Ecological Operation Objectives for Four Major Chinese Carps Spawning in the Xijiang River
The river basin cascade development has prominent influence on water ecology for breeding of four major Chinese carps,and the determination of ecological operation objectives is an important basic work to carry out the ecological operation.This study determines the main control indexes of reservoir operation by analysing the relationships between larval population of Xijiang Dongta spawning ground and impact indexes like water temperature,flood process and flow velocity.Taking peak flow,initial discharge,flow rising range,daily increasing rate of flow and duration of water level rising of the spawning ground as the control indexes,the target flow process of reservoir ecological operation can be determined.Furthermore,the drifting velocity of fish eggs is used as the test index to control the section flow in the scheduling river reach.The proposed method is applied to the ecological operation of Dongta spawning ground,and the target flow processes of ecological operation under low,medium and high flow levels are obtained.
Donghui Wan Hehai Xie Fang Yang Yunyun Shi Xinghua Ma
The Pearl River Hydraulic Research Institute,Guangzhou 510611,Guangdong Province,China;Key Laborator The Pearl River Hydraulic Research Institute,Guangzhou 510611,Guangdong Province,China
国际会议
2018 International Symposium on Water System Operations(ISWRSO 2018)(2018年水资源系统及调度国际研讨会)
北京
英文
1-6
2018-10-12（万方平台首次上网日期，不代表论文的发表时间）