| Nebkha （coppice dune） formation and significance to environmental change reconstructions in arid and semiarid areas |
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| 引用本文： | 郎丽丽,王训明,哈斯,花婷. Nebkha （coppice dune） formation and significance to environmental change reconstructions in arid and semiarid areas[J]. 地理学报(英文版), 2013, 23(2): 344-358. DOI: 10.1007/s11442-013-1014-x |
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| 作者姓名： | 郎丽丽 王训明 哈斯 花婷 |
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| 作者单位： | Key Laboratory of Desert and Desertification,Cold and Arid Regions Environmental and Engineering Research Institute,CAS;College of Resources Science and Technology,Beijing Normal University |
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| 基金项目： | National Natural Science Foundation of China,No.41071008 |
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| 摘 要： | Environments in arid and semiarid regions are extremely sensitive to climate changes.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 as a method of reconstructing environmental changes.Here we summarized recent advances in research on the formation,development,and sediment characteristics of nebkhas and their significance to environmental changes in arid and semiarid regions.Based on the studies of our colleagues,we suggested that research on nebkha formation can provide distinct clues about environmental changes in arid and semiarid regions;however,continued studies are needed.
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| 关 键 词： | 半干旱地区 环境变化 沙堆 灌丛 沙丘 矮林 高清晰度 沉积物特征 |
Nebkha (coppice dune) formation and significance to environmental change reconstructions in arid and semiarid areas |
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| Lili Lang,Xunming Wang,Eerdun Hasi,Ting Hua. Nebkha (coppice dune) formation and significance to environmental change reconstructions in arid and semiarid areas[J]. Journal of Geographical Sciences, 2013, 23(2): 344-358. DOI: 10.1007/s11442-013-1014-x |
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| Authors: | Lili Lang Xunming Wang Eerdun Hasi Ting Hua |
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| Affiliation: | 1. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou, 730000, China
2. College of Resources Science and Technology, Beijing Normal University, Beijing, 100875, China
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| Abstract: | Environments in arid and semiarid regions are extremely sensitive to climate changes. 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 as a method of reconstructing environmental changes. Here we summarized recent advances in research on the formation, development, and sediment characteristics of nebkhas and their significance to environmental changes in arid and semiarid regions. Based on the studies of our colleagues, we suggested that research on nebkha formation can provide distinct clues about environmental changes in arid and semiarid regions; however, continued studies are needed. |
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| Keywords: | nebkha （coppice dune） morphology formation environmental change arid area |
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