On the Influence of the Nature Disasters upon the Relation between Ming Dynasty and Mongolia

The natural disasters which betided northern region,for instance,wind and snow,hailstone,drought,grasshopper etc,had produced important impacts on Ming Dynasty and Mongolia in the course of their long-termed confrontations with each other.In that time,Mongolian's ability for resisting disasters was very limited because of its nomadic economic fragility and instability.When they met with disasters,they must depend on backland economic aid.By force of living,Mongolian feud Aries either went into the region that the Ming dynasty ruled to rob,or initiatively required to trade with Ming Dynasty.So the relation between Ming Dynasty and Mongolia sometimes was at swords' points,sometimes appeared assuasive turn.To Ming Dynasty,nature disasters were disadvantage factor,but as for appeasing Mongolia,nature disasters were the advantage they could use.