Particularly, the problems and their eco-essences of Qinhuai River in Nanjing area are discussed and analyzed on the basis of an economic-social-natural compound ecosystem.

• 并根据外秦淮河作为自然-经济-社会复合生态系统的特点，重点对其水环境恶化的现状和生态实质进行了研究分析。