Gaorui, Lin; Fei, Wang; Qingzhi, Mi - In: Open House International 43 (2018) 1, pp. 16-20
The Qingcheng County, where the ancient city wall is located, has rich regional cultural heritage. This ancient city wall is an important symbol for exhibiting the regional historical culture of Qingcheng. However, urban expansionary construction activities, environment chaos, and other issues...