摘要
为了减轻三峡水库运行对流域生态系统的不利影响,针对四大家鱼产卵问题,结合历史水文数据,通过生态流组法分析其产卵期的生态水文事件组成,推求满足其产卵需求的流量过程,并通过生态调度对流量过程进行改进。结果表明,四大家鱼产卵过程是由低流量事件及高流量脉冲事件组成,构建的流量过程能够较好地满足四大家鱼产卵对洪水脉冲的需求,实施生态调度能够减轻三峡运行对其产卵造成的不利影响,有利于流域生态环境的改善和修复。
In order to reduce the adverse influence of The Three Gorges reservoir operation on ecological system, the problem of four major Chinese carps spawning was studied. Combined with the hydrological data, eco-hydrological events of spawning period were ana- lyzed and calculated by using environment flow components calculation algorithm. With the statistical result of the ecological event pa- rameters, the ecological flow process, which can meet the spawning demand, was proposed and improved by ecological operation. The results indicated that the four major Chinese carps spawning process is composed of low flow event and high-flow pulse event, the pro- posed flow process can meet its spawning demand of flood pulse. The ecological operation is beneficial to four major Chinese carps spawning and ecological system restoration.
出处
《四川大学学报（工程科学版）》
EI
CAS
CSCD
北大核心
2012年第4期45-50,共6页
Journal of Sichuan University (Engineering Science Edition)
基金
高等学校博士学科点专项科研基金资助项目(20100142110012)
水利部公益性行业科研专项资助项目(201001080)
水利部公益性行业科研专项资助项目(200901010)
关键词
生态调度
生态径流过程
生态流组
生态洪水
四大家鱼
ecological operation
ecological flow process
environment flow components
ecological flood
four major Chinese carps
