Method for evaluating regulation and control effect of water diversion engineering on water power of plain river network

Abstract

The invention discloses a method for evaluating the regulation and control effect of a water diversion project on the water power of a plain river network. The method comprises: collecting monitoring data according to a water diversion scheme of the water diversion project; calculating index parameters according to the monitoring data; assigning scores to preset evaluation indexes according to the index parameters, the preset evaluation indexes including a hydrodynamic condition index regional water change rate, an economic effect index water transfer efficiency and a constraint index tank storage capacity change rate; and evaluating the water power regulation and control effect of the water diversion and diversion project on the plain river network according to the score assignment result. The brand-new method for evaluating the regulation and control effect of the water diversion and diversion project on the water power of the plain river network is established, the improvement effect of the water diversion and diversion project on the water power of the river network is systematically evaluated, the evaluation result is more comprehensive and objective, and a scientific basis can be provided for implementation and management of a water delivery project scheme.

Description

technical field [0001] The invention belongs to the technical field of water environment management, and more specifically relates to a method for evaluating the hydrodynamic control effect of a plain river network by a water diversion project. Background technique [0002] In the plain river network area, the river network is densely covered, the water system is developed, and the river flow rate is relatively slow. Hydrodynamic force is an important basic variable of the river and lake ecosystem. In order to improve and maintain the regional water environment, enhancing the hydrodynamic condition has become one of the measures to control the water environment. Water diversion and drainage is a relatively common and important means. Water diversion and drainage projects improve hydrodynamic conditions and increase the reoxygenation of water bodies, which is conducive to improving the self-purification ability of water bodies. At the same time, water diversion also replaces ...

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Problems solved by technology

[0003] At present, the analysis of the effect of water diversion on improving the water environment still lacks a unified evaluation index system. Existing studies usually analyze the hydrodynamic improvement effect of water diversion projects based on water exchange rates and economic indicators. Therefore, it is particularly important to propose a set of methods for evaluating the effect of water diversion projects on the hydrodynamic regulation of plain river networks, so as to provide a scientific basis for the implementation and management of water transfer projects.

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