The Medieval Warm Period (MWP) was another warm period after postglacial epoch.The research results indicated that drifting sands were fixed in sandy land during the MWP in eastern China.

• 摘要中世纪暖期是冰后期的又一次回暖期，研究表明当时我国东部沙地均出现不同程度的流沙固定现象。