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Reconstruction of the spatial patterns of desert/loess boundary belt in North China during the Holocene

机译：全新世中国北方黄土边界带空间格局的重构

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摘要

The desert/loesss boundary belt is the transi - tional region between desert and loess, where aeolian sand and loess interlock in space and alternate in time. It, being seriously unstable in space - time, sensitive to climatic chages and with fragile ecological environment, is an ideal region for studying the global climate change. There are deposi - tional sequences of paleosol with sub - horizontal interbedded aeolian sand and loess, and the stratigraphical evidences show that there widely exist 3-4 layers paleosol in sand lands of northeastern China, 4-5 layers in Mu Us Sandy Land and Hunshandake Sand Land, more than 4 layers in The Qinghai Lake region and the Gonghe Basin of Qinghai Province during the Holocene.
机译：沙漠/黄土边界带是沙漠和黄土之间的过渡区域，风沙和黄土在空间上互锁并随时间交替变化。它的时空严重不稳定，对气候变化敏感，生态环境脆弱，是研究全球气候变化的理想地区。亚卧层夹层的风沙和黄土构成了古沉积层序，地层证据表明，中国东北的沙地广泛存在3-4层古溶胶，毛乌沙地和洪山达克有4-5层。全新世期间青海湖地区和青海共和盆地四层以上的沙地。

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