汉唐时期北方游牧部族部落南迁的经济地理因素

The Economic Geographical Cause on Northern Nomads'Southward Migration in Han-Tang Periods

汉唐时期北方游牧部族部落南迁,多至蒙古高原游牧经济生态圈南缘的阴山—河套地区,合黎山、龙首山和燕山—滦河上游及大小凌河流域一带。这里为北方游牧部族部落冬南夏北的游牧生产活动提供了春冬牧场。适于游牧生活的自然条件及近邻农耕地区和商贸路线的地理位置,为游牧民的生存、生活提供了必要的保障,成为不同时期北方游牧部族部落南下迁居这一带的经济地理因素。

Northern nomadic tribes in the Han and Tang periods mostly moved to the Yinshan-Hetao region,the Heli Mountain,Longshou Mountain,the upper reaches of the Yanshan-Luanhe areas and the Large and Little Linghe River basic areas,which was the southern margin of nomadic economic ecosystem of Mogolian Plateau,where they set up their winter camps during their seasonal migration.The grassland,mountains and rivers here in the region provided ground for the nomadic production activities of the northern nomadic tribes.The natural conditions,neighbor farming area and trade routes were convenient for nomads to get grains or other daily necessities.These economic geographical elements played a key role on the nomads＇southward migration.