论文部分内容阅读
400毫米年降水量等值线的南北,农耕民族和游牧民族有着相互的交流和融合,但更多的则是绵延千年的征战杀伐和对资源的舍命争夺。敌人的敌人是朋友欧亚大草原以西的匈奴消亡了,而东部的柔然还没有力量向西扩展,于是游牧在大草原中部阿尔泰山和叶尼塞河上游地区的突厥部落壮大起来。突厥本来归附于柔然,他们占有较
400-mm annual precipitation contours of north and south, farming and nomadic peoples have mutual exchange and integration, but more is the extension of the Millennium Campaign to kill and sacrifice resources for life. Enemy enemies are friends Huns to the west of the Eurasian Prairie have died away, while the eastern Rouran has no power to expand westward, and nomadic tribes have grown up in the Turks in the central Altai and upper Yenisei. Turkic originally attached to Rouran, they have more