The Environmental Significance of Tamping Sandy Layer in Ancient City Ramparts on Erdos Plateau
WANG Nai'ang, HUANG Yinzhou,HE Tonghui,FENG Wenyong, LONG Hao,CHENG Hongyi
Acta Geographica Sinica . 2006, (9): 937 -945 .  DOI: 10.11821/xb200609005