南平市不同植物群落减噪效果分析

Analysis of effect of different plant communities on the noise reduction in Nanping City

在南平市选取4种类型12种有代表性的公园内植物群落进行减噪效果的测定和分析。结果表明,植物群落的生长特征、复杂程度、测定距离等均能影响植物的减噪率。其中,减噪效果最好的是常绿针叶阔叶林,5m的减噪率为35.72%,10m的减噪率为39.36%。且植物群落的盖度与白噪音的相对减噪率呈极显著相关性。

In Nanping, 12 kinds of four types of plant communities in the representative park were chosen, aiming to determine and analyze the effect of their noise reduction. The results showed that different types of plant communities were different in weakening effect of noise, and the growth characteristics, complex- ity, measuring distance and other factors of the plant community could affect the noise reduction rate of plants communities. Among them, the best effect of noise reduction was the evergreen coniferous broad- leaved forest. And the noise reduction rate of 5 m was 35.72% , and the noise reduction rate of 10 m reached 39.36%. And the relationship between the coverage rate of plant communities and the relative noise reduction rate of white noise exhibited a very significant correlation.