玄武湖地处南京市区东北部，面积约 330公顷。自 1988年爆发大面积死鱼至今 (1991年遭遇特大洪水除外 )，共死亡湖鱼约 25万公斤，直接经济损失超百万元。为了从根本上解决这一难题，笔者在有关部门的支持下，做了大量的调查、研究。现就突发死鱼的原因及防治措施提出一些意见 Xuanwu Lake is located in the northeast of Nanjing City, an area of ​​about 330 hectares. Since the outbreak of a large area of ​​dead fish in 1988 (except for the exceptionally large floods in 1991), a total of about 250,000 kilograms of lakes were killed and the direct economic losses exceeded one million yuan. In order to fundamentally solve this problem, the author with the support of the departments concerned, did a lot of investigation and research. Now on the causes of sudden death and prevention and treatment measures put forward some suggestions