东洞庭湖漉湖死鱼事件的原因分析与政策建议  

Cause Analysis and Policy Suggestion on Fish Death Accident in Dongting Lake

作　　者：谢永宏[1,2] 陈心胜[1,2] 侯志勇[1,2] 李旭[1,2] 邓正苗[1,2] 潘瑛[1,2] 

机构地区：[1]中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室,湖南长沙410125 [2]中国科学院亚热带农业生态研究所洞庭湖湿地生态系统观测研究站,湖南岳阳414018

出　　处：《农业现代化研究》2010年第5期561-564,共4页Research of Agricultural Modernization

基　　金：国家自然科学基金项目(编号:30770362);中国科学院知识创新工程项目(编号:KZCX2-YW-425-02;KZCX1-YW-08-01-02)

摘　　要：通过走访询问、数据收集和样品采集分析,对东洞庭湖漉湖发生的一次较大面积的鱼虾死亡事件进行了原因分析。结果表明:死鱼事件主要是因水体有机物含量较高出现水体缺氧所致,有机物主要来源于当地在非汛期残留的枯枝落叶、汛期随水漂流而来的有机残留物以及造纸厂排放的污水;此外,养殖规模和养殖密度的不合理性以及虾蟹的特殊生育期也是诱导此次事件发生的原因之一。就如何避免此类事件的发生提出了政策建议。We did preliminary investigation on the causes of fish death accident occurred in Lu Lake, one of the small lakes in East Dongting Lake, through inquiry of local fishermen and government, field monitoring, sample collection and lab analysis.The results showed that oxygen deficiency in the watercaused by the decomposition of organic matteris the primary cause accounting forthis accident.The source of high amount of organic matterincludes sewage discharge from paper mill and litter in the non-flood season as well as organic debris brought by flooding.Furthermore, oversized scale and high density of aquaculture and special developmental stage of fishes are also one of the causes for the accident.we provided policy advices to avoid the occurrence of similaraccidents.

关 键 词：洞庭湖 水产养殖 缺氧 渔业 

分 类 号：F326.4[经济管理—产业经济]