CAJ | 학술논문

嘉陵江水能资源丰富，近年来水电开发力度加大。选取中下游干流的典型河段，研究了梯级电站运行对水域形态、径流、水位、流速、泥沙的影响。研究表明：梯级电站运行后，水库群的形成使水域面积增加近1倍；枯水期流量增加、水位上升，丰水期流量减少、水位下降，天然水文过程得到坦化。亭子口作为嘉陵江的龙头电站，它的运行对坝下河段水文情势产生了显著影响，各典型年月均出流量变幅在-46%~64%之间；梯级水库拦沙导致下游河段含沙量明显减少，对各电站大坝下游河床产生一定的冲刷影响。
가릉강수능자원봉부，근년래수전개발력도가대。선취중하유간류적전형하단，연구료제급전참운행대수역형태、경류、수위、류속、니사적영향。연구표명：제급전참운행후，수고군적형성사수역면적증가근1배；고수기류량증가、수위상승，봉수기류량감소、수위하강，천연수문과정득도탄화。정자구작위가릉강적룡두전참，타적운행대패하하단수문정세산생료현저영향，각전형년월균출류량변폭재-46%~64%지간；제급수고란사도치하유하단함사량명현감소，대각전참대패하유하상산생일정적충쇄영향。
Jialing River is rich in hydropower resources that have been developed considerably in recent years. In this paper, some typical mainstream sections of mid-lower Jialing River were selected to investigate the impacts of hydropower development on morphology of waters, runoff, water level, flow velocity and sedimentation. It revealed that the water area almost doubled after operation of the cascade hydropower stations. In dry season, the stream flow increases and the water level rises, but contrariwise in wet season. As the leading hydropower station of Jialing River, the operation of Tingzikou significantly affected the hydrological regime in downstream river of the dam. The change in average monthly discharge varied between -46% and 64%. The signifi-cant reduction in downstream river sediment happened due to reservoir impoundment. Thus, the downstream riverbed of each dam could be eroded to a certain extent.