摘要
为更好地对河流水电开发后的鱼类进行保护,探讨中型山区河流水电站下游的鱼类生态需水量计算。参照大型河流鱼类水力生境参数标准,根据中型山区河流的特点,得到中型山区河流鱼类水力生境参数的参考标准。选取有代表性的四川中型山区河流杂谷脑河进行鱼类生境原型观测,原型观测结果证实了该参考标准能够满足杂谷脑河鱼类对生境的实际需求。基于所得到的参考标准,应用生态水力学法对杂谷脑河红叶二级、理县以及甘堡3座电站减水河段的鱼类生态需水量进行计算分析,得到3座电站的生态需水量推荐值。通过分析可知,所得到的生态需水量推荐值占年均天然流量以及设计引用流量的比例都不高,在3座电站的运行实践中,具有可操作性。
To protect fishes after hydropower development on rivers, calculation on the ecological water re-quirements of fishes in downstream reach of hydropower station in medium mountainous rivers was dis-cussed. With reference to the standard of hydraulic habitat parameter for fishes in large rivers, and accord-ing to the characteristics of medium mountainous rivers, the reference standard of hydraulic habitat parame- ters for fishes in medium mountainous rivers were obtained. The representative medium mountainous river, Zagunao River in Sichuan province, was selected for the prototype observation of fish habitat. The results confirm that this reference standard can meet the actual requirements of fish habitat in the Zagunao River. Based on the obtained reference standards, the ecological hydraulic method was used to calculate and ana-lyze the ecological demand of fishes in the water reducing reaches of Hongye Ⅱ , Lixian and Ganhao hydro-power stations on Zagunao River, and the recommended values of ecological water demand of the three hy-dropower stations were obtained. The analysis resuhs show that the proportion of the obtained recommended values of ecological water requirements in the annual average natural flow are not high. These values have operability in the operation of the three power stations.
出处
《水利学报》
EI
CSCD
北大核心
2013年第5期505-514,共10页
Journal of Hydraulic Engineering
基金
四川省科技厅科技支撑资助项目(2012SZ0044)
关键词
中型山区河流
鱼类
生态需水量
水力生境参数标准
生态水力学法
杂谷脑河
medium mountainous river
fishes
ecological water demand
hydraulic habitat parameter stan-dard
ecological hydraulic method
Zagunao River
