噪音显然是通过叶子纹理和表面粗度减少的叶子尺度
Guangpeng Sun1, Bingqian Ma1, Xianwen Li1
1Research Center for Urban Forestry of Beijing Forestry University, Key Laboratory for Silviculture and Forest Conservation of the Ministry of Education, Beijing 100083, China.
Plants (Basel, Switzerland)
|May 14, 2025
概括
叶子的纹理和表面粗度显著影响城市森林的噪音降低. 选择有叶和粗表面的植物可以增强安静的城市环境的声音减弱.
科学领域:
- 城市生态学 城市生态学
- 声学 声学 在声学方面
- 园艺园艺 园艺园艺
背景情况:
- 城市噪音污染是一个重要的环境问题.
- 城市森林中的木质植物可以减轻交通噪音.
- 关于叶子特征与声音减弱之间的关系的研究有限.
研究的目的:
- 调查叶纹理 (LT) 和叶面粗度 (LSR) 对木质植物降噪能力的影响.
- 为了确定关键的叶子形态特征来选择用于减少城市环境中的噪音的植物.
主要方法:
- 根据LT和LSR选出了18种木质植物物种.
- 使用白噪声在受控实验室环境中测量噪声降低.
- 进行了统计分析,以评估LT,LSR及其对降噪的影响及其相互作用.
主要成果:
- 噪音降低受到LT,LSR及其相互作用的显著影响 (p < 0.05).
- 与叶相比,叶表现出更高的降噪效率.
- 在降低噪音方面,LSR发挥了辅助作用,物理阻塞和干扰是主要的机制.
结论:
- 叶子质地和叶子表面粗度是选择以减少噪音为导向的城市森林植物的有效预测因素.
- 研究结果支持在城市规划中使用特定的叶子特征来改善声学.
相关概念视频
Adaptations that Reduce Water Loss
25.0K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.0K
Light Acquisition
8.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.4K
Major Losses in Pipes
400
When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to...
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to...
400


