Noise Reduction Effect of Plant Landscape in City Zoo Based on Animal Protection

  • Junxi Fan
Keywords: Animal Protection, Urban Zoo, Plant Landscape, Noise Reduction Effect


The noise reduction function of plant landscape has been widely concerned by researchers at home
and abroad in today's increasingly serious noise pollution. This paper takes the research of the noise reduction
effect of urban zoo plant landscape as the starting point from the perspective of animal protection. Based on the
previous research, the aim is to lay a foundation for systematically studying the noise reduction function of the
zoo plant landscape with more reasonable experimental design and more scientific data analysis. This
experiment used a unified noise source to predict the noise reduction effects of 8 garden plants, 3 woodlands and
5 surface materials, and conducted a tentative study on noise reduction of the sound source and the receiver of
the plant belt at different heights and noise reduction effect of plant belts at different distances from sound
sources. The experimental results show that: (1)The leaves are broad, thick, evenly distributed on the plants, and
the branches with low branching and dense planting have the best effect on the attenuation of noise, and effect
of the area, width and texture of the leaves on the noise reduction is significant, where the width is more
pronounced than the area. (2)For different arrangements, the arrangement density is proportional to the
attenuation of the A-level, but when the density is too high, it will have a negative effect on the attenuation of
the low-frequency sound. At the same density, the staggered arrangement has the best effect on noise reduction,
followed by the aligned and scatter, but when the arrangement density is very low, the scatter-type has the best
effect on noise reduction; the effect of alignment is the worst. (3)The noise reduction effect of various soft
ground materials is better than concrete floor, but the noise reduction effect of various ground cover plants is
similar to muddy road. Finally, through the comprehensive analysis of various experimental contents, discussed
the principle of reducing noise in plants, the selection criteria of hail plants, the planting density of
noise-reducing green belts, planting forms, etc. Initially, providing a theoretical basis for the use and
configuration of plant landscapes in urban zoos.