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Ecological riparian zone construction method

A construction method and technology for riparian zones, applied in the field of resource and environmental engineering, can solve the problems of large gaps, failure to improve partial shading of riparian zone purification of non-point source pollution near water areas, and lack of vitality of riparian zone ecosystems, etc. Inexpensive, landscaping effect on riverbanks

Inactive Publication Date: 2012-08-15
JIANGSU UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, my country mainly adopts imitation wooden pile revetment, concrete grille revetment and other methods to restore and rebuild the riparian ecosystem. No matter what method is used, it will not improve the purification of non-point source pollution in the riparian zone and increase the shading degree of the near water area. Improve the vitality of the near-water ecosystem and the quality of the near-water habitat as the core
Therefore, the restored or reconstructed riparian ecosystem lacks vitality, and compared with the natural riparian zone, there is a large gap

Method used

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  • Ecological riparian zone construction method

Examples

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Effect test

Embodiment 1

[0039] Embodiment 1 is used for the making of the concrete circular pipe of revetment

[0040] Choose a concrete circular pipe with an inner diameter ranging from 30 to 150 cm, a height ranging from 120 to 150 cm, and a pipe wall thickness of about 5 cm. Drill holes on the pipe wall of the round pipe, the diameter of the holes can be 2-10mm, the horizontal distance between two adjacent holes can be 5-10cm, and the vertical distance can be 10-20cm. In order to ensure the water-permeable effect, the density of the holes on the smaller circular tube can be appropriately increased.

[0041] Three layers of geotextiles are wound on the inner wall of the above-mentioned concrete circular pipe as a reverse filter layer to prevent the loss of matrix components in the circular pipe.

[0042] A grid layer with a thickness of 5-15 cm is formed on the outer wall of the above-mentioned concrete circular pipe by pouring concrete. The grid shape is set as a square, and the area can be 10-20...

Embodiment 2

[0043] The construction of embodiment 2 ecological riparian zone

[0044] Taking a polluted river channel about 50 meters long, 12 meters wide and about 1.1 meters deep in Zhenjiang City, Jiangsu Province as an example, the construction process of the riparian zone is as follows:

[0045] The first step is to clean up the existing riverbanks and dredge the river to stabilize the riverbank soil and reduce the water level in the river to about 10cm (relative to the river bottom elevation).

[0046] In the second step, the concrete circular pipe made in Example 1 is used to revetment. Arrange the concrete circular pipes closely and arrange them near the waterline of the constant water level, and the circular pipes are in the horizontal phase (such as figure 2 ) are arranged in a linear and free manner along the plane shape of the river, arranged in one row, and arranged in two or three rows for seriously eroded river sections.

[0047] The bottom of the round pipe is buried in...

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Abstract

The invention relates to an ecological riparian zone construction method. According to the method, circular concrete tubes with permeable holes distributed on tube walls are adopted for shore protection, artificial wetland matrix beds are constructed in the circular tubes, and finally emergent aquatic plants and humidogene trees and shrubs are planted in the surfaces of the artificial wetland matrix beds, thus constructing wetland biological communities. A riparian zone constructed by virtue of the method has the functions of slowing down flowing speed of water at a littoral zone, stabilizing river banks, creating a growth environment for plants in a water area close to a river course and providing multi-pore habitats to benthic animals; and the plant communities can absorb river pollutants, thereby purifying river water quality. As being capable of reconstructing degraded riparian zone plant communities, the method provided by the invention lays a foundation for the construction of a healthy riparian zone ecosystem, and provides technologies to restore the degraded riparian ecosystem and reconstruct and restore vigorous riparian zones and river ecosystems.

Description

technical field [0001] The invention relates to the technical field of resource and environment engineering, in particular to a novel construction method of an ecological riparian zone. Background technique [0002] Due to the acceleration of the urbanization process, people have gradually increased the construction of the land on both sides of the river. For the sake of flood control safety, the river revetment often adopts the form of hardened revetment, which not only destroys the vegetation structure of the river bank and the surrounding area. The habitat of benthic animals in the riparian zone also makes the riparian zone lose its function of buffering and purifying non-point source pollution, which directly leads to the deterioration of the water environment and seriously affects the health of the aquatic ecosystem. [0003] In order to change the current sickness of many riparian zones in our country, rebuild the dynamic riparian zone ecosystem, restore its ecological...

Claims

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Application Information

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IPC IPC(8): E02B3/12
Inventor 左俊杰
Owner JIANGSU UNIV
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