巴丹吉林沙漠北部风沙地貌形态类型的分区研究  

Division of Aeolian Landform Configuration in Northern Badain Jaran Desert

作　　者：杨萍[1,2] 邹学勇[1,2] 哈斯 蒋紫蕊[1,2] 

机构地区：[1]中国科学院兰州沙漠研究所 [2]武汉电力学校

出　　处：《中国沙漠》1999年第3期210-213,共4页Journal of Desert Research

基　　金：中国科学院重大项目;国家自然科学基金

摘　　要：在研究区内选取具有典型形态类型沙丘的８个样区Ｎ１～Ｎ８，通过统计和研究样区内各种形态的沙丘可以看出，研究区内由西北向东南沙丘的排列顺序出现沙丘由简单形态的沙垄和新月形沙丘到复杂形态的复合型沙山最后达到成熟的星状沙丘。由此着重探讨了研究区内由西北—东南方向沙丘的形成演化特征，以沙丘的空间分布序列来反映沙丘形成的时间序列这样一种时空替代的序列，因而能直观地分析和研究沙丘形成发育的整个发展过程，表明西北部沙漠年轻。Based on the principles of taking sand dune type as dominant accordance and relatively concentrating as the second, the aeolian landform configurations in northern Badain Jaran Desert are divided into 3 regions and 8 sub regions from the northwest to the southeast: Ⅰ.longitudinal sand ridge region, including fixed and semi fixed longitudinal sand ridge sub region; longitudinal sand ridge sub region; and longitudinal sand ridge to star dune sub region. Ⅱ.Barchan dune and chain region, including barchan dune and chain sub region; barchan dune and chain to star dune sub region; barchan dune and chain to scaled dune sub region. Ⅲ.Star dune region, including star dune and compound megadune sub region; star dune sub region. In fact, the spatial features of landform assemblage in the studied area have shown the regularity of dune formation and evolution. The dunes in the southeast are older than those in the northwest.

关 键 词：巴丹吉林沙漠 空间分布特征 时间序列 风沙地貌 

分 类 号：P931.3[天文地球—自然地理学]