水电站减水河段鱼类生境需求的水力参数  

Hydraulic parameters of habitat requirement for fish in water reduced river reach due to diversion of hydropower station

作　　者：王玉蓉[1] 李嘉[1] 李克锋[1] 芮建良[2] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [2]华东勘测设计研究院,江苏杭州310014

出　　处：《水利学报》2007年第1期107-111,共5页Journal of Hydraulic Engineering

基　　金：国家自然科学基金重大项目(30490231);国家自然科学基金资助项目(50279025)

摘　　要：本文对雅砻江锦屏二级减水河段,依据国外提出的Tennent法、R2-Cross法中对水力生境参数描述,以及相关冷水鱼大西洋鲑和褐鳟产卵期对水力生境参数的报导,结合该河段鱼类生境的具体情况,对目标鱼类的水力生境需求问题进行了探讨。确定了河段鱼类生境需求的流速、水深、水面宽、湿周、水温等水力参数。为确定鱼类生境需求的水力参数进行了探索性的工作。The water of river reach from the dam to tail water with length of llgkm in No.2 Power Station of Jinping Hydro Project will be reduced due to diversion of power station. The hydraulic parameters of habitat requirement for the existence and growth of fishes in this river reach are investigated. The parameters are determined according to the Tennent method and R2-Cross method and referring to the demand of spawning Atlantic salmon and brown trout. The required flow velocity, average water depth, fiver width, hydraulic perimeter and cross section area of flow are suggested.

关 键 词：鱼类生境 需求 水力参数 减水河段 雅袭江 

分 类 号：TV213[水利工程—水文学及水资源]