The Hunshandake Desert is located at the northern edge of the East Asian monsoon region,and its natural environment is sensitive to monsoonal changes.Geologic records suggest that desert evolution corresponding to cli...The Hunshandake Desert is located at the northern edge of the East Asian monsoon region,and its natural environment is sensitive to monsoonal changes.Geologic records suggest that desert evolution corresponding to climate change had experienced several cycles in the Holocene,and the evolutionary process can be distinguished by four dominant stages according to changing trends of the environment and climate.(1) Holocene Ameliorative Period(11.0-8.7 cal ka B.P.),when the desert area gradually shrank following an approaching warm-wet climate and strengthening summer monsoon.(2) Holocene Optimum(8.7-6.0 cal ka B.P.),when the majority of moving sand dunes were stabilized and vegetation coverage quickly expanded in a suitable warm-wet climate and a strong summer monsoon.(3) Holocene Multivariate Period(6.0-3.5 cal ka B.P.),during a low-amplitude desert transformed between moving and stabilized types under alternating functions of cold-dry with warm-wet climate,and winter monsoon with summer monsoon.(4) Holocene Decay Period(since 3.5 cal ka B.P.),when the desert area tended to expand along with a weakened summer monsoon and a dry climate.展开更多
Located in Alxa Right Banner,Inner Mongolia,the Badain Jaran Desert is the second-largest drifting desert in China.It features a stunning landscape of towering sand dunes,inter-dunal lakes,and winderoded landforms.As ...Located in Alxa Right Banner,Inner Mongolia,the Badain Jaran Desert is the second-largest drifting desert in China.It features a stunning landscape of towering sand dunes,inter-dunal lakes,and winderoded landforms.As a typical example of ongoing evolution of desert landscapes under a temperate,hyper-arid climate,Badain Jaran Desert-Towers of Sand and Lakes was inscribed on UNESCO's World Heritage List on July 26,2024 during the 46th session of the World Heritage Committee.展开更多
基金by the Chinese National Natural Science Foundation (40971005)
文摘The Hunshandake Desert is located at the northern edge of the East Asian monsoon region,and its natural environment is sensitive to monsoonal changes.Geologic records suggest that desert evolution corresponding to climate change had experienced several cycles in the Holocene,and the evolutionary process can be distinguished by four dominant stages according to changing trends of the environment and climate.(1) Holocene Ameliorative Period(11.0-8.7 cal ka B.P.),when the desert area gradually shrank following an approaching warm-wet climate and strengthening summer monsoon.(2) Holocene Optimum(8.7-6.0 cal ka B.P.),when the majority of moving sand dunes were stabilized and vegetation coverage quickly expanded in a suitable warm-wet climate and a strong summer monsoon.(3) Holocene Multivariate Period(6.0-3.5 cal ka B.P.),during a low-amplitude desert transformed between moving and stabilized types under alternating functions of cold-dry with warm-wet climate,and winter monsoon with summer monsoon.(4) Holocene Decay Period(since 3.5 cal ka B.P.),when the desert area tended to expand along with a weakened summer monsoon and a dry climate.
文摘Located in Alxa Right Banner,Inner Mongolia,the Badain Jaran Desert is the second-largest drifting desert in China.It features a stunning landscape of towering sand dunes,inter-dunal lakes,and winderoded landforms.As a typical example of ongoing evolution of desert landscapes under a temperate,hyper-arid climate,Badain Jaran Desert-Towers of Sand and Lakes was inscribed on UNESCO's World Heritage List on July 26,2024 during the 46th session of the World Heritage Committee.
