The Multi-Level Intake Structure of High-Altitude Reservoirs in Aquatic Environments

摘要

The water temperature structural changes in reservoirs are significantly influenced by the construction of reservoirs, whereas the annual operation difference influences the stability of the river ecological system, especially those of rivers in vulnerable aquatic environments and plateau areas. Therefore, the relationship among these factors must be investigated, and improvement measures must be proposed accordingly. In this paper, the operation difference and water temperature structural changes of the Longyangxia Reservoir in the upstream of the Yellow River were analyzed using the measured and the simulation data of a 3D mathematical water environmental model. The influence of the changes in water temperature on the aquatic environment of rivers was investigated by examining the behavior of aborigine fishes in the upstream of the Yellow River. The water temperature differences between the surface outlet and the underport intake were also simulated. The water conservancy project influences the reproduction and growth of aquatic organisms in rivers. Using an appropriate multi-level intake structure can relieve the negative influence of temperature on aquatic ecology as well as protect the ecological environment and aquatic biodiversity in downstream river channels.