地理学报 ›› 2012, Vol. 67 ›› Issue (11): 1526-1536.doi: 10.11821/xb201211009

• 生态与环境 • 上一篇    下一篇

灌丛沙丘形成演化及环境指示意义研究的主要进展

郎丽丽1, 王训明1, 哈斯2, 花婷1   

  1. 1. 中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室, 兰州730000;
    2. 北京师范大学资源学院, 北京100875
  • 收稿日期:2012-07-28 修回日期:2012-09-10 出版日期:2012-11-20 发布日期:2013-01-07
  • 通讯作者: 王训明(1970-),男,研究员,博士生导师,主要研究方向为风沙地貌与沙漠化。E-mail:xunming@lzb.ac.cn E-mail:xunming@lzb.ac.cn
  • 作者简介:郎丽丽(1985-),女,博士研究生,主要研究方向为干旱区环境演变。E-mail:langll07@lzu.edu.cn
  • 基金资助:

    国家自然科学基金(41071008)

Coppice Dune Formation and Its Significance to Environmental Change Reconstructions in Arid and Semiarid Areas

LANG Lili1, WANG Xunming1, Hasi2, HUA Ting1   

  1. 1. Key Laboratory of Desert and Desertification, Cold & Arid Regions Environmental & Engineering Research Institute, CAS, Lanzhou 730000, China;
    2. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China
  • Received:2012-07-28 Revised:2012-09-10 Online:2012-11-20 Published:2013-01-07
  • Supported by:

    National Natural Science Foundation of China, No.41071008

摘要: 干旱半干旱区风沙活动较强烈, 风沙地貌十分发育, 环境演变过程对气候变化响应敏感。由于缺乏高分辨率载体, 在这些地区进行环境变化重建的手段及获得的结果相对贫乏。但是在这些区域发育的灌丛沙丘是风沙堆积体, 其形成演化记录了相对丰富的区域环境演变信息。本文综述了目前在灌丛沙丘形态学特征、发育过程、以及其在区域环境变化重建中的意义等方面的研究进展。我们认为, 灌丛沙丘形成演化研究在揭示干旱区环境演变过程方面有重大的意义, 但还没有形成系统的体系, 这一方面的研究仍有较大的空间。

关键词: 灌丛沙丘, 形态, 发育过程, 环境变化, 干旱区

Abstract: Environments in arid and semiarid areas are extremely sensitive to climate change. High wind activity in these regions has resulted in an extensively developed arid geomorphology, but past environmental changes are poorly understood because of the absence of relatively high-resolution proxies. The accumulation characteristics of nebkhas, which have developed extensively in these regions, can be used to reconstruct environmental changes. Here we summarized recent advances in research on the formation, development, and sediment characteristics of nebkhas and their significances to environmental changes in arid and semiarid areas. Based on the previous studies, we suggested that research on nebkha formation can provide distinct clues about environmental changes in arid and semiarid areas; however, further studies are needed.

Key words: nebkha (coppice dune), morphology, formation, environmental change, arid areas