Management method of river ecological flows based on reservoir operation

Abstract

The invention provides a management method of ecological flows river based on reservoir operation. The management method comprises the following steps: firstly, establishing a basic scheme, a compromise propose and an ideal scheme on the ecological flows management to be respectively suitable for the demands of high, medium and low water supply guarantee rate, and maintain health state of the basic, good and ideal ecological system of the river, simultaneously, dividing the capacity space of the reservoir to correspond to the management scheme of the ecological flows from top to down in sequence; then adopting a reservoir operation curve to guide so as to supply the water for the people and forming an integral reservoir ecological operation scheme by combining with the management scheme of the ecological flows; and finally applying a genetic algorithm, taking the water supply guarantee rate meeting the plan as the basic constrains and taking disturbance which reduces hydrologic regime of the river as an optimal target to optimize parameters of the reservoir capacity partition, dispatch curves and the like, so that the management scheme of ecological flows of the river based on the reservoir operation is obtained. The method can be suitable for demands of the different water supply guarantee rates, provide the optimized ecological flows process and effectively protect the ecological system of the river.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection and comprehensive utilization of resources, and relates to a river ecological flow management method based on reservoir scheduling. Background technique [0002] Effective management of river ecological flow is a basic task of reservoir operation and a basic requirement for river ecosystem protection. Providing the ecological flow required by rivers is essential to maintain the health of the river ecosystem. However, with the increase in social and economic water use in my country, the shortage of social and economic water is becoming more and more serious. The management of river ecological flow needs to take into account human and ecological needs. There are two important criteria for judging the advancement of a river ecological flow management method based on reservoir scheduling: 1) It can be suitable for different human water supply guarantee rates, and 2) It can provide the best...

AI Technical Summary

Problems solved by technology

Therefore, although the existing river ecological flow management methods based on reservoir scheduling can meet the requirements of different water supply guarantee ratios, it is difficult to achieve the maximum protection of river ecosystems.

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