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Aquatic ecology reconstruction method in estuary region

An ecological and aquatic vegetation technology, applied in chemical instruments and methods, construction, water conservancy projects, etc., can solve problems such as system instability, low survival rate, ecological invasion, etc., to control water pollution, improve water environment, and suppress eutrophication effect

Inactive Publication Date: 2006-11-01
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of alien species may lead to ecological invasion or system instability, while the survival rate of indigenous species is relatively low due to the poor water environment, which is not advisable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The method is carried out at the mouth of the lake in the west of Taihu Lake, covering an area of ​​3 hectares. Its implementation workflow is as follows:

[0011] The first step is to conduct on-the-spot investigation, determine the water flow, water depth and wave height, and carry out engineering design according to the site conditions; implement the seedlings of ecological engineering tool species, and organize engineering and technical personnel in place.

[0012] The second step is to install the settling area of ​​the first circular demonstration project area and the surrounding soft wall of the buffer zone, complete the anti-wave damage project and the removal of suspended matter in the buffer zone, and place suspended adsorption materials in the settling area and buffer zone , and intermittently release filter-feeding fish in the buffer zone, detect the light transmittance and suspended solids in the water, and initially evaluate the suspended solids removal ef...

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PUM

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Abstract

The invention belongs to the technical field of environmental protection. This invention is based on the principle of "originating from nature and superior to nature", using ecological engineering technology, sedimentation removes suspended substances in water, improves water transparency, and reduces water flow velocity, creating a good environment for the growth of submerged vegetation, combined with filter-feeding Animal populations, establish a healthy and stable ecosystem, and effectively prevent and control eutrophication of water bodies for a long time.

Description

1. Technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a method for restoring aquatic ecology in an estuary area by using native species. 2. Background technology [0002] At present, the degradation of aquatic ecosystems has become a global problem, and the problem of water pollution, especially the eutrophication of lakes, is quite common. Therefore, many countries attach great importance to the reconstruction and restoration of aquatic ecosystems. The United States began to pay attention to the protection of water quality after World War II, and formulated a series of water quality regulations to control water quality pollution caused by rapid industrialization and urbanization, protect surface water from pollution, and restore damaged aquatic ecosystems. . The shallow lake Vesijalvui in Finland removed more than 95% of the exogenous phosphorus load as early as the mid-1970s. The problem of eutrophication in C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/00C02F3/32
Inventor 安树青黄成蒋金辉周长芳刘茂松
Owner NANJING UNIV
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