Eco-hydrological Regulation of Hydropower Station to Promote the Reproduction of Fishes Spawning Drifting Eggs

XIONG Ming; GUO Wei

doi:10.11988/ckyyb.20230657

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Journal of Changjiang River Scientific Research Institute ›› 2023, Vol. 40 ›› Issue (10) : 1-5. DOI: 10.11988/ckyyb.20230657

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Eco-hydrological Regulation of Hydropower Station to Promote the Reproduction of Fishes Spawning Drifting Eggs

XIONG Ming, GUO Wei

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Abstract

This article presents an eco-hydrological scheduling technology for hydropower stations aimed at enhancing the reproduction of fishes spawning drifting eggs. Artificial ecological flow processes can be created by adjusting the startup time and the outflow rate increment synchronously. In line with the principles and targets, an eco-hydrological regulation model for hydropower stations is proposed, and the corresponding solution ideas are then explained. The model was applied to the eco-hydrological regulation practices at Liyuan Hydropower Station based on the required ecological flow processes and mid-and-long-term inflow for target fish breeding in the middle reach of the Jinsha River. Results verifies the rationality and feasibility of the proposed technology, serving as a valuable reference for the eco-hydrological scheduling of other existing hydropower stations.

Key words

eco-hydrological regulation / fishes spawning drifting egg / prediction of mid-and-long-term inflow / Liyuan Hydropower Station / middle reach of Jinsha River

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XIONG Ming, GUO Wei. Eco-hydrological Regulation of Hydropower Station to Promote the Reproduction of Fishes Spawning Drifting Eggs[J]. Journal of Changjiang River Scientific Research Institute. 2023, 40(10): 1-5 https://doi.org/10.11988/ckyyb.20230657

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