“…In comparison with the 1930s Dust Bowl in the southern plains of the USA (Worster, 1982;Woodhouse and Overpeck, 1998), most studies of the 1920s drought have been based on historical records in Chinese and have received scant mention in international journals (Hughes et al, 1994;Fu et al, 1999;Qian and Zhu, 2001;Liang et al, 2003). Recently, several studies have also reported that the 1920s drought in northern China was recorded in tree rings (Hughes et al, 1994;Zhang and Wu, 1997;Liu and Ma, 1999;Liang et al, 2003;Liu et al, 2004). These studies were, however, limited to a few forest stands in North China.…”