A Trial Discussion on Hequ Corrider for Nationalities in Qing-zang Highland;

Liuhuzhou was located in Hequ area,a half-agricultural and half-animal husbandry geographical region and a key frontier fort where inhabited people of various minority nationalities in frequent contacts in the Tang Dynasty.

Ecological rehabilitation effect assessment of soil and water conservation model——A case study of the upper reaches of Liangdang River,Changjiang Basin;