A method for determining the layout of low-water ecological restoration projects in straight rivers

Abstract

The invention discloses a method for determining the layout of a low-water ecological restoration project in a straight river, and belongs to the technical field of river ecological restoration. The present invention adopts the following technical scheme: a method for determining the layout of a straight river low-water ecological restoration project, which is characterized in that it includes the following steps: Step 1, establishing a water flow mathematical model; Step 2: calculating the characteristics of the low-water ecological restoration river flow; Step 3: Analyze and determine the layout of the low-water ecological restoration project; Step 4: Verify the impact of the low-water ecological restoration project on flood discharge. On the basis of analyzing the empirical formula of the morphological characteristics of curved rivers under natural conditions, the present invention uses numerical simulation to provide a plane layout for the low-water ecological restoration engineering design of a large number of space-limited straight rivers, which is scientific and reasonable.

Description

technical field [0001] The invention relates to a method for determining the layout of a low-water ecological restoration project in a straight river, and belongs to the technical field of river ecological restoration. Background technique [0002] In recent years, excessive human disturbance has degraded the original natural ecosystems of many river courses. For the sake of saving land and flood safety, people cut the bends and straighten the river, and the cross section of the river is basically unchanged along the course. This kind of single-form river reduces the diversity of the ecological environment of the water flow and leads to the degradation of the river ecosystem. In order to meet the needs of people to protect the environment and get close to nature, it is necessary to carry out ecological restoration of rivers, especially urban rivers, so that they can become ecological landscape rivers with twists and turns, diverse water flows, and rapid and slow coexistence....

AI Technical Summary

Problems solved by technology

[0004] At present, there are many engineering practices for large-scale ecological restoration, but small-scale ecological restoration is rarely applied, and the current layout design of small-scale ecological restoration along straight rivers is mostly based on the statistical data of natural river bends. Empirical methods determine the design parameters. Therefore, inventing a scientific and reasonable method for determining the layout of low-water ecological restoration projects in straight rivers has become an urgent task in the field of river ecological restoration technology.

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