Eco-environment, which is the most fundamental existing condition of human-beings, has been getting more and more serious with the development of human society. It is and will be a long-term topic to study eco-environment problems in geological fields. Through the comprehensive ways of field investigation, remote sense & GIS, analysis of historical information, the ecological features and problems in Shaanxi Province has been systematically studied in this article. Furthermore, through the way of Quaternary...