摘要
本文基于三维水动力数学模型和中华鲟产卵场适合度评估方法,对葛洲坝坝下中华鲟产卵场的产卵适合度与大坝泄流关键指标(大坝出库流量和泄流方式)的定量关系进行评估。分析表明,适宜中华鲟自然繁殖的最佳出库流量范围约为15000～25000 m3/s;有利于中华鲟自然繁殖的最佳大坝泄流方式为先大江电厂发电泄流,后二江泄水闸弃水泄流,最后二江电厂发电泄流;小流量下最佳的机组泄流方式为大江电厂靠右岸机组发电泄流。研究结论给出了中华鲟产卵场保护的关键指标及其控制范围,为依托三峡-葛洲坝梯级水库开展中华鲟可持续性管理提供了基本理论依据。
For the Yangtze reach downstream to Gezhouba dam, this paper assesses the quantitative relationship between the suitability of spawning ground and the key indicators of dam discharge, using a 3D hydrodynamic model and the assessment method for the Chinese sturgeon. This analysis shows that the most suitable flow for the sturgeon spawning in this reach is in a range of 15000 - 25000m3/s, and that there exists a certain mode of dam flow release that is the best for the sturgeon＇s natural reproduction ： Dajiang power plant discharging first, Erjiang sluice second, and Erjiang power plant last. In the case of low discharge, the best mode is to operate Dajiang power-plant units near the the right bank. These results prbvide a basis for protection of sturgeon spawning and scheduling of the Three Gorges-Gezhouba cascade reservoir operation.
出处
《水力发电学报》
EI
CSCD
北大核心
2013年第4期64-70,共7页
Journal of Hydroelectric Engineering
基金
国家自然科学基金面上项目(50979050)
国家杰出青年科学基金(50925932)
关键词
环境水力学
中华鲟
大坝泄流方式
相关性分析
产卵场适合度
生态调度
environmental hydraulics
Chinese sturgeon
dam discharge mode
correlation analysis
spawning ground suitability
ecological scheduling
作者简介
王煜（1976-），女，博士．E-mail：wangyuhoney@163．com
