英文篇名A Premilinary Approach to Environment and Agriculture Development in Liangsong in Han Dynasty
英文作者MA Yuan-yuan1 WANG Zhao-yang2 (1. Department of History, Nanjng University, Nanjng 210093; 2. College of History and Civilization, Shaanxi Normal University, Xi’an 710062)
英文关键词Han Dynasty; Liangsong ; environment conditions ; agricultural development