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Expansion and contraction of Chinese deserts during the Quaternary

文献类型：期刊论文

作者Liu, DS; Sun, JM
刊名SCIENCE IN CHINA SERIES D-EARTH SCIENCES
出版日期2002-12-01
卷号45页码:91-101
关键词expansion contraction desert Quaternary
ISSN号1006-9313
文献子类Article
英文摘要Episodic dune formations during the Quaternary are found in many deserts of China. The causes of desert expansions on different time scales are not the same. Desert extension at about 1.1 and 0.9 Ma ago were the response to the active tectonic movements, whereas the desert evolutions on the ten-thousand years time scale were the response to the orbital scale climatic changes. Spatial scale studies on desert evolution indicate that desert margins shifted greatly during the last glacial maximum (LGM) and the Holocene optimum, its changing from 125degreesE of the LGM to 105degreesE of the climatic optimum. Historical desertification in the semiarid China is not a response to climate drought but largely associated with the human impacts (mainly over-cultivation) since about 2300 years ago, which leads to the reworking of the underlying LGM sands.
WOS关键词EOLIAN DEPOSITION ; NORTH PACIFIC ; MOJAVE DESERT ; SAND RAMPS ; RECONSTRUCTION ; COLORADO ; EXAMPLE ; SCALE ; LOESS
WOS研究方向Geology
语种英语
WOS记录号WOS:000182514600013
出版者SCIENCE CHINA PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/77515]  
专题中国科学院地质与地球物理研究所
通讯作者Liu, DS
作者单位Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu, DS,Sun, JM. Expansion and contraction of Chinese deserts during the Quaternary[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2002,45:91-101.
APA Liu, DS,&Sun, JM.(2002).Expansion and contraction of Chinese deserts during the Quaternary.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,45,91-101.
MLA Liu, DS,et al."Expansion and contraction of Chinese deserts during the Quaternary".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 45(2002):91-101.

入库方式： OAI收割

来源：地质与地球物理研究所

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