different forest belt types, living vegetation volume and the under branch height to conduct a preliminary evaluation on the noise reduction of green belts. Result The noise reduction of green belts on the major traffic roads in Xuanwu District of Nanjing and Runzhou District of Zhenjiang are most effective among the 11 areas (counties, cities and districts), while those in Lianyun District of Lianyungang and Qingyuan Town of Lishui are least effective. Rationally mixed forest of arbor and shrub is better for the noise reduction. The results of the simulation model indicate a positive relationship between additional noise reduction of 11 areas (counties, cities and districts) and the living vegetation volume obtained from statistics. Conclusion From the comprehensive analysis of the combination of the living vegetation volume and the under branch height, it could be concluded that the effect of noise reduction within the range of 2 m of the under branch height is better. |
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