[2] LIU T S, SUN J M, DING Z L et al. 580000-year environmental reconstruction from aeolian deposits at the Mu Us Desert margin, China[D]. Quaternary Science Reviews, 18, 1351-1364(1999).
[4] GAO S Y, DONG G R, JIN J et al. The formation, evolution and cause of the Mu Us Desert in China[D]. Science in China: Series B, 32, 859-872(1989).
[5] ZHANG J F, LU H Y, ZHOU Y L et al. Luminescence dating of sand-loess sequences and response of Mu Us and Otindag sand fields (North China) to climatic changes[D]. Journal of Quaternary Science, 24, 336-344(2009).
[6] LU H Y, MIAO X D, ZHOU Y L et al. Late Quaternary aeolian activity in the Mu Us and Otindag dune fields (North China) and lagged response to insolation forcing[D]. Geophysical Research Letters, 32, L21716(2005).
[7] LI B S, LYU H Y, JIN H L et al. Processes of the deposition and vicissitude of Mu Us Desert, China since 150 ka BP[D]. Science in China: Series D, 41, 248-254(1998).
[8] HO P. The myth of desertification at China's northwestern frontier: The case of Ningxia, 1929-1958[D]. Modern China, 26, 348-395(2000).
[25] LUI R, ZHAO J B, MA Y D et al. Palaeoclimatic and hydrological environments inferred by moisture indexes from the S4 palaeosol section in the Xi'an region, China[D]. Quaternary International, 493, 127-136(2018).