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中国沙漠 ›› 2016, Vol. 36 ›› Issue (6): 1512-1518.DOI: 10.7522/j.issn.1000-694X.2016.00004

• 沙漠与沙漠化 • 上一篇    下一篇

敦煌鸣沙“共鸣箱”成因类型

叶喜艳1, 宋春晖2, 于昊1, 张婷3, 李小苗1, 马振华1   

  1. 1. 兰州大学 资源环境学院, 甘肃 兰州 730000;
    2. 兰州大学 地质科学与矿产资源学院, 甘肃 兰州 730000;
    3. 中国科学院地质与地球物理研究所 兰州油气资源研究中心, 甘肃 兰州 730000
  • 收稿日期:2015-12-04 修回日期:2016-01-24 出版日期:2016-11-20 发布日期:2016-11-20
  • 通讯作者: 宋春晖(E-mail:songchh@lzu.edu.cn)
  • 作者简介:叶喜艳(1993-),女,甘肃会宁人,硕士研究生,主要从事第四纪气候与环境演变的研究。E-mail:yexy14@lzu.edu.cn
  • 基金资助:
    国家自然科学基金项目(41330745,41272128);国家重点基础研究发展计划项目(2013CB956403)

Genetic Types of Singing Sand “Resonant Tank” in Dunhuang

Ye Xiyan1, Song Chunhui2, Yu Hao1, Zhang Ting3, Li Xiaomiao1, Ma Zhenhua1   

  1. 1. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China;
    2. School of Geology and Mineral Resources, Lanzhou University, Lanzhou 730000, China;
    3. Lanzhou Center for Oil and Gas Resource, Institution of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2015-12-04 Revised:2016-01-24 Online:2016-11-20 Published:2016-11-20

摘要: 关于鸣沙表面结构及发声机制方面的研究已取得一定的成果,鸣沙发声主要与自然沙粒表面的多孔(坑)结构构成的共鸣腔有关,其共鸣机制与亥姆霍兹共鸣腔相似。通过分析敦煌鸣沙所处的自然环境以及扫描电镜下沙粒表面形态结构等,对鸣沙共鸣腔的成因类型展开了全面的探讨。结果表明:敦煌鸣沙所处的独特的自然环境是鸣沙鸣响的天然共鸣箱,主要受地形的影响;鸣沙沙粒表面广泛分布有多孔状的物理结构,且其表面形态多样,这种形态多样的多孔状结构可构成鸣沙鸣响的自身共鸣腔,主要受化学作用、物理机械作用以及二者叠加作用的影响。

关键词: 鸣沙, 敦煌, 共鸣箱, 表面形态结构, 成因类型

Abstract: The research on surface structure and voice mechanism of singing sand has achieved certain results at present.Some researchers think that the sound of singing sand is mainly related to the resonance cavity, which is made up of the porous structure on the surface of the natural singing sand grains.The resonance cavity is the key of the voice of singing sand, moreover, the resonance mechanism is similar to the Helmholtz resonance cavity.Based on the analysis of the natural environment and the observation to surface morphological structures of the singing sand in Dunhuang under the scanning electrical microscope, the study about the genetic types of the resonance cavities had been conducted on a comprehensive discussion.The results show that the unique natural environment of Mingsha mountain is the natural resonant tank, and it is mainly affected by geomorphology; Moreover, porous physical structures are widely distributed over the singing sand surface, and its surface morphology is diverse, then the various porous structures can constitute resonance cavities themselves, which are mainly influenced by their physical and chemical functions, or both of the two effects.

Key words: singing sand, Dunhuang, resonant tank, surface morphological structures, genetic types

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