Ecological restoration method for steep lakeside zone of polluted lake with shallow water type bottom mud

A technology of ecological restoration and sediment, applied in water/sludge/sewage treatment, polluted waterway/lake/pond/river treatment, chemical instruments and methods, etc. The effect of reducing sediment pollution and stable and lasting ecological landscape

Inactive Publication Date: 2020-02-14
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the past, the ecological restoration of the lakeshore zone of shallow lakes only focused on selecting areas with heavy water pollution to set up wave-dissipating layers and wave-proof layers to plant aquatic plants such as submerged, emergent, and floating water to build aquatic

Method used

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  • Ecological restoration method for steep lakeside zone of polluted lake with shallow water type bottom mud
  • Ecological restoration method for steep lakeside zone of polluted lake with shallow water type bottom mud
  • Ecological restoration method for steep lakeside zone of polluted lake with shallow water type bottom mud

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Example Embodiment

[0023] Example

[0024] Take the Baima Lake lakeside zone as an example to carry out ecological restoration projects:

[0025] The starting point of the scope is at the mouth of the Lianghe River in Hongze District, Huai'an City, and the end point is at the junction of Ruanqiao River in Jinhu County. The area facing the open water surface is dredged 50 to 200 meters from the shore to the lake area, with an average dredging depth of 0.5 meters. The dredged area is about 1.06 million square meters, the dredged earth volume is about 1.1 million cubic meters, and the phytoremediation area is about 1.21 million square meters.

[0026] 1. Repair scope

[0027] Ecological restoration of the lakeside zone is carried out along the 50-meter range of the water-facing slope of the 34.4km road around Baima Lake. From the land area to the waters near the lake, a vegetation zone of trees and shrubs-grass cover-wet vegetation-emergent vegetation-submerged vegetation is formed .

[0028] 2. Ecologica...

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Abstract

The invention discloses an ecological restoration method for a steep lakeside zone of a polluted lake with shallow water type bottom mud. The method comprises the steps: ecological desilting is carried out on a selected lakeside zone, then removed bottom mud is used for reinforcing a lake embankment nearby, an ecological revetment structure is constructed according to 'code for design of levee project', land area plants, emergent aquatic plants, submerged plants and other plants are planted for phytoremediation, meanwhile, wave dissipation protection is set, the plants are protected, and dailymaintenance is kept. Ecological desilting and lakeside restoration are combined, near-shore bottom mud pollution of slope protection is degraded, sludge is disposed nearby, timber pile and natural revetment is implemented, the land area plants are planted to stabilize embankments, the emergent aquatic plants, submerged plants and other plants are planted to reduce pollution, water and soil conservation is carried out, a complete ecological community is formed, and lakeside zones are effectively restored.

Description

technical field [0001] The invention belongs to the technical field of lakeside protection, and relates to an ecological restoration method for steep lakeside belts of polluted lake sediments in shallow water lakes. [0002] technical background [0003] With the development of society, affected by natural and human activities, the structure and ecological process of the lakeside belt are disturbed and destroyed, resulting in the decline of its ecological function and biodiversity and the degradation of natural landscape. The lakeside zone plays an important role in water conservation, flood storage and drought prevention, siltation promotion, land reclamation, water purification, biodiversity maintenance and ecological balance. In the past, the ecological restoration of the lakeshore zone of shallow lakes only focused on selecting areas with heavy water pollution to set up wave-dissipating layers and wave-proof layers to plant aquatic plants such as submerged, emergent, and ...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCC02F3/32C02F2103/007
Inventor 葛士建李小菠王凌峰邱爽
Owner NANJING UNIV OF SCI & TECH
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