本文所叙述及讨论的地域,包括内蒙古的南部黄土高地及地文区域上所谓内蒙古南半部包括河套部份的绥远、甯夏、及甘肃北部;黄土高地包括晋陕高原,南部甘肃,及汾渭诸盆地。——换言之,包括黄河上下游及其支流所经过之地域。地形及地文是讨论气候问题所首先应注意的,关於此地饿中的地形和地文,已经许多地理学者之讨论,(注一)不拟在此重述;

In his paper the climates of the loess plateau, Inner Mongolia and Shensi are discussed exhaustively with reference to Koeppen's and Thornthwaite's criteria. The limit of S.E. monsoon in these rebions is also discussed in terms of Conrad's definition.