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KMID : 1024520160250101407
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Journal of the Environmental Sciences
2016 Volume.25 No. 10 p.1407 ~ p.1415
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Noise-reduction Function and its Affecting Factors of Plant Communities
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Song Xiu-Hua
Wu Qian-qian
Yu Dong-ming
Piao Yong-Ji
Cho Tae-Dong
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Abstract
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In this study, we investigated the relationship between noise reduction and the community structure of nine groups of typical plant communities as well as the reduction in noise at different frequencies. The semantic differential method was adopted to explore the perception of noise reduction. The results indicated that there was a significantly positive correlation between noise reduction and coverage, a significantly negative correlation between noise reduction and bifurcate height, and a negative correlation between noise reduction and bare rate. However, there was no significant correlation between noise reduction and height, diameter at breast height, or crown width. The reduction of middle-frequency noise was better than that of low- and high-frequency noise. The indicators "quiet" and "calm" showed that plant communities could reduce the noise perceived by humans. However, overly dense woodland caused nervousness, fear, depression, and other negative effects. Relatively open environments and those with large forest gaps obtained the highest evaluation.
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KEYWORD
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Plant community, Noise reduction, Community structure, Psychological noise reduction, Semantic differential method
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