Method for evaluating ecological flow discharge effect of water conservancy and hydropower engineering

Abstract

The invention relates to the technical field of environmental protection of hydropower engineering, and discloses a method for evaluating the ecological flow discharge effect of water conservancy andhydropower engineering. The method for evaluating the ecological flow discharge effect of the water conservancy and hydropower engineering comprises the steps of S1, determination of an investigationwater area; S2, field investigation; S3, ecological description and comparison; S4, ecological hydraulic simulation; S5, analysis of a simulation result; S6, result verification; S7, comprehensive evaluation. According to the invention, simulation analysis can be carried out on comprehensive water depth, water surface width, water flow velocity, wetted perimeter, water-passing section area, watersurface area and habitat diversity of a discharged river section; the requirements of water depth, daily activities and reproduction for aquatic environment flow velocity required by all activities inaquatic environments of aquatic animals and aquatic plants are integrated, data of the water depth and the daily activities are combined, the minimum discharge amount is obtained, ecological balancecan be guaranteed, and water resource waste caused by ecological environment imbalance or excessive discharge amount due to insufficient discharge amount is avoided.

Description

technical field [0001] The invention belongs to the technical field of hydropower engineering environmental protection, and specifically relates to a method for evaluating the ecological flow discharge effect of a water conservancy and hydropower project. Background technique [0002] With the demand for energy from the development of the national economy, the development of my country's hydropower resources has formed a development climax since the mid-1990s. There are tens of thousands of hydropower stations under construction and completed in various water systems across the country. Arguments also appear in the newspapers from time to time. Among them, due to the construction of power stations, the downstream rivers dry up, and the deterioration of the water environment is one of the main criticisms of hydropower construction. The so-called "ecological flow" is to protect the ecological functions of the river environment and maintain the sustainable development and utiliza...

AI Technical Summary

Problems solved by technology

However, in the stage of researching and implementing ecological regulation after the project is in operation, there is still a lack of a systematic method for evaluating the effect of ecological flow discharge, which may lead to improper evaluation methods, resulting in inaccurate discharge, and affecting the results of ecological balance. The scientific implementation of ecological dispatch has certain restrictions

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