The evolution of deserts with climatic changes in China since 150 ka B.P. |
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Authors: | Guangrong Dong Huizhong Chen Guiyong Wang Xiaoze Li Yajun Shao Jiong Jin |
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Institution: | (1) Institute of Desert Research, Chinese Academy of Sciences, 730000 Lanzhou, China |
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Abstract: | According to the bioclimatic zones, dune mobility and the fabric characteristics of stratigraphic sedimentary facies, the
deserts in China are divided into Eastern, Western, Central and Northwestern deserts. Based on the records of stratigraphical
facies, climatic proxies, historical data, etc. in each desert region, the evolution of deserts with climatic changes in time
and space since 150 ka B. P. in China are dealt with; then the evolution of deserts in relation to the glacial climatic fluctuations
caused by solar radiation changes, underlying surface variation and their feedback mechanism is discussed through comparison
with global records; finally, in consideration of global warming due to increasing of greenhouse gases such as C02, the possible tendency of the evolution of deserts and the climatic changes is discussed. |
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Keywords: | 150kaB P evolution of deserts climatic change |
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