梯级水库建设对乌江径流累积效应研究  

Study on the Cumulative Effects of Cascading Reservoirs in Wujiang

作　　者：王晓[1] 逄勇[1,2] 牛勇[1] 纪风强 

机构地区：[1]河海大学环境学院,南京210098 [2]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,南京210098 [3]天津城建设计院,天津300122

出　　处：《科学技术与工程》2015年第3期275-279,共5页Science Technology and Engineering

摘　　要：流域梯级开发是我国一项较大的流域开发系统工程,诸多梯级电站所在河流存在径流量大,径流时空分布不均的特点,而梯级电站的规划与兴建,对当地流域水文情势具有明显的影响效果。以乌江干流为例,运用率定结果合理的水环境数学模型对乌江流域不同方案下水动力环境的模拟,对比分析了乌江梯级开发区域内天然情况、单库运行和梯级水库联合调度对于乌江沿程干流径流调节作用的影响效应及差异度,结果显示:1河流水库的建立削弱了洪季流量,提高了枯季流量,具有径流调节及均化作用;2水库的均化径流效应会随着沿程水库的联合运行呈现逐步增强状态,即水库对径流的调节作用会随梯级水库的联合运行产生沿程累积叠加效应,进而逐步使得河段沿程的年径流量分配更加均匀。Cascading reservoir development plays the significant role in watershed developing systems engineer.Rivers where the cascading hydropower stations builted has characteristics of the large amount of runoff in flood season and the unbalance of annual runoff distribution.Planning and construction of cascade hydropower stations has the significant influence on hydrological regime of local river basin.The mathematical models of wujiang river was builted and the influence of hydropower operating on wujiang river was contrastively analysed by simulating the dynamic environments of wujiang river which was effected by three kinds of scheduling conditions in Wujiang River,it＇s found that：1） the establishment of river reservoir which has the function of runoff regulation and homogenization will strengthen the flow in dry season,and weaken flows in flood season;2） the effect of homogenizing on runoff will gradually be strengthened with the operation of cascading reservoir,and the allocation of annual runoff will become more uniform under the influence of reservoirs which was distributed along the rivers.

关 键 词：工程水文学 梯级水库 水文情势 模拟方案 累积效应 乌江 

分 类 号：TV121[水利工程—水文学及水资源] TV7