Flood Storage Wetland Construction for Multi-Target Promotion
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Solution Overview
Problem
Flood storage areas face challenges in balancing their flood storage role with agricultural production, water purification, and biodiversity protection, especially in managing water systems and improving ecological functions.
Innovation Solution
A comprehensive construction method for flood storage area ecological wetlands that integrates agricultural production, water purification, and biodiversity improvement through ecological wetland construction, including functional zoning, water inlet and outlet system design, and habitat restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flood storage areas are used for agricultural production, then agricultural productivity is improved, but water purification function deteriorates
Solution Approach 1:
The flood storage area is divided into multiple functional zones including basic farmland areas, paddy field wetlands, and small and micro wetlands. This segmentation allows different areas to serve different functions - agricultural production in basic farmland and water purification in wetland zones, thereby resolving the contradiction between agricultural productivity and water purification function
Solution Approach 2:
Different regions within the flood storage area are assigned different land types and functions based on local characteristics. Basic farmland areas maintain agricultural production capabilities while wetland zones are specifically designed for water purification, allowing each local area to optimize its quality for its intended function
2Object-generated harmful factors
If water system regulation is implemented for water purification, then water quality is improved, but device complexity increases
Solution Approach 1:
The water purification system utilizes natural wetland processes where vegetation, soil, and microbial communities naturally filter and purify water. This self-service approach achieves water quality improvement without requiring complex mechanical purification devices or energy-intensive treatment systems
Solution Approach 2:
The water inlet and outlet system is designed to serve multiple functions: flood storage, agricultural irrigation, and water purification. By integrating these functions into a single system rather than separate systems, the complexity is reduced while achieving water quality improvement
3Object-generated harmful factors
If vegetation restoration is carried out for biodiversity protection, then biodiversity is improved, but loss of time occurs
Solution Approach 1:
The construction process includes preliminary actions such as land leveling, creating terraced wetlands, and establishing water inlet/outlet systems before vegetation restoration. These preparatory measures create optimal conditions for vegetation establishment, accelerating the ecological restoration process and reducing the time required for biodiversity improvement
Solution Approach 2:
Multiple ecological restoration activities are merged and carried out simultaneously - vegetation restoration, wetland construction, and water system establishment are integrated into a coordinated process rather than sequential steps, thereby reducing the total time required for biodiversity improvement
Data Source
AI summary
The provided is a construction method for a flood storage area ecological wetland oriented to multi-target collaborative promotion. The construction method includes: I. carrying out ecological wetland construction on a flood storage area by taking promotion of agricultural production as a goal; II. according to a water purification target of the flood storage area of the ecological wetland and a current pollution condition in the flood storage area, constructing the ecological wetland based on improvement of the water purification target when the flood storage area does not reach the water purification target at present; and III, in order to improve the biodiversity, carrying out the following ecological wetland construction on the flood storage area. In the method, agricultural production, water purification and biodiversity improvement of the flood storage area are comprehensively considered. The method is the most effective way for multi-target collaborative promotion of the flood storage area.