Ecological space optimization and function improvement method for river wetland

Abstract

The invention provides an ecological space optimization and function improvement method for a river wetland, and belongs to the technical field of river treatment. The ecological space optimization and function improvement method for the river wetland comprises the steps that the space structure of a current river is determined and analyzed to obtain the area proportion of different river structures; the overflow capacity of the river is determined, and the flood discharge capacity of the current river is analyzed; on the basis of the cross section of a river channel, the earthwork balance principle, the flood discharge capacity and the shoal flooding duration and depth serve as calculation bases, analysis is conducted through a bisection method, the river channel excavation position, the excavation depth, the vertical desilting space and the desilting volume are determined correspondingly, and a river shoal wetland is optimized; and the space structure area, the proportion condition and the ecological space change quantity of the river channel before and after optimization are correspondingly analyzed, and an ecological space optimization scheme of the river channel is evaluated. According to the ecological space optimization and function improvement method for the river wetland, the section of the river is optimized and treated based on comprehensive consideration of the structure and the function of a river system, the ecological function improvement and the environment optimization of the river are realized, and references are provided for restoration protection and function improvement of river wetlands in China and regional flood control and disaster reduction of the river wetlands.

Description

technical field [0001] The invention belongs to the technical field of river management, and in particular relates to a method for optimizing ecological space and improving functions of river wetlands. Background technique [0002] The river wetland system is an open system in which the natural structure, ecological environment and economic society are coupled with each other. With the development of the economic society, the functions of the river are diversified, including water conservancy function, shipping function, ecological function, historical and cultural function, sewage function, The role of landscape functions is particularly prominent. The function of the river wetland system is determined by its structure, and the components of each structure interact and operate in coordination to realize various functions of the river. With the intensification of human activities and the development and progress of society, the degree of stress on water resources has intens...

AI Technical Summary

Problems solved by technology

With the intensification of human activities and the development and progress of society, the degree of stress on water resources has intensified, the cross-section of the river has been continuously reduced, the flood discharge capacity has been reduced, the ecological space of the river has been occupied, the ecological function has been seriously degraded, and water environment pollution has become increasingly prominent, resulting in The ecological benefits of river wetlands are difficult to fully exert

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